Edge surrounding equipment for mattress processing

Abstract

The invention relates to the technical field of mattress edge surrounding, in particular to mattress processing edge surrounding equipment. Comprising a base and supporting legs on the lower surface of the base. A rectangular ring-shaped track is arranged in the side direction of the base; the number of the rails is two. The track is movably connected with the sewing machine head; a groove is formed in the upper surface of the base; longitudinal grooves are formed in the large opposite groove walls of the groove. The two longitudinal grooves are connected with a longitudinal strip in a sliding manner; according to the edge surrounding device, the center base is driven to do rectangular annular track movement in the groove, so that the supporting plate can drive the edge of the mattress to move to the corresponding corner position of the base before the sewing machine head turns, and then the edge surrounding device can surround the edges of the mattresses of different specifications; due to the fact that the mattress and the supporting plate do not move in the edge surrounding process, the edge surrounding quality of mattresses of different specifications is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mattress edge processing, in particular to a mattress edge processing device. Background Art

[0002] Mattress production is a process involving many meticulous steps, including a key process - edge banding, which has a significant impact on the overall appearance and durability of the mattress. The edge banding process mainly involves sewing the two main fabric surfaces of the mattress and the edge fabric around the mattress tightly together with a special narrow and long cloth tape (edge ​​band). This process not only ensures the firm bonding of the mattress fabric, but also strengthens the edge support of the mattress, making it more stable and reducing the loosening and deformation of the fabric during use.

[0003] With the development of the mattress manufacturing industry, the automation level of the edge taping process is getting higher and higher. Using edge taping machines for edge taping work has greatly improved production efficiency and product consistency compared to traditional manual sewing. Edge taping machines can keep the stitching uniform and tight, reduce the scrap rate in production, and reduce the labor intensity of workers. The use of edge taping machines has transformed the production of mattresses from manual intensive to mechanized and automated, improving the production efficiency and product quality of the entire industry.

[0004] Existing edge-seaming machines mainly include two working modes. The first mode is that the mattress moves and the sewing machine head does not move. The linear transmission component controls the linear motion of the mattress to achieve linear edge-seaming. When the mattress is sewn to the corner position, the rotating component is used to control the mattress to rotate 90 degrees around the corner of the mattress, and continue to sew linearly, so as to achieve the edge of the four sides and the corner of the mattress. Although this mode has its own advantages, it requires a larger working space to operate, has certain requirements on the production site area, and the rotation of the mattress around the corner may cause the fabric to be pulled or wrinkled during the sewing process, affecting the quality of the edge; therefore, the second mode is derived. The second working mode is that the mattress does not move, but the sewing machine head moves. In this mode, the sewing machine head moves around the rectangular track, so that the sewing machine head sews around the edge of the mattress to complete the mattress edge process. This mattress edge method has a small footprint and is suitable for production environments with limited space. In addition, since the mattress does not produce relative movement with the bottom support plate, wrinkles or damage to the fabric can be avoided, thereby ensuring the quality of the mattress edge. However, due to the limitation of the track, this edge-sealing method makes the edge-sealing machine only suitable for one specification of mattress edges. Mattress edges of other specifications need to be purchased separately, resulting in higher production costs. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a mattress edge processing equipment. The present invention drives the center seat to move in a rectangular circular trajectory in the groove, so that the support plate can drive the edge of the mattress to move to the corresponding corner position of the base before the sewing machine head turns, thereby enabling the edge equipment to realize the edge processing of mattresses of different specifications. Since the mattress and the support plate do not move during the edge processing, the edge quality of mattresses of different specifications is improved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a mattress processing edge equipment described in the present invention includes a base and a support foot on the lower surface of the base; a rectangular ring-shaped track is arranged on the side of the base; there are two tracks; the track is movably connected to the sewing machine head; a groove is arranged on the upper surface of the base; a longitudinal groove is arranged on the groove wall with a larger groove; two longitudinal grooves are slidably connected to the longitudinal bars; a longitudinal screw is rotatably connected in one of the longitudinal grooves; the longitudinal screw passes through the end of the longitudinal bar and is threadedly connected to the longitudinal bar; the longitudinal screw is driven by a longitudinal motor; a transverse groove is arranged on the groove wall with a smaller groove; two transverse grooves are slidably connected to the transverse bars; a transverse screw is rotatably connected in one of the transverse grooves; the transverse screw passes through the end of the transverse bar and is threadedly connected to the transverse bar; the transverse screw is driven by a transverse motor; the transverse bars and the longitudinal bars are staggered in the vertical direction and pass through the center seat together; the transverse bars and the longitudinal bars are both slidably connected to the center seat; the upper surface of the center seat is embedded with a telescopic cylinder; the upper surface of the telescopic cylinder is fixedly connected to a support plate; the specification of the support plate is smaller than the base.

[0007] Preferably, the four side walls of the support plate are provided with telescopic grooves; the telescopic strip is slidably connected in the telescopic groove; the end of the telescopic strip close to the center seat is connected to the bottom of the telescopic groove by a first spring; the end of the telescopic strip away from the center seat is fixedly connected to the clamping plate; four driving grooves are arranged through the upper and lower parts of the support plate; the four driving grooves are located on the four sides of the center seat and close to the center seat; the groove wall of the driving groove close to the telescopic groove is connected to the telescopic groove through a pull hole; the driving strip is slidably connected in the driving groove up and down; the upper end of the driving strip extends out of the driving groove in the initial state, and the lower end of the driving strip is connected to the pull rope; the other end of the pull rope passes through the pull hole and is connected to the end of the telescopic strip close to the center seat.

[0008] Preferably, the upper ends of the four driving bars are commonly connected to a bearing plate; the specifications of the bearing plate are adapted to the support plate; the downward movement of the bearing plate can drive the multiple driving bars to pull the telescopic bar to move closer to the center seat.

[0009] Preferably, the pull rope in the telescopic groove is located on the inner side of the corresponding first spring; the pull hole is trumpet-shaped; and the diameter of the pull hole is arranged to increase as it approaches the center seat.

[0010] Preferably, a receiving groove is provided at a corner position of one end of the driving bar away from the center seat; a rotating groove is correspondingly provided on the wall of the receiving groove; two rotating grooves on the wall of the receiving groove are connected to a rotating rod for rotation together; one end of the pull rope is fixedly connected to the outer wall of the rotating rod; a threaded hole is penetrated at a lower position of one of the rotating grooves in the wall of the receiving groove; a bolt is threadedly connected in the threaded hole.

[0011] Preferably, another rotating groove of the receiving groove wall is rotatably connected to the rotating rod through a coil spring; the winding force of the coil spring is smaller than the elastic force of the first spring; and the outer wall of the rotating rod in contact with the bolt is in an outer hexagonal shape.

[0012] Preferably, an active groove is provided on the upper surface of the carrying plate; the bottom of the active groove passes through the carrying plate and extends into one of the driving strips; the active groove is horizontally slidably connected to the active strip; the side of the active strip facing away from the center of the carrying plate is connected to the active groove wall by a second spring; an insert block is provided at an upper position on a side of the active strip facing the center of the carrying plate; a first guide surface is obliquely provided at the lower end of the insert block; an upper end of the insert block extends out of the active groove; the driving strip is connected to the active groove through a slot on the side facing the center of the carrying plate; a plurality of the slots are evenly distributed in the vertical direction; a blocking block is slidably connected in the slot; a plurality of the blocking blocks are fixedly connected to the active strip; a rectangular groove is provided at a corresponding position of the driving groove wall and one of the slots; a rectangular block is slidably connected in the rectangular groove; one end of the rectangular block is connected to the bottom of the rectangular groove by a third spring; the other end of the rectangular block is obliquely provided with a second guide surface upwardly toward the slot; the other end of the rectangular block can be stuck in the slot.

[0013] Preferably, a guide groove is provided on the upper surface of the carrier plate; the bottom of the guide groove passes through the carrier plate and extends into one of the driving strips; the guide bar is slidably connected in the guide groove; the lower end of the guide bar is connected to the bottom of the guide groove by a fourth spring; the upper end of the guide bar and the upper end of the insert block are jointly fixedly connected to the top plate.

[0014] Preferably, a top groove is provided on the upper surface of the bearing plate; the bottom of the top groove is connected with the guide groove and the movable groove; the top plate can move downward to enter the top groove for avoidance.

[0015] Preferably, an extension groove is provided on the upper surface of the clamping plate; an extension plate is slidably connected in the extension groove; the lower end of the extension plate is connected to the bottom of the extension groove through a fifth spring; and the upper end of the extension plate is arranged in an arc shape.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention drives the center seat to move in a rectangular circular track in the groove, so that the support plate can drive the edge of the mattress to move to the corresponding corner position of the base before the sewing machine head turns, thereby enabling the edge-binding device to realize edge-binding of mattresses of different specifications. Since the mattress and the support plate do not move during the edge-binding process, the edge-binding quality of mattresses of different specifications is improved.

[0017] 2. The present invention places the mattress on a load-bearing plate to drive the four clamping plates to contract, thereby enabling mattresses of different specifications to be clamped, and making it less likely for the mattress to shift during the movement of the center seat, making the edge-wrapping process of the mattress more stable and improving the edge-wrapping quality; in addition, by adjusting the position of the clamping plate from the center seat in the initial state, more specifications of mattresses can be clamped within a limited downward distance of the load-bearing plate, thereby improving the application range of the edge-wrapping equipment.

[0018] 3. The third spring in the present invention pushes the other end of the rectangular block to snap into the corresponding slot, thereby realizing one-way locking of the driving bar. In this way, when the center seat drives the support plate and the load-bearing plate to move in a rectangular track, the mattress will not bump up and down with the load-bearing plate, thereby making the horizontal height of the mattress more stable during the edge-wrapping process, thereby further improving the edge-wrapping quality of the mattress. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is a three-dimensional diagram of the base in the present invention; Figure 3 This is a bottom perspective view of the support plate in the present invention; Figure 4 yes Figure 3 The enlarged view of point A in the middle; Figure 5 is a cross-sectional view of the present invention; Figure 6 yes Figure 5 The enlarged view of point B in the middle; Figure 7 yes Figure 5 Enlarged view of point C in the middle; Figure 8 It is a structural schematic diagram of the coil spring in the present invention.

[0021] In the figure: base 1, support leg 11, first horizontal side 111, first vertical side 112, second horizontal side 113, second vertical side 114, track 12, groove 13, vertical groove 14, vertical bar 15, vertical screw 16, vertical motor 161, horizontal groove 17, horizontal bar 18, horizontal screw 19, horizontal motor 191, sewing machine head 2, center seat 3, telescopic cylinder 31, support plate 4, telescopic groove 41, telescopic bar 42, first spring 43, drive groove 44, pull hole 45, rectangular groove 46, rectangular Block 47, third spring 48, second guide surface 49, clamping plate 5, extension groove 51, extension plate 52, fifth spring 53, drive bar 6, pull rope 61, storage groove 62, rotating groove 63, rotating rod 64, threaded hole 65, bolt 66, coil spring 67, bearing plate 7, movable groove 71, card slot 72, guide groove 73, guide bar 74, fourth spring 75, top plate 76, top groove 77, movable bar 8, second spring 81, plug block 82, first guide surface 83, blocking block 84. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] like Figures 1 to 8 As shown, the present invention includes the following embodiments: Embodiment 1: A mattress edge processing device, comprising a base 1 and a support leg 11 on the lower surface of the base 1; the base 1 is laterally provided with a rectangular ring-shaped track 12; the track 12 is two; the track 12 is movably connected to a sewing machine head 2; the upper surface of the base 1 is provided with a groove 13; the larger relative groove wall of the groove 13 is provided with a longitudinal groove 14; the two longitudinal grooves 14 are slidably connected to a longitudinal bar 15 together; one of the longitudinal grooves 14 is rotatably connected to a longitudinal screw 16; the longitudinal screw 16 passes through the end of the longitudinal bar 15 and is threadedly connected to the longitudinal bar 15; the longitudinal screw 16 is driven by a longitudinal motor 161; The smaller relative groove wall of the groove 13 is provided with a transverse groove 17; the two transverse grooves 17 are slidably connected to the transverse bar 18 together; a transverse screw 19 is rotatably connected in one of the transverse grooves 17; the transverse screw 19 passes through the end of the transverse bar 18 and is threadedly connected to the transverse bar 18; the transverse screw 19 is driven by a transverse motor 191; the transverse bar 18 and the longitudinal bar 15 are staggered in the vertical direction and pass through the center seat 3 together; the transverse bar 18 and the longitudinal bar 15 are both slidably connected to the center seat 3; the upper surface of the center seat 3 is embedded with a telescopic cylinder 31; the upper surface of the telescopic cylinder 31 is fixedly connected to the support plate 4; the support plate 4 is smaller in size than the base 1.

[0024] Specifically, after the staff puts the rectangular ring-shaped side fabric on the mattress, the staff places the mattress on the support plate 4. The specification of the support plate 4 is much smaller than that of the base 1. The support plate 4 is located at the center of the lower surface of the mattress. The edge of the support plate 4 is parallel to the edge of the corresponding base 1. Then, after the main fabric is placed on the upper surface of the mattress, the yarn and the edge tape are loaded on the sewing machine head 2 to complete the preparation work before the mattress is sewn. The telescopic cylinder 31 will drive the support plate 4 to move upward. During the upward movement of the support plate 4, the mattress will be driven upward so that the upper surface of the mattress is flush with the sewing position of the sewing machine head 2. For the convenience of description, the longer edge of the base 1 is named as the longitudinal edge, and the narrower edge of the base 1 is named as the transverse edge. Figure 1 and Figure 2 As shown, the four edges of the base 1 are the first transverse side 111, the first longitudinal side 112, the second transverse side 113 and the second longitudinal side 114. In the initial state, the sewing machine head 2 is located around the first transverse side 111, and the longitudinal motor 161 drives the longitudinal screw 16 to rotate. During the rotation of the longitudinal screw 16, the longitudinal strip 15 is driven to slide in the longitudinal groove 14 through the thread on the outer wall. The length direction of the longitudinal groove 14 is consistent with the length direction of the longitudinal side. In this way, when the longitudinal screw 16 rotates, the longitudinal strip 15 is moved along the longitudinal groove 14 close to the first transverse side 111. 11 movement, the longitudinal strip 15 will drive the center seat 3 to move close to the first transverse edge 111 during the movement, the lower surface of the center seat 3 will contact and support the bottom of the groove 13, the center seat 3 will slide along the length direction of the transverse strip 18 during the movement close to the first transverse edge 111, the transverse strip 18 and the center seat 3 will slide, the center seat 3 will drive the support plate 4 to move close to the first transverse edge 111 during the movement close to the first transverse edge 111, the support plate 4 will drive the narrow edge of the mattress close to the first transverse edge 111, and move to the sewing position of the sewing machine head 2; Then the staff starts the sewing machine head 2 to move along the track 12. The sewing machine head 2 will move along the length direction of the first horizontal side 111 and close to the first longitudinal side 112. In the process of sewing the edge of the mattress close to the first horizontal side 111, the horizontal motor 191 will drive the horizontal screw 19 to rotate. In the process of the horizontal screw 19 rotating, the horizontal bar 18 will be driven to move along the horizontal groove 17 close to the first longitudinal side 112. In the process of the horizontal bar 18 approaching the first longitudinal side 112, the center seat 3 will be driven to slide along the length direction of the longitudinal bar 15. The center seat 3 will drive the support plate 4 and the upper surface of the mattress to move close to the first longitudinal side 112. The speed of movement of the mattress is less than the speed of movement of the sewing machine head 2 along the track 12. The differential speed of the two matches the sewing speed until the mattress moves to the intersection of the first horizontal side 111 and the first longitudinal side 112, that is, the mattress moves to the corner position of the base 1, so that the sewing machine head 2 can smoothly move along The track 12 transitions from the first transverse side 111 to the first longitudinal side 112, and the sewing machine head 2 approaches the second transverse side 113 while the first longitudinal side 112 continues to sew the edge of the mattress, and the longitudinal motor 161 rotates to drive the longitudinal screw 16 to rotate, and the longitudinal screw 16 drives the longitudinal strip 15 and the center seat 3 to approach the second transverse side 113 until the corresponding corner of the mattress moves to the intersection of the first longitudinal side 112 and the second transverse side 113. In this way, the sewing machine head 2 can smoothly transition from the first longitudinal side 112 to the second transverse side 113 along the track 12, and the sewing machine head 2 will approach the second longitudinal side 114 while the second transverse side 113 continues to sew the edge of the mattress, and the transverse motor 191 rotates to drive the transverse screw 19 to rotate, and the rotation of the transverse screw 19 will drive the transverse strip 18 and the center seat 3 to approach the second longitudinal side 114 until the corresponding corner of the mattress moves to the intersection of the second transverse side 113 and the second longitudinal side 114. In this way, the sewing machine head 2 can smoothly transition from the second transverse side 113 to the second longitudinal side 114 along the track 12. When the sewing machine head 2 continues to sew the edge of the mattress at the second longitudinal side 114, it will approach the first transverse side 111. The longitudinal motor 161 rotates the longitudinal screw 16, and the rotation of the longitudinal screw 16 will drive the longitudinal strip 15 and the center seat 3 to approach the first transverse side 111 until the corresponding corner of the mattress moves to the intersection of the second longitudinal side 114 and the first transverse side 111. In this way, the sewing machine head 2 can smoothly transition from the second longitudinal side 114 to the first transverse side 111 along the track 12, and after the sewing machine head 2 completes the whole circle of sewing, the edge of the upper surface of the mattress is surrounded. After the corresponding edge bands and yarns are cut, the mattress with the upper edge of the finished edge is lifted up, turned over, and then placed back on the upper surface of the support plate 4. After placing another main fabric, the above-mentioned sewing machine head 2 is repeated to complete the edge processing of the mattress after turning over. Finally, after the edge bands and yarns are cut, the mattress with the entire edge is removed from the upper surface of the support plate 4. The present invention drives the center seat 3 to move in a rectangular circular trajectory in the groove 13, so that the support plate 4 can drive the edge of the mattress to move to the corresponding corner position of the base 1 before the sewing machine head 2 turns, thereby enabling the edge-binding device to realize edge-binding of mattresses of different specifications. Since the mattress and the support plate 4 do not move during the edge-binding process, the edge-binding quality of mattresses of different specifications is improved.

[0025] Embodiment 2: The four side walls of the support plate 4 are all provided with telescopic grooves 41; the telescopic strip 42 is slidably connected in the telescopic groove 41; the end of the telescopic strip 42 close to the center seat 3 is connected to the bottom of the telescopic groove 41 through a first spring 43; the end of the telescopic strip 42 away from the center seat 3 is fixedly connected to the clamping plate 5; the support plate 4 is provided with four driving grooves 44 from top to bottom; the four driving grooves 44 are located on the four sides of the center seat 3 and close to the center seat 3; the groove wall of the driving groove 44 close to the telescopic groove 41 is connected to the telescopic groove 41 through a pull hole 45; the driving strip 6 is slidably connected to the driving groove 44 up and down; the upper end of the driving strip 6 extends out of the driving groove 44 in the initial state, and the lower end of the driving strip 6 is connected to the pull rope 61; the other end of the pull rope 61 passes through the pull hole 45 and is connected to the end of the telescopic strip 42 close to the center seat 3.

[0026] The upper ends of the four driving bars 6 are connected to a bearing plate 7 ; the specifications of the bearing plate 7 are adapted to the support plate 4 ; the downward movement of the bearing plate 7 can drive the multiple driving bars 6 to pull the telescopic bar 42 to move closer to the center seat 3 .

[0027] The pull rope 61 located in the telescopic groove 41 is located on the inner side of the corresponding first spring 43 ; the pull hole 45 is trumpet-shaped; and the diameter of the pull hole 45 increases as it approaches the center seat 3 .

[0028] In the initial state, the center seat 3 is located at the center of the groove 13, and the center seat 3 will drive the support plate 4 to be located at the center of the base 1. Then, the mattress is covered with the rectangular ring-shaped side fabric, and then the mattress is placed on the upper surface of the supporting plate 7. The mattress will transfer gravity to the supporting plate 7. The supporting plate 7 will move closer to the supporting plate 4 under the pressure of the mattress. During the downward movement of the supporting plate 7, the four driving bars 6 will be driven to move downward. During the downward movement of the driving bars 6, the driving bars 6 will slide along their respective driving grooves 44. During the downward movement of the driving bars 6, the pull rope 61 will be pulled. Under the pull of the driving bars 6, the pull rope 61 will move along the pulling hole 45 and pull the telescopic bar 42. The telescopic bar 4 2 slides along the corresponding telescopic groove 41 under the pulling of the pull rope 61. The elastic force of the corresponding first spring 43 is overcome during the movement of the telescopic strip 42 approaching the center seat 3. The first spring 43 is sleeved on the outside of the pull rope 61. The tightened pull rope 61 guides the first spring 43 to prevent the first spring 43 from bending. As the telescopic strip 42 moves toward the center seat 3, the telescopic strip 42 drives the clamping plate 5 to move toward the center seat 3. The four clamping plates 5 can clamp the four sides of the mattress during the movement of the four clamping plates 5 toward the center seat 3. Since the clamping plates 5 have a certain length, the mattress can be placed straight during the clamping of the four clamping plates 5. After the mattress is clamped by the clamping plate 5, the telescopic cylinder 31 will extend and drive the support plate 4 to move upward. During the upward movement of the support plate 4, the load-bearing plate 7 and the mattress will be driven upward until the upper edge height of the mattress is the same as the sewing height of the sewing machine head 2; after the staff covers the main fabric on the upper surface of the mattress, they control the longitudinal motor 161 and the transverse motor 191 to cooperate with each other to realize the movement of the mattress, and the sewing machine head 2 starts the edge work; after completing the edge work of the mattress, the staff will control the center seat 3 to move to the center of the groove 13 again. The groove 13 is located at the center of the upper surface of the base 1, so the center seat 3 is located at the center of the base 1, and the support plate 4 and the load-bearing plate 7 will move upward. The mattress is moved to the center of the base 1, and the staff will lift the mattress upward. During the upward movement of the mattress, it will be separated from the supporting plate 7. After the supporting plate 7 loses the pressure of the mattress, the first spring 43 will push the respective telescopic bars 42 away from the center seat 3. During the process of the telescopic bars 42 moving away from the center seat 3, the pull rope 61 will be pulled to move in the pull hole 45. After the pull rope 61 is pulled by the telescopic bars 42, it will drive the driving bar 6 to move upward in the driving groove 44. During the upward movement of the driving bar 6, it will drive the supporting plate 7 to move upward. The four clamping plates 5 are driven by their respective telescopic bars 42 to move away from the center seat 3 to release the clamping and limiting of the mattress. Then the staff can directly remove the mattress. In this embodiment, the mattress is placed on the load-bearing plate 7 to drive the four clamping plates 5 to contract, so that mattresses of different specifications can be clamped and limited, and the mattress is not easily displaced during the movement of the center seat 3, making the mattress more stable during the edge surrounding process and improving the edge surrounding quality.

[0029] Embodiment 3: A receiving groove 62 is provided at a corner position where one end of the driving bar 6 is away from the center seat 3; a rotating groove 63 is correspondingly provided on the groove wall of the receiving groove 62; the two rotating grooves 63 on the groove wall of the receiving groove 62 are connected to a rotating rod 64 for rotation together; one end of the pull rope 61 is fixedly connected to the outer wall of the rotating rod 64; a threaded hole 65 is penetrated at a lower position of one of the rotating grooves 63 on the groove wall of the receiving groove 62; a bolt 66 is threadedly connected to the threaded hole 65.

[0030] Another rotating groove 63 of the groove wall of the receiving groove 62 is rotatably connected to the rotating rod 64 through a coil spring 67; the winding force of the coil spring 67 is smaller than the elastic force of the first spring 43; the outer wall of the rotating rod 64 contacting the bolt 66 is an outer hexagonal shape.

[0031] Before use, the staff controls the extension of the telescopic cylinder 31. After the extension of the telescopic cylinder 31, the support plate 4 will be lifted to expose the groove 13. When the groove 13 is exposed, the staff reaches under the support plate 4 with their hands and reversely twists the bolt 66. The bolt 66 rotates in the threaded hole 65 and disengages from the outer wall of the rotating rod 64 when twisted in the reverse direction, so that the rotating rod 64 is unlocked. Then, the clamping plate 5 is pressed to move close to the center seat 3. The clamping plate 5 will drive the telescopic strip 42 to overcome the corresponding first spring 43 in the telescopic groove 41 to move. When the telescopic strip 42 approaches the center seat 3, the pull rope 61 will relax, and the coil spring 67 will drive the rotating rod 64 to rotate. The rotation of the rotating rod 64 can reel in one end of the pull rope 61. The closer the clamping plate 5 is to the center seat 3, the more the pull rope 61 will be reeled in, so that the size of the mattress subsequently clamped by the clamping plate 5 will be smaller, and vice versa. After the rotating rod 64 completes the winding of the pull rope 61 and makes the pull rope 61 tight, the bolt 66 is screwed forward, and the bolt 66 rotates in the threaded hole 65 and approaches the rotating rod 64. The head of the bolt 66 will be pressed against the outer wall of the rotating rod 64, and the rotating rod 64 is locked by friction. In order to improve the locking effect of the bolt 66 on the rotating rod 64, the outer wall of the rotating rod 64 that contacts the bolt 66 is set to an outer hexagonal shape, so that the rotating rod 64 cannot rotate again after the bolt 66 contacts and locks. In this way, the adjustment process of the initial position of the clamping plate 5 is completed, and finally the support plate 4 can be lowered by the telescopic cylinder 31; This embodiment adjusts the position of the clamping plate 5 from the center seat 3 in the initial state, so that mattresses of more specifications can be clamped under the limited downward movement distance of the supporting plate 7, thereby improving the application range of the edge surrounding device.

[0032] Embodiment 4: The upper surface of the carrier plate 7 is provided with a movable groove 71; the bottom of the movable groove 71 passes through the carrier plate 7 and extends into one of the driving bars 6; the movable groove 71 is horizontally slidably connected to the movable bar 8; the side of the movable bar 8 facing away from the center of the carrier plate 7 is connected to the groove wall of the movable groove 71 through a second spring 81; the upper position of the side of the movable bar 8 facing the center of the carrier plate 7 is provided with an insert block 82; the lower end of the insert block 82 is obliquely provided with a first guide surface 83; the upper end of the insert block 82 extends out of the movable groove 71; the side of the driving bar 6 facing the center of the carrier plate 7 is connected to the movable groove 71 The movable groove 71 is connected through the card slot 72; the multiple card slots 72 are evenly distributed in the vertical direction; the card slots 72 are slidably connected to the blocking blocks 84; the multiple blocking blocks 84 are fixedly connected to the movable bar 8; the groove wall of the driving groove 44 is provided with a rectangular groove 46 at a position corresponding to one of the card slots 72; the rectangular block 47 is slidably connected in the rectangular groove 46; one end of the rectangular block 47 is connected to the bottom of the rectangular groove 46 through a third spring 48; the other end of the rectangular block 47 is provided with a second guide surface 49 inclined upward toward the card slot 72; the other end of the rectangular block 47 can be inserted into the card slot 72.

[0033] A guide groove 73 is provided on the upper surface of the supporting plate 7; the bottom of the guide groove 73 passes through the supporting plate 7 and extends into one of the driving bars 6; a guide bar 74 is slidably connected in the guide groove 73; the lower end of the guide bar 74 is connected to the bottom of the guide groove 73 by a fourth spring 75; the upper end of the guide bar 74 and the upper end of the insert block 82 are fixedly connected to the top plate 76.

[0034] The upper surface of the bearing plate 7 is provided with a top groove 77 ; the bottom of the top groove 77 is connected with the guide groove 73 and the movable groove 71 ; the top plate 76 can move downward and enter the top groove 77 for avoidance.

[0035] When the staff puts the mattress on the upper surface of the supporting plate 7, the center of the mattress will squeeze the top plate 76. Under the action of the gravity of the mattress, the top plate 76 will move along the guide strip 74 in the guide groove 73 to overcome the fourth spring 75. During the downward movement of the top plate 76, the plug block 82 will be driven to insert into the movable groove 71. The plug block 82 will move on the side of the movable strip 8 away from the second spring 81. The first guide surface 83 is inclined at the lower end of the plug block 82, so that the plug block 82 can smoothly enter the movable groove 71. During the process of the plug block 82 entering the movable groove 71, the movable strip 8 will be squeezed. The movable strip 8 will overcome the third spring 48 and slide along the movable groove 71 under the squeezing of the plug block 82. The movable strip 8 will drive the blocking block 84 to move out of the slot 72. The other end of the rectangular block 47 will be stuck in the corresponding slot 72 under the elastic force of the third spring 48, so that one of the driving strips 6 is unidirectionally locked in the driving slot 44. After the mattress transfers gravity to the bearing plate 7, the bearing plate 7 will drive the four driving bars 6 to move downward, so that the four clamping plates 5 converge and clamp toward the mattress. The clamping of the clamping plates 5 can be understood as limiting, and there is no large clamping force to cause deformation of the mattress. During the downward movement of the bearing plate 7, the driving bar 6 will be driven to move in the driving groove 44, so that the driving bar 6 drives the corresponding clamping groove 72 to stagger with the rectangular groove 46, and the second guide surface 49 at the other end of the rectangular block 47 overcomes the third spring 48 under the pressure of the corresponding clamping groove 72 and retracts into the rectangular groove 46 for avoidance, until the driving bar 6 moves down to the limit position, and the third spring 48 pushes the other end of the rectangular block 47 to snap into the corresponding clamping groove 72, and the unidirectional locking of the driving bar 6 is realized again. In this way, during the process of the center seat 3 driving the support plate 4 and the bearing plate 7 to move in a rectangular track, since the bearing plate 7 is unidirectionally locked, the mattress will not be bumped up and down with the bearing plate 7, thereby making the mattress more stable during the edge process, thereby further improving the edge quality of the mattress; The second spring 81 pushes the movable bar 8 to slide in the movable groove 71, and the movable bar 8 moves the blocking block 84 into the card slot 72 to block the card slot 72, and the blocking block 84 squeezes the rectangular block 47 in the card slot 72, and the rectangular block 47 returns to the rectangular groove 46 to avoid, so that one of the driving bars 6 is unlocked in the driving groove 44. In this way, the first spring 43 can push the telescopic bar 42 away from the center of the support plate 4, and the four clamping plates 5 are away from the center of the support plate 4, so as to prepare for the next mattress clamping.

[0036] Embodiment 5: The upper surface of the clamping plate 5 is provided with an extension groove 51; an extension plate 52 is slidably connected in the extension groove 51; the lower end of the extension plate 52 is connected to the bottom of the extension groove 51 through a fifth spring 53; the upper end of the extension plate 52 is arranged in an arc shape.

[0037] An extension groove 51 is provided on the upper surface of the clamping plate 5, and the side of the extension groove 51 facing the center of the supporting plate 7 is connected to the clamping plate 5, so as to keep the clamping plate 5 flush with the inner side of the extension plate 52. The extension plate 52 is wedge-shaped when viewed from above, so that the extension plate 52 is more stable in the extension groove 51. The extension plate 52 can extend toward the top of the clamping plate 5, so that the clamping plate 5 can clamp and limit mattresses of different thicknesses. When the sewing machine head 2 passes through the top of the extension plate 52, the top arc of the extension plate 52 will be squeezed. After the top of the extension plate 52 is pressed, it can enter the extension groove 51 for avoidance, so that the setting of the extension plate 52 will not affect the movement of the sewing machine head 2.

[0038] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0039] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A mattress edge processing device, comprising a base and legs on the lower surface of the base; a rectangular track is arranged on the side of the base; the track is movably connected to a sewing machine head; characterized in that: The upper surface of the base is provided with a groove; the groove wall with a larger groove is provided with a longitudinal groove; two of the longitudinal grooves are slidably connected to the longitudinal bars; one of the longitudinal grooves is rotatably connected to the longitudinal screw; the longitudinal screw passes through the end of the longitudinal bar and is threadedly connected to the longitudinal bar; the longitudinal screw is driven by a longitudinal motor; the groove wall with a smaller groove is provided with a transverse groove; two of the transverse grooves are slidably connected to the transverse bars; one of the transverse grooves is rotatably connected to the transverse screw; the transverse screw passes through the end of the transverse bar and is threadedly connected to the transverse bar; the transverse screw is driven by a transverse motor; the transverse bars and the longitudinal bars are staggered in the vertical direction and pass through the center seat together; the upper surface of the center seat is embedded with a telescopic cylinder; the upper surface of the telescopic cylinder is fixedly connected to the support plate.

2. The mattress edge processing equipment according to claim 1, characterized in that: The four side walls of the support plate are all provided with telescopic grooves; the telescopic strip is slidably connected in the telescopic groove; the end of the telescopic strip close to the center seat is connected to the bottom of the telescopic groove by a first spring; the end of the telescopic strip away from the center seat is fixedly connected to the clamping plate; four driving grooves are arranged through the upper and lower parts of the support plate; the four driving grooves are located on the four sides of the center seat and close to the center seat; the groove wall of the driving groove close to the telescopic groove is connected to the telescopic groove through a pulling hole; the driving strip is slidably connected in the driving groove up and down; the upper end of the driving strip extends out of the driving groove in the initial state, and the lower end of the driving strip is connected to the pull rope; the other end of the pull rope passes through the pulling hole and is connected to the end of the telescopic strip close to the center seat.

3. The mattress edge processing equipment according to claim 2, characterized in that: The upper ends of the four driving strips are connected to a bearing plate; the specifications of the bearing plate are adapted to the support plate; the downward movement of the bearing plate can drive the multiple driving strips to pull the telescopic strips to move closer to the center seat.

4. The mattress edge processing equipment according to claim 2, characterized in that: The pull rope in the telescopic groove is located on the inner side of the corresponding first spring; the pull hole is trumpet-shaped; and the diameter of the pull hole increases as it approaches the center seat.

5. The mattress edge processing equipment according to claim 2, characterized in that: A storage groove is provided at a corner position of one end of the driving bar away from the center seat; a rotating groove is correspondingly provided on the wall of the storage groove; two rotating grooves on the wall of the storage groove are connected to the rotating rod for rotation together; one end of the pull rope is fixedly connected to the outer wall of the rotating rod; a threaded hole is penetrated at the lower position of one of the rotating grooves in the wall of the storage groove; a bolt is threaded in the threaded hole.

6. The mattress edge processing equipment according to claim 5, characterized in that: Another rotating groove of the receiving groove wall is rotatably connected to the rotating rod through a coil spring; the winding force of the coil spring is smaller than the elastic force of the first spring; the outer wall of the rotating rod in contact with the bolt is in an outer hexagonal shape.

7. The mattress edge processing equipment according to claim 3, characterized in that: The upper surface of the carrying plate is provided with an active groove; the bottom of the active groove passes through the carrying plate and extends into one of the driving strips; the active groove is horizontally slidably connected to the active strip; the side of the active strip facing away from the center of the carrying plate is connected to the active groove wall by a second spring; the active strip is provided with an insert block at an upper position on a side facing the center of the carrying plate; the insert block is inclined at a lower end and a first guide surface is arranged; the insert block extends out of the active groove at an upper end; the driving strip is connected to the active groove through a slot on a side facing the center of the carrying plate; a plurality of the slots are evenly distributed in the vertical direction; the slots are slidably connected to the blocking block; a plurality of the blocking blocks are fixedly connected to the active strip; a rectangular groove is provided at a corresponding position of the driving groove wall and one of the slots; a rectangular block is slidably connected to the rectangular groove; one end of the rectangular block is connected to the bottom of the rectangular groove by a third spring; the other end of the rectangular block is inclined upward toward the slot and a second guide surface is arranged; the other end of the rectangular block can be stuck in the slot.

8. The mattress edge processing equipment according to claim 7, characterized in that: A guide groove is provided on the upper surface of the carrier plate; the bottom of the guide groove penetrates the carrier plate and extends into one of the driving strips; a guide bar is slidably connected in the guide groove; the lower end of the guide bar is connected to the bottom of the guide groove by a fourth spring; the upper end of the guide bar and the upper end of the insert block are fixedly connected to the top plate together.

9. The mattress edge processing equipment according to claim 8, characterized in that: The upper surface of the bearing plate is provided with a top groove; the bottom of the top groove is connected with the guide groove and the movable groove; the top plate can move downward to enter the top groove for avoidance.

10. The mattress edge processing equipment according to claim 2, characterized in that: The upper surface of the clamping plate is provided with an extension groove; the extension plate is slidably connected in the extension groove; the lower end of the extension plate is connected to the bottom of the extension groove through a fifth spring; the upper end of the extension plate is arranged in an arc shape.

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