A mattress edge belt slitting structure, mattress sewing machine and mattress edge belt sewing method

Abstract

The present application relates to the field of mattress processing, and discloses a mattress edge strip slitting structure and a mattress sewing machine, which comprise a support, a material placing assembly, a sliding mechanism, a guide device and a slitting mechanism; the material placing assembly is arranged on the support and is used for guiding and storing the edge strip; the sliding mechanism is arranged on the support; the guide device is used for guiding the edge strip, so that the edge strip forms a hem after being inserted into an input port of the guide device; the guide device is arranged on a movable part of the sliding mechanism and downstream of edge strip conveying of the material placing assembly; the sliding mechanism drives the guide device to reciprocally slide along a direction close to or away from the material placing assembly, and the guide device can drive the edge strip on the guide device to reciprocally move; the slitting mechanism is arranged on the support and is provided with a slitting space on the support; and the slitting mechanism is used for cutting the edge strip in the slitting space. The present application is convenient to use and has high use efficiency.

Description

Technical Field

[0001] This invention relates to the field of mattress processing, and in particular to a mattress edge band cutting structure, a mattress sewing machine, and a mattress edge band sewing method. Background Technology

[0002] The side panels and fabric of a mattress are typically sewn together using edge tape. After the edge tape is sewn to the edges of the side panels and fabric, it needs to be cut. Currently, edge tape cutting is usually done manually with scissors. While some more automated machines use a guillotine to cut the edge tape, this process is inconvenient and inefficient. For the next mattress, the edge tape must be pulled out again, reloaded, and then sewn onto the next mattress. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to solve at least one of the technical problems mentioned above.

[0004] The solution to the technical problem of this invention is:

[0005] A mattress edge band cutting structure includes a support, a feeding assembly, a sliding mechanism, a guide device, and a cutting mechanism. The feeding assembly is mounted on the support and is used to guide and store the edge band. The sliding mechanism is mounted on the support. The guide device guides the edge band so that after the edge band is inserted from the input port of the guide device, the edge band extending from the output port of the guide device forms a folded edge. The guide device is mounted on the movable part of the sliding mechanism and is located downstream of the edge band conveying of the feeding assembly. The sliding mechanism drives the guide device to slide back and forth along a direction close to or away from the feeding assembly, and the guide device can drive the edge band on the guide device to reciprocate. The cutting mechanism is mounted on the support, and the support has a cutting space. The cutting mechanism is used to cut the edge band in the cutting space. When the sliding mechanism drives the guide device to move towards the feeding assembly to the end of its stroke, the cutting space is located downstream of the guide device, and the edge band output from the output port of the guide device is located in the cutting space.

[0006] As a further improvement to the above technical solution, the feeding assembly includes multiple guide rods, which are respectively fixed on the bracket and are used for the side strip winding.

[0007] As a further improvement to the above technical solution, the guiding device includes a first guiding block, on which a guiding channel is formed. The cross-section of the guiding channel is U-shaped, and the included angle between the two straight sides of the U-shaped guiding channel is α. The α gradually decreases along the direction from the input port to the output port of the guiding channel. The side strip can pass through the input port of the guiding channel and exit through the output port of the guiding channel, so that the side strip is folded.

[0008] As a further improvement to the above technical solution, the guiding device further includes two or more guide rollers, all of which are arranged on the movable part of the sliding mechanism, and the guide rollers are used to guide the side strip.

[0009] As a further improvement to the above technical solution, the movable part of the sliding mechanism reciprocates in the left-right direction, all the guide rollers extend vertically, and the U-shaped opening of the guide channel faces forward.

[0010] As a further improvement to the above technical solution, the guiding device further includes a second guide block. The second guide block has a U-shaped channel that runs through it. The second guide block is located downstream of the side belt conveyor of the first guide block. The side belt that passes through the guide channel enters the input port of the U-shaped channel. The U-shaped opening in the U-shaped channel faces the same direction as the U-shaped opening of the guide channel. The second guide block has a chamfer located on one side of its downstream end. The second guide block has a second groove located on the surface of the second guide block where the output port of the U-shaped channel is located. The length of the second groove extends in the front-back direction and passes through the second guide block, so that after the side belt is output in the U-shaped channel, it is turned by the chamfer, thereby causing the side belt to fold in the opposite direction.

[0011] As a further improvement to the above technical solution, the sliding mechanism includes a slide rail, a pushing device and a slider. The slide rail is mounted on the bracket, the slider is mounted on the slide rail, the slider and the slide rail can slide relative to each other, and the guiding device is mounted on the slide rail.

[0012] As a further improvement to the above technical solution, the slitting mechanism includes a blade and a first cylinder. The first cylinder is mounted on the bracket, one end of the first cylinder is hinged to the bracket, and the other end of the first cylinder is hinged to the blade. The blade is connected to the bracket via a rotating shaft and is located downstream of the side conveyor of the guide device.

[0013] As a further improvement to the above technical solution, the rotating shaft is provided with a flange, and a spring is provided between the flange and the bracket. The spring is sleeved on the rotating shaft, and the two ends of the spring abut against the flange and the bracket respectively.

[0014] The present invention also provides a mattress sewing machine, including the slitting structure in any of the above-described technical solutions.

[0015] The present invention also provides a method for sewing mattress edge tape using the above-mentioned mattress sewing machine, which includes the following steps:

[0016] Step 1: Pass the side strip through the feeding assembly and guide device in sequence, and then sew the side strip to the mattress to connect the side panel and the fabric of the mattress until a certain length 'a' is left unsewn to maintain the sewn connection between the side strip and the mattress.

[0017] Step 2: The sliding mechanism drives the guide device to move away from the mattress, so that the guide device moves to the upstream of the cutting mechanism, and the cutting mechanism cuts the edge strip so that the length of the edge strip from the cut point to the sewing point to the mattress is b, where b is greater than or equal to a.

[0018] Step 3: Sew the side strip of length b, which is cut to the edge where it is sewn to the mattress, to the unsewn part of the mattress of length a, to connect the side panel and the fabric of the mattress.

[0019] Step 4: The sliding mechanism drives the guide device to move away from the feeding assembly.

[0020] This causes the guide device to pull out the side strip on the feeding assembly.

[0021] The beneficial effects of this invention are as follows: The feeding assembly is used to place the side strip and guides the conveying of the side strip so that it is tensioned and guided into the guiding device. The guiding device guides the two sides of the side strip to fold. After the side strip is output from the guiding device, the two sides of the side strip are folded, and the folded sides of the side strip can be sewn onto the mattress fabric and side panels. After sewing the mattress is completed, the connection between the side strip on the guiding device and the mattress is maintained. Then, the sliding mechanism drives the guiding device to move towards the feeding assembly, and the cutting mechanism cuts the side strip between the guiding device and the mattress, separating the side strip on the mattress from the side strip on the guiding device. Next, the sliding mechanism drives the guiding device to move away from the feeding assembly, and the static friction generated between the guiding device and the side strip on the guiding device pulls out the side strip from the feeding assembly. In this way, the side strip at the output end of the guiding device remains on the guiding device, thereby avoiding the need for manual reloading of the side strip, resulting in a high degree of mechanization and high processing efficiency. Attached Figure Description

[0022] Figure 1The isometric view of the mattress edge strip cutting structure of the present invention Figure 1 ;

[0023] Figure 2 The isometric view of the mattress edge strip cutting structure of the present invention Figure 2 ;

[0024] Figure 3 The second guide block of the present invention is an isometric view. Figure 1 ;

[0025] Figure 4 The second guide block of the present invention is an isometric view. Figure 2 ;

[0026] Figure 5 It is the isometric view of the first guide block of the present invention. Figure 1 ;

[0027] Figure 6 It is the isometric view of the first guide block of the present invention. Figure 2 ;

[0028] Figure 7 This is a flowchart of the mattress sewing method of the present invention.

[0029] In the attached diagram: 1-bracket, 11-first groove, 2-feeding assembly, 21-guide rod, 3-sliding mechanism, 31-pushing device, 32-slide rail, 33-slider, 4-guide device, 41-first guide block, 410-guide channel, 42-guide roller, 43-second guide block, 430-U-shaped channel, 431-chamfer, 432-second groove, 5-slitting mechanism, 51-first cylinder, 52-blade, 53-rotating shaft, 54-spring, 55-flange. Detailed Implementation

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of the present invention, and not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0031] The following will clearly and completely describe the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are all within the scope of protection of the present invention. Furthermore, all connections / linkages mentioned herein do not simply refer to direct connection of components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in the present invention can be combined interactively without contradicting each other.

[0032] Reference Figures 1-6 A mattress edge band cutting structure includes a support 1, a feeding assembly 2, a sliding mechanism 3, a guide device 4, and a cutting mechanism 5. The feeding assembly 2 is mounted on the support 1 and is used to guide and store the edge bands. The sliding mechanism 3 is mounted on the support 1. The guide device 4 guides the edge bands, such that after the edge bands are inserted from the input port of the guide device 4, the edge bands extending from the output port of the guide device 4 form a folded edge. The guide device 4 is mounted on the movable part of the sliding mechanism 3 and on the edge bands of the feeding assembly 2. Downstream, the sliding mechanism 3 drives the guide device 4 to slide back and forth along the direction of approaching or moving away from the feeding assembly 2. The guide device 4 can drive the side strip on the guide device 4 to move back and forth. The cutting mechanism 5 is set on the support 1. The support 1 is provided with a cutting space. The cutting mechanism 5 is used to cut the side strip in the cutting space. When the sliding mechanism 3 drives the guide device 4 to move towards the feeding assembly 2 to the end of the stroke, the cutting space is located downstream of the guide device 4, and the side strip output from the output port on the guide device 4 is located in the cutting space.

[0033] As described above, the feeding assembly 2 is used to place the side strip and guides the conveying of the side strip, so that the side strip is tensioned and guided into the guide device 4. The guide device 4 is used to guide the two sides of the side strip to fold. After the side strip is output from the guide device 4, the two sides of the side strip are folded. The folded two sides of the side strip can be sewn onto the mattress fabric and side panels. After the sewing of the mattress is completed, the connection between the side strip on the guide device 4 and the mattress is maintained. Then, the sliding mechanism 3 drives the guide device 4 to move towards the feeding assembly 2, and the cutting mechanism 5 cuts the side strip between the guide device 4 and the mattress, so that the side strip on the mattress is separated from the side strip on the guide device 4. Next, the sliding mechanism 3 drives the guide device 4 to move away from the feeding assembly 2. Through the static friction between the guide device 4 and the side strip on the guide device 4, the side strip on the feeding assembly 2 is pulled out. In this way, the side strip at the output end of the guide device 4 is still retained on the guide device 4, thereby avoiding the need for manual reloading of the side strip. The degree of mechanization is high and the processing efficiency is high.

[0034] The feeding assembly 2 is used to place and guide the side strip. In some embodiments, the feeding assembly 2 includes multiple guide rods 21, which are respectively fixed to the bracket 1. The guide rods 21 are used for winding the side strip. In actual use, the feeding assembly 2 includes three guide rods 21, all of which are fixed to the bracket 1. Optionally, the three guide rods 21 are arranged linearly to allow the side strip to stagger around the guide rods 21, thereby facilitating the tensioning of the side strip. In addition, among these three guide rods 21, the guide rod 21 located at the uppermost point of the side strip conveyor can be used to place the side strip. For example, the side strip is wound into a roll, and a hole is left at the central axis of the rolled side strip. The uppermost guide rod 21 of the side strip conveyor is inserted into the hole left at the central axis of the rolled side strip to limit the roll of side strip and facilitate the release of the rolled side strip. When the rolled side strip is released, the rolled side strip rotates around the axis of the uppermost guide rod 21.

[0035] Of course, the unwinding assembly 2 may also include an unwinding roller, which is not shown in the accompanying drawings. The unwinding roller is located upstream of the guide rod 21 and is mounted on the frame. The unwinding roller and the frame are rotatable relative to each other, and the side strip is wound onto the unwinding roller to form a roll of side strip. In this embodiment, the three guide rods 21 mentioned above are all used for the side strip to pass over, so as to provide tension to the side strip.

[0036] In practical use, the unwinding wheel may or may not be powered. When the unwinding wheel is not powered, the conveying of the side strip on the guide rod 21 and on the guide device 4 mainly relies on external force. By continuously sewing the side strip onto the mattress, the mattress pulls the side strip out of the unwinding wheel, thus achieving the unwinding effect. When the unwinding wheel is powered, the unwinding of the side strip can still be carried out in the same way as when the unwinding wheel is not powered. When it is necessary to rewind the side strip, the powered unwinding wheel can rewind the side strip by rotating.

[0037] The guide device 4 guides the two sides of the side strip to be folded so that the two sides of the side strip across its width can be sewn onto the mattress fabric and side panels. In some embodiments, the guide device 4 includes a first guide block 41 with a guide channel 410 extending through it. The cross-section of the guide channel 410 is U-shaped, and the included angle between the two straight sides of the U-shaped guide channel 410 is α. The angle α gradually decreases from the input port to the output port of the guide channel 410. The side strip can enter through the input port of the guide channel 410 and exit through the output port of the guide channel 410, thus folding the side strip. The U-shape includes two straight sides and one curved side, with the curved side located between the two straight sides. In use, the side strip output from the feeding assembly 2 is inserted into the input port of the guide channel 410 and then exits from the output port of the guide channel 410. Since the cross-section of the guide channel 410 gradually changes from upstream to downstream, the two sides of the side strip width are folded under the guidance of the guide channel 410.

[0038] To guide the side strip from the feeding assembly 2 into the input port of the guide channel 410, in some embodiments, the guiding device 4 further includes two or more guide rollers 42, all of which are disposed on the movable part of the sliding mechanism 3. The guide rollers 42 are used to guide the side strip. This structure is simple and easy to set up. The guide rollers 42 are used to guide the side strip into the guide channel 410 in the first guide block 41.

[0039] Optionally, two guide rollers 42 are used. The side strip output from the feeding assembly 2 first wraps around the more upstream guide roller 42 of the two guide rollers 42, and then wraps around the remaining guide roller 42 to adjust the conveying direction of the side strip, so that the side strip can enter the input port of the guide channel 410 along the extension direction of the guide channel 410.

[0040] To facilitate the guidance of the side strip, in some embodiments, the movable part of the sliding mechanism 3 reciprocates in the left-right direction, all the guide rollers 42 extend vertically, and the U-shaped opening of the guide channel 410 faces forward. This structure is simple and easy to set up.

[0041] To ensure the second guide block 43, in some embodiments, the guiding device 4 further includes a second guide block 43. The second guide block 43 has a through-hole U-shaped channel 430. The second guide block 43 is located downstream of the side strip conveyor of the first guide block 41. The side strip extending from the guide channel 410 enters the inlet of the U-shaped channel 430, and the U-shaped opening in the U-shaped channel 430 faces the same direction as the U-shaped opening of the guide channel 410. This structure is simple and easy to set up. The U-shaped channel 430 ensures that the shape of the side strip matches the side rail and fabric of the mattress to be sewn, maintaining the shape of the side strip before it is sewn onto the mattress.

[0042] In practical use, the second guide block 43 is provided with a chamfer 431, which is located on one side of the downstream end of the second guide block 43. For example, when the length of the second guide block 43 is set in the left-right direction, the chamfer 431 is located on the front or rear side of the downstream end of the second guide block 43. In the attached figure, the chamfer 431 is located on the rear side of the downstream end of the second guide block 43. The chamfer 431 extends into the U-shaped channel 430, so that the side strip can extend out at the chamfer 431. The second guide block 43 is provided with a second groove 432, which is located on the surface of the second guide block 43 where the output port of the U-shaped channel 430 is located. The length of the second groove 432 extends in the front-back direction and passes through the second guide block 43, so that after the side strip is output in the U-shaped channel 430, it is turned by the chamfer 431, thereby causing the side strip to fold in the opposite direction. At the same time, the second groove 432 makes it easier for the second guide block 43 to be close to the connection between the mattress fabric and the side panel.

[0043] The sliding mechanism 3 is used to drive the guide device 4 to slide. In some embodiments, the sliding mechanism 3 includes a slide rail 32, a pushing device 31, and a slider 33. The slide rail 32 is mounted on the bracket 1, and the slider 33 is mounted on the slide rail 32. The slider 33 and the slide rail 32 are slidable relative to each other. The guide device 4 is mounted on the slide rail 32. In use, the pushing device 31 drives the slider 33 to move along the slide rail 32. Optionally, the slide rail 32 extends along the distance between the external mattress and the first guide rod 21, so that during the sliding process of the slider 33, the guide device 4 on the slider 33 moves closer to the mattress while simultaneously moving away from the feeding assembly 2, thereby allowing the guide device 4 to pull out the edge band on the feeding assembly 2; conversely, while moving away from the external mattress, the guide device 4 moves closer to the feeding assembly 2.

[0044] In actual use, the guide roller 42 is mounted on the slider 33 of the sliding mechanism 3.

[0045] The slitting mechanism 5 is used to slit the side strip. In some embodiments, the slitting mechanism 5 includes a blade 52 and a first cylinder 51. The first cylinder 51 is mounted on the support 1, with one end hinged to the support 1 and the other end hinged to the blade 52. The blade 52 is connected to the support 1 via a rotating shaft 53 and is located downstream of the side strip conveyor of the guide device 4. In use, the first cylinder 51 drives the blade 52 to swing, and the blade 52 slits the side strip in the slitting space.

[0046] In actual use, the bracket 1 is provided with a first groove 11, and the space above the first groove 11 is a cutting space. The blade 52 can be inserted into the first groove 11, while the edge strip is located above the first groove 11 to ensure that the blade 52 can cut the edge strip thoroughly.

[0047] To provide a certain preload force to the rotating shaft 53, in some embodiments, the rotating shaft 53 is provided with a flange 55, and a spring 54 is provided between the flange 55 and the bracket 1. The spring 54 is sleeved on the rotating shaft 53, and its two ends abut against the flange 55 and the bracket 1, respectively. This structure is simple and easy to install. The two ends of the spring 54 abut against the flange 55 and the bracket 1, respectively, thereby providing a certain preload force to the rotating shaft 53. This prevents the rotating shaft 53 from loosening and allows relative rotation between the rotating shaft 53 and the bracket 1.

[0048] The following examples, using some of the aforementioned embodiments, illustrate the principle of the mattress edge band slitting structure of this invention. Along the upstream to downstream direction of the edge band conveyor, three guide rods 21 are first arranged. The upstream guide rod 21 can be inserted into the center of the rolled edge band. The edge band unwound from the roll wraps around the next two guide rods 21 to tension the edge band, preventing it from loosening. Downstream of the three guide rods 21 are two guide rollers 42, both mounted on sliders 33. The edge band wound from the downstream guide rod 21 successively wraps around the two guide rollers. In actual use, to facilitate edge band winding, the three guide rods 21 and the two guide rollers 42 are arranged in a front-to-back direction. Downstream of the two guide rollers 42 is a slide rail 32, on which a slider 33 is mounted. The slider 33 is pushed by a pusher device 31, allowing it to slide back and forth on the slide rail 32. The slider 33 is located downstream of the guide roller 42. A first guide block 41 and a second guide block 43 are sequentially arranged on the slider 33 from upstream to downstream of the side strip conveyor. To improve space utilization, the first guide block 41 and the second guide block 43 are arranged in a left-right direction, with the first guide block 41 positioned to the right of the second guide block 43. After the side strip on the downstream guide roller 42 passes over the guide roller 42, it inserts into the input port of the guide channel 410 in the first guide block 41 and then extends out from the output port of the guide channel 410. The side strip extending from the output port of the guide channel 410 inserts into the U-shaped channel 430 in the second guide block 43 and extends out from the U-shaped channel 430, further guiding the side strip folded by the guide channel 410 on the first guide block 41, ensuring that the shape of the side strip matches the mattress fabric and the sewing angle of the side panels. The blade 52 in the slitting mechanism 5 is located downstream of the second guide block 43. The blade 52 is driven by the first cylinder 51 in the slitting mechanism 5 to cut the edge tape output from the second guide block 43. At the start of sewing, the first end of the edge tape is sewn onto the fabric and side panels of the mattress. As the edge tape is continuously sewn onto the mattress, the edge tape on the feeding assembly 2 is continuously pulled out. After sewing is completed, the edge tape needs to be slit. The connection between the edge tape and the mattress can be maintained through sewing. The pusher device 31 drives the slider 33 to slide, causing the slider 33 to move to the right, i.e., to move upstream of the edge tape conveyor, thus moving the second guide block 43 away from the mattress.As the second guide block 43 moves away from the mattress, the sewn connection between the side strip and the mattress overcomes the friction between the side strip and the inner wall of the U-shaped channel 430 on the second guide block 43, and also overcomes the friction between the side strip and the inner wall of the guide channel 410 on the first guide block 41. This allows more side strip to extend from the left side of the second guide block 43. At this time, the second guide block 43 is located upstream of the cutting space, with the extended side strip positioned within the cutting space. The side strip is then cut by the cutting mechanism 5. After the side strip is cut, the pusher device 31 drives the slider 33 to move towards the mattress, i.e., away from the first guide rod 21. This utilizes the friction between the inner wall of the guide channel 410 on the first guide block 41 and the friction between the side strip and the inner wall of the U-shaped channel 430 on the second guide block 43 to pull out the side strip from the feeding assembly 2, while simultaneously keeping the side strip within the guide channel 410 and the U-shaped channel 430. In this way, there is no need to feed the side strip into the guide channel 410 and the U-shaped channel 430 again, making it very convenient to use.

[0049] The present invention also provides a mattress sewing machine, including the slitting structure in any of the above embodiments. Since the mattress edge tape slitting structure has already been described above, those skilled in the art should understand this in conjunction with the accompanying drawings; therefore, further description of the mattress edge tape slitting structure is not required here.

[0050] like Figure 7 As shown, the present invention also provides a method for sewing mattress edge tape using the above-mentioned mattress sewing machine, which includes the following steps:

[0051] Step 1: Pass the side strip through the feeding assembly 2 and the guide device 4 in sequence, and then sew the side strip to the mattress to connect the side of the mattress and the fabric until a certain length 'a' is left unsewn to maintain the sewing connection between the side strip and the mattress.

[0052] For example, the side strip is first placed on the unwinding assembly. In some embodiments, the rolled side strip can be placed on the unwinding wheel first, and then the front end of the side strip is pulled out from the rolled side strip, so that the front end of the side strip wraps around the guide rod 21. After the side strip passes over the guide rod 21, the side strip enters the guide device 4 and then exits from the guide device 4. After the side strip passes through the guide device 4, it is sewn onto the mattress, so that the side rails and the fabric of the mattress are fixedly connected by the side strip. Due to the limitations of the location of the cutting mechanism 5, in order to cut the side strip in subsequent steps so that the side strip is adapted to the length or width of the mattress and to reduce the waste of side strip material, a certain length 'a' is left unsewn. After the subsequent cutting steps, the unsewn length 'a' is then added.

[0053] Step 2: The sliding mechanism 3 drives the guide device 4 to move away from the mattress, so that the guide device 4 moves to the upstream of the cutting mechanism 5, and the cutting mechanism 5 cuts the edge strip so that the length of the edge strip from the cut point to the sewing point to the mattress is b, where b is greater than or equal to a.

[0054] The edge band is cut so that the length of the edge band from the cut point to the point where it is sewn onto the mattress is 'b', where 'b' is greater than or equal to 'a'. This allows the remaining unsewn portion of the mattress to be sewn completely. Ideally, 'b' should be equal to 'a' to avoid wasting edge band material. If 'b' is greater than 'a', it is preferable that 'b' is slightly greater than 'a' to reduce the amount of excess edge band that needs to be cut further. Of course, if 'b' is slightly greater than 'a' and does not affect the normal use of the mattress, further cutting may not be necessary.

[0055] Step 3: Sew the side strip of length b, which is cut to the edge where it is sewn to the mattress, to the unsewn part of the mattress of length a, to connect the side panel and the fabric of the mattress.

[0056] Step 3 allows for the addition of stitching at length 'a' of the mattress that has not yet been sewn, ensuring a secure connection between the mattress side panels and the mattress fabric.

[0057] Step 4: The sliding mechanism 3 drives the guide device 4 to move away from the feeding assembly 2, causing the guide device 4 to pull out the edge tape on the feeding assembly 2. The setup in step 4 allows the guide device 4 to pull out the edge tape on the feeding assembly 2, so that the fabric and side panels of the next mattress or the back of the mattress can be sewn. There is no need to manually re-thread the edge tape onto the guide device 4, which is very convenient to use.

[0058] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A mattress edge band slitting structure, comprising a support frame (1), characterized in that, It also includes a feeding assembly (2), a sliding mechanism (3), a guiding device (4), and a cutting mechanism (5); the feeding assembly (2) is mounted on the support (1), and the feeding assembly (2) is used to guide and store the side strip; the sliding mechanism (3) is mounted on the support (1); the guiding device (4) is used to guide the side strip, so that after the side strip is inserted from the input port of the guiding device (4), the side strip extending from the output port of the guiding device (4) forms a folded edge, and the guiding device (4) is mounted on the movable part of the sliding mechanism (3). The device (4) is located downstream of the side conveyor of the feeding assembly (2). The sliding mechanism (3) drives the guide device (4) to slide back and forth along the direction of approaching or moving away from the feeding assembly (2). The guide device (4) can drive the side conveyor on the guide device (4) to move back and forth. The cutting mechanism (5) is located on the support (1). The support (1) is provided with a cutting space. The cutting mechanism (5) is used to cut the side conveyor in the cutting space. When the sliding mechanism (3) drives the guide device (4) to move towards the feeding assembly (2) to the side conveyor, the device (4) is positioned downstream of the side conveyor of the feeding assembly (2). At the end of the stroke, the slitting space is located downstream of the guide device (4), and the side strip of the output port on the guide device (4) is located in the slitting space; the guide device (4) includes a first guide block (41), and a guide channel (410) is provided on the first guide block (41) through the first guide block (41). The cross-section of the guide channel (410) is set in a U-shape, and the included angle between the two straight sides of the U-shaped guide channel (410) is α. The α gradually moves from the input port to the output port of the guide channel (410). The tape gradually shrinks; the side strip can enter from the input port of the guide channel (410) and exit from the output port of the guide channel (410), so that the side strip is folded; the guide device (4) also includes two or more guide rollers (42), all of which are arranged on the movable part of the sliding mechanism (3), and the guide rollers (42) are used to guide the side strip; the movable part of the sliding mechanism (3) reciprocates in the left and right direction, all of which are extended vertically, and the U-shaped opening of the guide channel (410) faces forward;The guiding device (4) further includes a second guide block (43), on which a U-shaped channel (430) is formed. The second guide block (43) is located downstream of the side belt conveyor of the first guide block (41). The side belt extending from the guide channel (410) enters the input port of the U-shaped channel (430). The U-shaped opening in the U-shaped channel (430) faces the same direction as the U-shaped opening in the guide channel (410). A chamfer (431) is provided on one side of the downstream end of the second guide block (43). A second groove (432) is provided on the second guide block (43), which is located on the surface of the second guide block (43) where the output port of the U-shaped channel (430) is located. The length of the second groove (432) extends in the front-back direction and passes through the second guide block (43), so that after the side strip is output in the U-shaped channel (430), it is turned by the chamfer (431), thereby causing the side strip to fold in the opposite direction.

2. The mattress edge band slitting structure according to claim 1, characterized in that, The feeding assembly (2) includes multiple guide rods (21), which are fixed on the bracket (1) respectively. The guide rods (21) are used for the side strip winding.

3. The mattress edge band slitting structure according to claim 1, characterized in that, The sliding mechanism (3) includes a slide rail (32), a pushing device (31) and a slider (33). The slide rail (32) is mounted on the bracket (1), and the slider (33) is mounted on the slide rail (32). The slider (33) and the slide rail (32) can slide relative to each other. The guiding device (4) is mounted on the slide rail (32).

4. The mattress edge band slitting structure according to claim 1, characterized in that, The cutting mechanism (5) includes a blade (52) and a first cylinder (51). The first cylinder (51) is mounted on the bracket (1). One end of the first cylinder (51) is hinged to the bracket (1), and the other end of the first cylinder (51) is hinged to the blade (52). The blade (52) is connected to the bracket (1) via a rotating shaft (53). The blade (52) is located downstream of the side belt conveyor of the guide device (4).

5. The mattress edge band slitting structure according to claim 4, characterized in that, The rotating shaft (53) is provided with a flange (55), and a spring (54) is provided between the flange (55) and the bracket (1). The spring (54) is sleeved on the rotating shaft (53), and the two ends of the spring (54) abut against the flange (55) and the bracket (1) respectively.

6. A mattress sewing machine, characterized in that, Includes the slitting structure as described in any one of claims 1-5.

7. A method for sewing mattress edge tape using a mattress sewing machine as described in claim 6, characterized in that, Includes the following steps: Step 1: Pass the side strip through the feeding assembly (2) and the guide device (4) in sequence, and then sew the side strip to the mattress to connect the side of the mattress and the fabric until a certain distance length a is left unsewn to maintain the sewn connection between the side strip and the mattress. Step 2, the sliding mechanism (3) drives the guide device (4) to move away from the mattress, so that the guide device (4) moves to the upstream of the cutting mechanism (5), and the cutting mechanism (5) cuts the edge strip so that the length of the edge strip from the cut point to the sewing point to the mattress is b, where b is greater than or equal to a; Step 3: Sew the side strip of length b, which is cut to the edge where it is sewn to the mattress, to the unsewn part of the mattress of length a, to connect the side panel and the fabric of the mattress. Step 4: The sliding mechanism (3) drives the guide device (4) to move away from the feeding assembly (2), so that the guide device (4) pulls out the side strip on the feeding assembly (2).

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