A hem sewing machine

Abstract

The present invention discloses a hem sewing machine, comprising a frame equipped with a feeding mechanism, a discharging mechanism, a receiving mechanism, a folding mechanism, and a receiving mechanism. The feeding mechanism is located below the discharging mechanism, and fabric outputted by the feeding mechanism is input into the discharging mechanism. The fabric is pulled out of the discharging mechanism to a set length, cut, and placed at the receiving mechanism. The cut fabric is folded by the folding mechanism, moved to a sewing station for sewing, and finally received by the receiving mechanism. The present invention fully automates fabric feeding, pulling, cutting, folding, sewing, and receiving, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of clothing processing equipment, in particular to a hem sewing machine. Background Art

[0002] The utility model patent with patent application number 201821704683.9 discloses a knitted fabric stretching machine, comprising a frame arranged on a spreading platform, a first transmission roller rotatably mounted on the frame, and two sets of edge-shifting devices installed on the frame, each set of edge-shifting devices comprising a support plate mounted on the frame and two pairs of edge-shifting mechanisms spaced apart and moving in opposite directions on the support plate, the edge-shifting mechanism comprising a first pulley rotatably mounted on the support plate, a second pulley rotatably mounted on the support plate, a transmission belt sleeved on the first pulley and the second pulley, a power assembly mounted on the support plate and connected to the first pulley, the conveying surface of the transmission belt contacts the edge of the fabric, and the conveying surface of the transmission belt is higher than the roller surface of the first transmission roller. The knitted fabric stretching machine workstation disclosed in the patent has certain defects, such as the length of the fabric transmitted to the spreading platform is often not accurate enough, the fabric is not fixed during cutting, resulting in uneven cutting, etc. Summary of the Invention

[0003] In view of the above-mentioned existing technical status, the present invention provides a hem sewing machine to solve the above-mentioned problems.

[0004] The technical solution adopted by the present invention to solve the above technical problems is: a hem sewing machine includes a frame, and the frame is provided with a feeding mechanism, a discharging mechanism, a receiving mechanism, a folding mechanism and a receiving mechanism; the feeding mechanism is located below the discharging mechanism, and the cloth output by the feeding mechanism is input into the discharging mechanism, and the cloth of a set length is pulled out by the discharging mechanism and cut and placed at the receiving mechanism, and the cut cloth is folded by the folding mechanism and moved to the sewing place for sewing, and finally received by the receiving mechanism.

[0005] In order to optimize the above technical solution, the present invention also includes the following improved technical solution.

[0006] The above-mentioned discharging mechanism includes a left mounting plate and a right mounting plate that can move forward and backward; a first connecting plate and a second connecting plate are fixed between the left mounting plate and the right mounting plate; the second connecting plate is installed with a rotatable fourth roller, and the first connecting plate is installed with a sixth motor for driving the fourth roller to rotate and transport the cloth; a rotating pressing shaft is provided between the left mounting plate and the right mounting plate, and a pressing plate for pressing the cloth is fixed on the pressing shaft; the first connecting plate is installed with a pressing cylinder for driving the pressing shaft to rotate.

[0007] A first cross bar is fixed between the left mounting plate and the right mounting plate. The first cross bar is provided with a cutter motor mounting seat that can slide left and right. The cutter motor is fixed on the cutter motor mounting seat, and the output shaft of the cutter motor is equipped with a cutter. The first cross bar is provided with a second motor for driving the cutter motor mounting seat to move.

[0008] The above-mentioned material receiving mechanism includes a fifth connecting plate installed on the frame, and the fifth connecting plate is provided with a third slide rail, and the first material receiving plate and the second material receiving plate are slidably installed on the third slide rail; a set of clamping devices are respectively installed on the outer side of the first material receiving plate and the outer side of the second material receiving plate; the first material receiving plate and the second material receiving plate are located in two different planes, and the first material receiving plate and the second material receiving plate can overlap and approach each other to adjust the spacing between the two sets of clamping devices.

[0009] The above-mentioned folding mechanism includes a second cross bar, which is provided with a first folding synchronous wheel, a second folding synchronous wheel and an eighth synchronous belt, as well as a folding motor for driving the eighth synchronous belt to rotate; the second cross bar is provided with a left clamping device and a right clamping device that can move left and right; the left clamping device and the right clamping device are respectively connected to the two sections of the eighth synchronous belt.

[0010] The second crossbar is provided with a first folding synchronous wheel mounting seat, which is connected to the folding motor via the folding motor mounting seat; and the output shaft of the folding motor is connected to the first folding synchronous wheel.

[0011] The above-mentioned second cross bar is fixedly connected to the seventh connecting plate, and the bottom surface of the seventh connecting plate is installed with the fourth slide rail; the left side of the fourth slide rail is provided with a sliding eighth slider, and the right side is provided with a sliding fifth slider and a twelfth slider; the left clamping device is installed on the eighth slider, and the right clamping device is installed on the fifth slider.

[0012] The above-mentioned right clamping device includes a third mounting plate, a first cylinder, a first clamping plate and a first lower clamping plate; the first lower clamping plate is fixed to the bottom of the third mounting plate; the first cylinder body is fixed to the middle of the third mounting plate, and the piston rod of the first cylinder is connected to the first clamping plate through the fourth right clamping connecting block, which can drive the first clamping plate to move up and down to cooperate with the first lower clamping plate to clamp the material; the third mounting plate is provided with a sixth slide rail and a seventh slide block for guiding the first clamping plate to rise and fall.

[0013] The above-mentioned material receiving mechanism includes a material receiving cylinder and a material receiving motor installed on the frame; the piston rod of the material receiving cylinder is connected to the material beating plate, and the material beating plate is rotatably installed on the frame. A material discharge box is provided under the material beating plate, and a finished product discharge plate that can be raised and lowered and driven by the material receiving motor is provided in the material discharge box.

[0014] The above-mentioned feeding mechanism includes a right side plate and a left side plate fixed on both sides of the frame, a first roller and a second roller that can rotate are provided between the right side plate and the left side plate, and the right side plate is equipped with a feeding motor for driving the first roller to rotate; a first sensor for detecting the output amount of the cloth is provided below the cloth output between the first roller and the second roller; the cloth output between the first roller and the second roller is transported to the discharging mechanism via the first feeding shaft and the second feeding shaft.

[0015] Compared to existing technologies, the hem sewing machine of the present invention enables automatic fabric feeding. When the fabric is exhausted, the feed mechanism facilitates manual replacement of the fabric drum. The discharging mechanism pulls out a set length of fabric and cuts the fabric and places it at the receiving mechanism. The folding mechanism folds the cut fabric and moves it to the sewing station for sewing, where it is finally collected by the receiving mechanism. This hem sewing machine fully automates fabric feeding, pulling, cutting, folding, sewing, and collecting, improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0017] Figure 2 It is a structural diagram of the feeding mechanism.

[0018] Figure 3 yes Figure 2 Exploded diagram.

[0019] Figure 4 It is a structural diagram of the discharging mechanism.

[0020] Figure 5 yes Figure 4 Exploded diagram.

[0021] Figure 6 It is a structural diagram of the installation mechanism.

[0022] Figure 7 yes Figure 6 Exploded diagram of the material receiving mechanism.

[0023] Figure 8 It is a structural diagram of the folding mechanism.

[0024] Figure 9 yes Figure 8 Exploded diagram.

[0025] Figure 10 It is a structural diagram of the material receiving mechanism. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

[0027] Figures 1 to 10Shown is a schematic structural diagram of the present invention.

[0028] The accompanying drawings are marked as follows: frame 1, right side plate 2, feeding motor 3, first gear 4, second gear 5, first roller 6, second roller 7, left side plate 8, bearing mounting seat 9, fixed plate 10, pressing plate 11, first feeding shaft 12, second feeding shaft 13, first motor 14, pressing cylinder 15, pressing cylinder mounting seat 16, left mounting plate 17, right mounting plate 18, first pressing connecting block 19, fixed sleeve 20, second pressing connecting block 21, feeding plate 22, sixth motor 23, sixth motor mounting seat 24, first feeding synchronous wheel 25, second feeding synchronous wheel 26, first synchronous belt 27, fourth roller 28, third roller 29, second bearing mounting seat 30, third bearing mounting seat 31, second connecting plate 32, feeding connecting Block 33, feed shaft 34, handle 35, first connecting plate 36, cutter 37, cutter motor 38, cutter motor mounting seat 39, third connecting plate 40, first belt connecting block 41, second motor 42, second synchronous belt 43, first slider 44, second connecting bar 45, first slide rail 46, first cross bar 47, press shaft 48, fourth connecting plate 49, second sensor 50, third motor 51, third motor mounting seat 52, third synchronous belt 53, first drive shaft 54, third synchronous wheel 55, fourth synchronous belt 56, mounting plate connecting seat 57, second belt connecting block 58, second slider 59, second slide rail 60, fifth connecting plate 61, fourth motor 62, motor connecting plate 63, fifth synchronous wheel 64, fifth synchronous wheel mounting Seat 65, fifth synchronous belt 66, sixth synchronous wheel 67, sixth synchronous wheel mounting seat 68, third slide rail 69, third slider 70, first material receiving plate 71, second material receiving plate 72, first mounting plate 73, press drive rod 75, clamping cylinder 76, third clamping connecting block 77, pressure rod 78, fourth belt connecting block 79, fourth clamping connecting block 80, fifth motor 81, fifth motor mounting seat 82, sixth synchronous belt 83, seventh synchronous belt 84, second folding connecting block 85, third belt connecting block 86, fourth slider 87, folding motor 88, folding motor mounting seat 89, first folding synchronous wheel 90, eighth synchronous belt 91, second folding synchronous wheel 92, first right clamp connecting block 93, seventh connecting plate 94, fifth slider 95, The third cylinder 96, the second right clamp connecting plate 97, the second cylinder 98, the third right clamp connecting block 99, the fifth slide rail 101, the third mounting plate 102, the mounting block 103, the first lower clamping plate 104, the first cylinder 105, the fourth right clamp connecting block 106, the first clamping plate 107, the sixth slide rail 108, the seventh slider 109, the first left clamp connecting plate 110, the first left clamp connecting block 111, the fifth belt connecting block 112, the eighth slider 113, the third left clamp connecting block 114, the first left clamp mounting plate 115, the fourth cylinder 116, the second clamping plate 117, the second lower clamping plate 118, the fourth left clamp connecting block 119, the seventh slide rail 120, the ninth slider 121, the second left clamp mounting plate 122, the third left clamp mounting plate 123,The fifth cylinder 124, the fifth left clamp connecting block 125, the eighth slide rail 126, the sixth cylinder 128, the sixth left clamp mounting block 129, the pressing plate 130, the ninth slide rail 132, the semi-finished product receiving motor 133, the turbine box 134, the semi-finished product discharge plate 135, the tenth slide rail 136, the receiving motor 137, the receiving cylinder 138, the first fixed seat 139, the punching plate 140, the second fixed seat 141, the second cross bar 142, the third sensor 143, the fourth sensor 144, the tenth synchronous belt 145, the first right clamp connecting plate 146, the discharge box 147, the finished product discharge plate 148, the clamping cylinder mounting seat 149, the first folding Synchronous wheel mounting seat 150, fourth slide rail 151, twelfth slider 152, second right clamp connection block 153, second left clamp connection block 154, first cutting synchronous wheel mounting seat 155, second cutting synchronous wheel mounting seat 156, sixth belt connection block 157, induction plate 158, first connecting plate mounting hole 159, second connecting plate mounting hole 160, first crossbeam 161, second crossbeam 162, first crossbar mounting hole 163, fourth mounting plate 164, third synchronous wheel mounting seat 165, fourth synchronous wheel mounting seat 166, mounting column 167, vertical rod 168, fourth bearing mounting seat 169, and receiving cylinder mounting seat 170.

[0029] The hem sewing machine of the present invention comprises a feeding mechanism, a discharging mechanism, a cutting mechanism, a material receiving mechanism, a mounting mechanism, a folding mechanism and a material receiving mechanism.

[0030] like Figure 1 、 Figure 2 and Figure 3 As shown. The feeding mechanism includes a feeding motor 3 installed on the right side plate 2. The output shaft of the feeding motor 3 is connected to the first gear 4, and the first gear 4 is meshed with the second gear 5. The second gear 5 is fixedly connected to the right end of the first roller 6 through the fixed plate 10. The right end of the first roller 6 can also rotate through the first bearing mounting seat 9. The first bearing mounting seat 9 is installed on the right side plate 2, and the left end of the first roller 6 is installed on the left side plate 8 through the first bearing mounting seat 9. The first bearing mounting seats 9 at both ends of the second roller 7 are fixedly mounted on the left side plate 8 and the right side plate 2. When feeding, the cloth drum is placed between the first roller 6 and the second roller 7. The feeding motor 3 drives the rotation of the first roller 6, and the cloth flows out from the gap between the first roller 6 and the second roller 7.

[0031] A first sensor is installed on the frame 1 below the feed mechanism. When the fabric hangs down too much, it blocks the light signal from the first sensor. After the first sensor detects this signal, the control system controls the feed motor 3 to pause feeding and resume feeding when the fabric no longer triggers the detection signal.

[0032] The fabric passing through the gap between the first roller 6 and the second roller 7 passes sequentially along the first feed shaft 12 and the second feed shaft 13 before being placed beneath the pressure plate 11. The first feed shaft 12 is rotatably mounted on mounting posts 167 on either side of the frame 1 via fourth bearing mounts 169. A first motor 14 is mounted on mounting posts 167 of the frame 1. The output shaft of the first motor 14 is connected to a third feed synchronous pulley, which is then connected to the fourth feed synchronous pulley on the second feed shaft 13 via a tenth synchronous belt 145. The first motor 14 drives the second feed shaft 13 to rotate via the tenth synchronous belt 145, preventing the elasticity of the fabric from causing the drawn fabric to be too short.

[0033] like Figure 4 、 Figure 5 As shown. The discharging mechanism includes two pressing cylinders 15 located below the first connecting plate 36. The two pressing cylinders 15 are installed on both sides of the first connecting plate 36 through the pressing cylinder mounting seat 16, and the two ends of the first connecting plate 36 are fixedly mounted on the first connecting plate mounting holes 159 of the left mounting plate 17 and the right mounting plate 18 respectively. The piston rod of the pressing cylinder 15 is rotatably connected to one end of the first pressing connection block 19, and the other end of the first pressing connection block 19 is sleeved on the pressing shaft 48. The two ends of the pressing shaft 48 are rotatably mounted on the left mounting plate 17 and the right mounting plate 18 respectively. Five fixed sleeves 20 are sleeved on the pressing shaft 48, and the fixed sleeves 20 are fixedly connected to the clamping plate 11 through the second pressing connection block 21. The piston rod of the pressing cylinder 15 contracts, and the pressing plate 11 is driven to be tightened or loosened through the rotation of the pressing shaft 48.

[0034] One end of the fourth roller 28 is rotatably mounted on the second bearing mount 30, which is fixedly connected to the second connecting plate 32. The other end of the fourth roller 28 is fixedly connected to the first feed synchronous pulley 25, which is mounted between two third bearing mounts 31, which are fixedly connected to the second connecting plate 32. The ends of the second connecting plate 32 are fixedly mounted to the second connecting plate mounting holes 160 of the left and right mounting plates 17 and 18. The sixth motor 23 is mounted on the lower surface of the first connecting plate 36 via the sixth motor mount 24. The output shaft of the sixth motor 23 is connected to the second feed synchronous pulley 26, which is connected to the first feed synchronous pulley 25 on the fourth roller 28 via the first timing belt 27. The upper surface of the second connecting plate 32 is fixedly connected to the feed plate 22. Above the feed plate 22, a third roller 29 is provided. Both ends of the third roller 29 are connected to the feed shaft 34 via feed connection blocks 33. The ends of the feed shaft 34 are rotatably mounted on the left mounting plate 17 and the right mounting plate 18, respectively. The right end of the feed shaft 34 is connected to a handle 35. Because the third roller 29 is heavier than the feed shaft 34, gravity forces the third roller 29 downward through the slot in the middle of the feed plate 22 and onto the fourth roller 28. The handle 35 lifts the third roller 29, facilitating manual insertion of fabric. The sixth motor 23 drives the fourth roller 28, causing the third roller 29 to be pressed against it by gravity, positioning the fabric between the third and fourth rollers 29 and 28, thus enabling fabric feeding.

[0035] The cutting mechanism includes a first crossbar 47, which is mounted on the first crossbar mounting holes 163 of the left and right mounting plates 17 and 18, respectively. A first cutting synchronous wheel mounting seat 155 is mounted on one end of the first crossbar 47, and a second cutting synchronous wheel mounting seat 156 is mounted on the other end. A second motor 42 is fixedly mounted on the first cutting synchronous wheel mounting seat 155, which drives a second timing belt 43 mounted between the first and second cutting synchronous wheel mounting seats 155 and 156. A first slide rail 46 is fixedly mounted on the first crossbar 47 via a second connecting bar 45. A third connecting plate 40 is mounted on the first slider 44 on the first slide rail 46. The cutter motor 38 is mounted on the cutter motor mounting seat 39. The cutter motor mounting seat 39 is fixed to the third connecting plate 40 and connected to the second timing belt 43 via a first belt connecting block 41. The output shaft of the cutter motor 38 is equipped with a cutter 37, which is located at the fabric outlet of the dispensing mechanism. When cutting material, the cutter motor 38 is close to the right mounting plate 18. The cutter motor 38 drives the cutter 37 to rotate and cut the material. The second motor 42 drives the cutter 37 to move toward the left mounting plate 17 through the second synchronous belt 43 to cut the cloth.

[0036] The sides of the fourth connecting plate 49 are mounted on the upper ends of the first and second cutting synchronous wheel mounting bases 155 and 156, respectively. A second sensor 50 is mounted on the right side of the fourth connecting plate 49, and a sensing plate 158 is mounted on the third connecting plate 40. When the second motor 42 drives the cutter motor 38 to reset, the second sensor 50 senses the position of the sensing plate 158, thereby controlling the second motor 38 to stop.

[0037] like Figure 6 As shown. The mounting mechanism includes a frame 1, with a first crossbeam 161 and a second crossbeam 162 provided in the middle and on both sides of the frame 1, respectively. A fourth mounting plate 164 is fixedly mounted on the second crossbeam 162. The third motor 51 is mounted on the first crossbeam 161 via a third motor mounting base 52. The output end of the third motor 51 is connected to a first synchronous pulley, which is connected to the second synchronous pulley via a third synchronous belt 53. Two first drive shafts 54 are provided on either side of the second synchronous pulley. One end of the first drive shaft 54 ​​is connected to the second synchronous pulley for rotation therewith, and the other end of the first drive shaft 54 ​​is connected to the third synchronous pulley 55 for rotation therewith. The third synchronous pulley 55 is fixed to a mounting post 167 of the frame 1 via a third synchronous pulley mounting base 165. The third synchronous pulley 55 is connected to the fourth synchronous pulley via a fourth synchronous belt 56. The fourth synchronous pulley is mounted in the middle of the second crossbeam 162 via a fourth synchronous pulley mounting base 166. The fourth synchronous belt 56 on either side of the frame 1 is fixedly connected to the right and left mounting plates 18 and 17, respectively, via mounting plate connectors 57 and second belt connectors 58. The left and right mounting plates 17 and 18 are mounted on second sliders 59, respectively. The second slide rails 60 are mounted on the fourth mounting plate 164. The third motor 51, via the synchronous belt assembly, drives the left and right mounting plates 17 and 18 along the second slide rails 60, driving the dispensing mechanism forward and backward. The third motor 51 and the first motor 14 operate at the same speed, eliminating tension on the fabric.

[0038] like Figure 7 As shown. The material receiving mechanism includes a fifth connecting plate 61, which is fixedly mounted between the fourth mounting plates 164 on both sides. Two third slide rails 69 are provided on the fifth connecting plate 61, and a first material receiving plate 71 and a second material receiving plate 72 are slidably mounted on the third slide rails 69 via third sliders 70. A set of clamping devices are respectively mounted on the outer sides of the first material receiving plate 71 and the outer sides of the second material receiving plate 72. The first material receiving plate 71 and the second material receiving plate 72 are located on two different planes. The first material receiving plate 71 and the second material receiving plate 72 can approach each other and overlap, thereby adjusting the spacing between the two clamping devices to accommodate fabrics of different widths.

[0039] The clamping device includes a first mounting plate 73, a pressure rod 78 mounted on the first mounting plate 73, and a clamping cylinder 76 for driving the pressure rod 78 to press the material. A ninth synchronous wheel mounting seat 65 and a sixth synchronous wheel mounting seat 68 are mounted on either side of the bottom of the fifth connecting plate 61. A fifth synchronous belt 66 is provided between the fifth synchronous wheel 64 on the ninth synchronous wheel mounting seat 65 and the sixth synchronous wheel 67 on the sixth synchronous wheel mounting seat 68. A fourth motor 62 is mounted on the bottom of the fifth connecting plate 61 via two motor connecting plates 63. The output shaft of the fourth motor 62 is connected to the fifth synchronous wheel 64, thereby driving the fifth synchronous belt 66 to rotate.

[0040] The first mounting plate 73 is fixedly connected to the fifth synchronous belt 66 via the fourth belt connecting block 79 and the fourth clamping connecting block 80. The first mounting plates 73 of the two clamping devices are respectively connected to the two sections of the fifth synchronous belt 66. When the fifth synchronous belt 66 rotates, the two clamping devices can move closer to or farther away from each other.

[0041] The right end of the first mounting plate 73 is rotatably connected to the middle portion of the press drive rod 75. The lower end surface of the first mounting plate 73 is fixedly connected to the clamping cylinder mounting seat 149. The clamping cylinder mounting seat 149 is rotatably connected to the cylinder body of the clamping cylinder 76. The piston rod of the clamping cylinder 76 is rotatably connected to the lower end of the press drive rod 75 via a third clamping connection block 77. The upper end of the press drive rod 75 is fixedly connected to the press rod 78.

[0042] The first mounting plate 73 is fixedly mounted on the bottom of the first receiving plate 71 or the second receiving plate 72. The third slide rail 69 guides the movement of the corresponding clamping devices of the first receiving plate 71 or the second receiving plate 72. The clamping cylinder 76 drives the pressing rod 78 to rotate and fix the fabric to the first receiving plate 71 or the second receiving plate 72.

[0043] The fifth motor 81 is mounted on the first crossbeam 161 via the fifth motor mounting bracket 82. A seventh synchronous gear is mounted on the output end of the fifth motor 81, connected to the eighth synchronous gear via the sixth synchronous belt 83. A second drive shaft is mounted on either side of the eighth synchronous gear. One end of the second drive shaft is connected to the eighth synchronous gear for co-rotation, and the other end is connected to the ninth synchronous gear for co-rotation. The ninth synchronous gear is mounted on the center portion of the inner wall of the fourth mounting plate 164 via the ninth synchronous gear mounting bracket. The ninth synchronous gear is connected to the tenth synchronous gear via the seventh synchronous belt 84. The tenth synchronous gear is mounted on the fourth mounting plate 164 via the tenth synchronous gear mounting bracket. Vertical rods 168 at each end of the folding mechanism are connected to the seventh synchronous belt 84 on either side of the mounting mechanism via the second folding connecting block 85 and the third belt connecting block 86. The vertical rods 168 at each end of the folding mechanism are mounted on the fourth slider 87, which moves in conjunction with the second slide rail 60. The fifth motor 81 drives the folding mechanism forward and backward along the second slide rail 60 via the seventh synchronous belt 84.

[0044] like Figure 8 、 Figure 9 As shown, the folding mechanism includes a second crossbar 142. A first folding synchronous wheel mounting base 150 is mounted on the second crossbar 142. The first folding synchronous wheel mounting base 150 is connected to the folding motor 88 via the folding motor mounting base 89. A first folding synchronous wheel 90 is mounted on the output shaft of the folding motor 88. The first folding synchronous wheel 90 is connected to a second folding synchronous wheel 92 on the other side of the second crossbar 142 via an eighth synchronous belt 91. The folding motor 88 drives the left and right clamping devices toward or away from each other via the eighth synchronous belt 91, thereby performing the folding movement.

[0045] The second crossbar 142 is fixedly connected to the seventh connecting plate 94, and the bottom surface of the seventh connecting plate 94 is installed with a fourth slide rail 151. The right side of the fourth slide rail 151 is provided with a slidable fifth slider 95 and a twelfth slider 152, and the left side is provided with a slidable eighth slider 113.

[0046] The right clamping device includes a third mounting plate 102, a first cylinder 105, a first clamping plate 107, and a first lower clamping plate 104. The first lower clamping plate 104 is fixed to the bottom of the third mounting plate 102. The cylinder body of the first cylinder 105 is fixed to the center of the third mounting plate 102. The piston rod of the first cylinder 105 is connected to the first clamping plate 107 via the fourth right clamping connecting block 106, driving the first clamping plate 107 to move up and down to cooperate with the first lower clamping plate 104. The third mounting plate 102 is equipped with a sixth slide rail 108 and a seventh slider 109 to guide the first clamping plate 107 up and down.

[0047] A first mounting slot is defined in the center of the third mounting plate 102 for mounting the cylinder body of the first pneumatic cylinder 105. The first clamping plate 107 is connected to the seventh slider 109 on either side, and the sixth slide rail 108 is mounted in the center of the mounting block 103. Second mounting slots are defined on either side of the third mounting plate 102 to accommodate the seventh slider 109 and the sixth slide rail 108, reducing the installation volume of the third mounting plate 102 and the first clamping plate 107. The piston rod of the first pneumatic cylinder 105 extends, driving the first clamping plate 107 downward. The bottom surface of the first clamping plate 107 engages with the upper surface of the first lower clamping plate 104 to clamp the material.

[0048] The twelfth slider 152 is mounted with a second right clamp connecting plate 97, on which a second cylinder 98 is mounted. The piston rod of the second cylinder 98 is connected to the third mounting plate 102 via a third right clamp connecting block 99. The second cylinder 98 drives the entire right clamping assembly up and down along the fifth slide rail 101. The twelfth slider 152 guides the right clamping assembly along the fourth slide rail 151.

[0049] The fifth slider 95 is mounted with a second right clamp connection block 153, to which the first right clamp connection plate 146 is fixed. The first right clamp connection plate 146 is connected to a section of the eighth synchronous belt 91 via the first right clamp connection block 93 and the fifth belt connection block 112. The eighth synchronous belt 91 can drive the second right clamp connection block 153 to move along the fourth slide rail 151. The second right clamp connection block 153 is mounted with a third cylinder 96, the piston rod of which is connected to the second right clamp connection plate 97. When the eighth synchronous belt 91 drives the second right clamp connection block 153 to move, the second right clamp connection plate 97 and the right clamp assembly are synchronously moved along the fourth slide rail 151 through the third cylinder 96. The piston rod of the third cylinder 96 can drive the second right clamp connection plate 97 to move independently relative to the second right clamp connection block 153.

[0050] The piston rod of the third cylinder 96 extends, driving the right clamping device to the left, so that the distance between the right clamping device and the middle of the second crossbar 142 is the same as that between the left clamping device and the right clamping device. The piston rod of the third cylinder 96 retracts, driving the right clamping device to the right, making it easier for the sewing machine to remove the material. The piston rod of the second cylinder 98 retracts, driving the right clamping device to move up and down, folding it.

[0051] The eighth slider 113 is mounted with a second left clamp connection block 154, which is secured to the first left clamp connection plate 110. The first left clamp connection plate 110 is connected to another section of the eighth synchronous belt 91 via the first left clamp connection block 111 and the sixth belt connection block 157. The eighth synchronous belt 91 drives the second left clamp connection block 154 along the fourth slide rail 151. The second left clamp connection block 154 is mounted to the first left clamp mounting plate 115 via the third left clamp connection block 114. The eighth slider 113 guides the left clamp assembly along the fourth slide rail 151.

[0052] The left clamping device includes a fourth cylinder 116, a second clamping plate 117, a second lower clamping plate 118, and a first left clamping mounting plate 115. The second lower clamping plate 118 is fixed to the first left clamping mounting plate 115. The cylinder body of the fourth cylinder 116 is fixed to the second clamping plate 117, and the piston rod of the fourth cylinder 116 is connected to the first left clamping mounting plate 115 via a fourth left clamping connecting block 119. The second clamping plate 117 is mounted on the first left clamping mounting plate 115 so as to be movable up and down via a ninth slider 121 and a seventh slide rail 120. The fourth cylinder 116 drives the second clamping plate 117 to move along the seventh slide rail 120, so that the second clamping plate 117 cooperates with the second lower clamping plate 118 to clamp the material.

[0053] The first left clamp mounting plate 115 is fixedly connected to the third left clamp mounting plate 123. The third left clamp mounting plate 123 is mounted with a fifth air cylinder 124, the piston rod of which is connected to the fifth left clamp connecting block 125. The fifth left clamp connecting block 125 is fixedly connected to the second left clamp mounting plate 122. The fifth air cylinder 124 can drive the second left clamp mounting plate 122 to move along the eighth slide rail 126. The second left clamp mounting plate 122 is mounted with a sixth air cylinder 128, the piston rod of which is connected to the pressing plate 130 via the sixth left clamp mounting block 129. The sixth air cylinder 128 drives the pressing plate 130 to move up and down along the ninth slide rail 132 via the sixth left clamp mounting block 129, so that the pressing plate 130 is pressed against the folded portion of the fabric.

[0054] The piston rod of the fifth cylinder 124 extends to drive the second left clamp mounting plate 122 to move along the eighth slide rail 126 , and the pressure plate 130 is driven to move along the eighth slide rail 126 through the sixth cylinder 128 .

[0055] A third sensor 143 is provided on the second crossbar 142. When the right clamping device moves to the third sensor 143, the third sensor 143 senses the position information of the right clamping device and controls the folding motor 88 to stop.

[0056] like Figure 6 、 Figure 10 As shown in the figure, the material receiving mechanism includes a semi-finished product receiving device located between the material receiving mechanism and the sewing station, and a finished product receiving device located below the sewing station. The semi-finished product receiving device includes a semi-finished product receiving motor 133 mounted below. The output shaft of the semi-finished product receiving motor 133 drives the semi-finished product discharge plate 135 up and down along the tenth slide rail 136 via a turbine housing 134. When semi-finished products are needed, the fifth motor 81 drives the folding mechanism to move above the semi-finished product receiving device. The left and right clamps release the fabric, and the fabric falls onto the semi-finished product discharge plate 135.

[0057] The finished product receiving device includes a receiving cylinder 138 mounted on the frame 1 and a receiving motor 137 mounted on one side of the discharge box 147. The cylinder body of the receiving cylinder 137 is rotatably connected to the receiving cylinder mounting base 170. The receiving cylinder mounting base 170 is fixedly connected to the frame 1 via a first fixing base 139. The piston rod of the receiving cylinder 138 is connected to the punch plate 140. The lower end of the punch plate 140 is connected to the receiving shaft via a receiving connecting block. The two ends of the receiving shaft are rotatably mounted on the frame 1 via a second fixing base 141. The receiving cylinder 138 drives the punch plate 140 to move, and the punch plate 140 presses the sewn fabric down from the sewing area and into the discharge box 147. The receiving motor 137 drives the ninth synchronous belt to rotate. The ninth synchronous belt is fixedly connected to the finished product discharge plate 148 via a connecting member, driving the finished product discharge plate 148 to rise and fall.

[0058] A fourth sensor 144 is provided on the outer walls of both sides of the discharge box 147. When the cloth is put in, the light signal between the fourth sensor 144 is blocked, and the material receiving motor 137 is controlled to move, causing the finished product discharge plate 148 to descend.

[0059] Before processing, depending on the width of the fabric, the fourth motor 62, via the fifth synchronous belt 66, drives the two clamping devices toward or away from each other, moving the first and second receiving plates 71 and 72 left and right along the third slide rail 69. The fabric is pulled from the gap between the first and second rollers 6, 7, and passes through the first and second feed shafts 12, 13, and between the third and fourth rollers 29, 28, before being placed beneath the pressure plate 11. During processing, the piston rod of the pressure cylinder 15 extends, driving the pressure plate 11 to compress the fabric. The feed motor 3 then drives the first roller 6, and the first motor 14 drives the second feed shaft 13 to rotate, allowing the fabric to be fed. Simultaneously, the third motor 51 drives the dispensing mechanism forward to the desired position, depending on the desired fabric length. The piston rod of the pressure cylinder 15 then retracts, causing the pressure plate 11 to open. The third motor 51 then drives the dispensing mechanism backward for a certain distance. As the dispensing mechanism moves backward, the sixth motor 23 drives the fourth roller 28 to rotate, and the third and fourth rollers 29 and 28 feed the fabric. The fabric is placed on the first and second receiving plates 71 and 72, and two clamping devices clamp the fabric using the clamping cylinder 76. The cutter motor 38 then drives the cutter 37 to rotate, while the second motor 42 drives the cutter motor 38 to the left to cut the fabric. After cutting is complete, the third motor 51 returns the dispensing mechanism to its original position, and the second motor 42 drives the cutter motor 38 to its original position. The two clamping devices release the fabric. The fifth motor 81 drives the folding mechanism backward, clamping the fabric at both ends with the left and right clamping devices. The fifth motor 81 then drives the folding mechanism forward a certain distance. The piston rod of the third cylinder 96 then extends, driving the right clamping device to the left, while the piston rod of the second cylinder 98 retracts, driving the right clamping device upward. The folding motor 88 drives the left and right clamping devices toward each other via a synchronous belt, thus folding the fabric. The fifth motor 81 drives the folding mechanism forward to the sewing machine head. The right clamping device releases the fabric and the piston rod of the third cylinder 96 retracts, driving the right clamping device to move to the right to make way. At the same time, the sixth cylinder 128 drives the pressure plate 130 to press on the folding area. The fifth cylinder 124 drives the pressure plate 130 to move forward, pushing the fabric forward. The material taking device at the sewing machine head takes the fabric away and sends it for sewing. The fifth motor 81 drives the folding mechanism to reset, and the folding motor 88 drives the left and right clamps to move away from each other and reset. After sewing is completed, the receiving cylinder 138 drives the punching plate 140 to move, pressing the sewn fabric from the sewing area and sending it into the discharge box 147. The position of the fabric is sensed by two sensors, which will control the receiving motor 137 to lower the finished product discharge plate 148 through the synchronous belt assembly.

Claims

1. A hem sewing machine, comprising a frame (1), characterized in that: The frame (1) is provided with a feeding mechanism, a discharging mechanism, a receiving mechanism, a folding mechanism and a receiving mechanism; the feeding mechanism is located below the discharging mechanism, and the cloth output by the feeding mechanism is input into the discharging mechanism, and the cloth of a set length is pulled out by the discharging mechanism and cut and placed at the receiving mechanism, and the cut cloth is folded by the folding mechanism and moved to the sewing place for sewing, and finally received by the receiving mechanism; the discharging mechanism includes a left mounting plate (17) and a right mounting plate (18) that can move forward and backward; a first connecting plate (36) and a second connecting plate (32) are fixed between the left mounting plate (17) and the right mounting plate (18); the second connecting plate (32) is equipped with a rotatable fourth roller (28), and the first connecting plate (36) is equipped with a sixth motor (23) for driving the fourth roller (28) to rotate and transport the cloth; the left mounting plate (17) and A rotating pressing shaft (48) is provided between the right mounting plate (18), and a pressing plate (11) for pressing the cloth is fixed on the pressing shaft (48); the first connecting plate (36) is installed with a pressing cylinder (15) for driving the pressing shaft (48) to rotate; the material receiving mechanism includes a fifth connecting plate (61) installed on the frame (1), and the fifth connecting plate (61) is provided with a third slide rail (69), and the first material receiving plate (71) and the second material receiving plate (72) are slidably installed on the third slide rail (69); a set of clamping devices are respectively installed on the outer side of the first material receiving plate (71) and the outer side of the second material receiving plate (72); the first material receiving plate (71) and the second material receiving plate (72) are located in two different planes, and the first material receiving plate (71) and the second material receiving plate (72) can overlap and approach each other to adjust the spacing between the two sets of clamping devices.

2. The hem sewing machine according to claim 1, characterized in that: A first crossbar (47) is fixed between the left mounting plate (17) and the right mounting plate (18); a cutter motor mounting seat (39) capable of sliding left and right is provided on the first crossbar (47); a cutter motor (38) is fixed on the cutter motor mounting seat (39); and a cutter (37) is installed on the output shaft of the cutter motor (38); and a second motor (42) for driving the cutter motor mounting seat (39) to move is provided on the first crossbar (47).

3. The hem sewing machine according to claim 1, characterized in that: The folding mechanism includes a second crossbar (142), the second crossbar (142) is provided with a first folding synchronous wheel (90), a second folding synchronous wheel (92) and an eighth synchronous belt (91), and a folding motor (88) for driving the eighth synchronous belt (91) to rotate; the second crossbar (142) is provided with a left clamping device and a right clamping device that can move left and right; the left clamping device and the right clamping device are respectively connected to two sections of the eighth synchronous belt (91).

4. The hem sewing machine according to claim 3, characterized in that: A first folding synchronous wheel mounting seat (150) is mounted on the second crossbar (142), and the first folding synchronous wheel mounting seat (150) is connected to the folding motor (88) via the folding motor mounting seat (89); the output shaft of the folding motor (88) is connected to the first folding synchronous wheel (90).

5. The hem sewing machine according to claim 4, characterized in that: The second cross bar (142) is fixedly connected to the seventh connecting plate (94), and the bottom surface of the seventh connecting plate (94) is installed with a fourth slide rail (151); the left side of the fourth slide rail (151) is provided with a slidable eighth slider (113), and the right side is provided with a slidable fifth slider (95) and a twelfth slider (152); the left clamping device is installed on the eighth slider (113), and the right clamping device is installed on the fifth slider (95).

6. The hem sewing machine according to claim 5, characterized in that: The right clamping device comprises a third mounting plate (102), a first cylinder (105), a first clamping plate (107) and a first lower clamping plate (104); the first lower clamping plate (104) is fixed to the bottom of the third mounting plate (102); the cylinder body of the first cylinder (105) is fixed to the middle of the third mounting plate (102), and the piston rod of the first cylinder (105) is connected to the first clamping plate (107) through the fourth right clamping connecting block (106), which can drive the first clamping plate (107) to move up and down to cooperate with the first lower clamping plate (104) to clamp the material; the third mounting plate (102) is provided with a sixth slide rail (108) and a seventh slide block (109) for guiding the first clamping plate (107) to move up and down.

7. The hem sewing machine according to claim 1, characterized in that: The material receiving mechanism includes a material receiving cylinder (138) and a material receiving motor (137) installed on the frame (1); the piston rod of the material receiving cylinder (138) is connected to the material beating plate (140), and the material beating plate (140) is rotatably installed on the frame (1). A material discharge box (147) is provided below the material beating plate (140), and a finished product discharge plate (148) that can be raised and lowered and driven by the material receiving motor (137) is provided in the material discharge box (147).

8. The hem sewing machine according to claim 1, characterized in that: The feeding mechanism comprises a right side plate (2) and a left side plate (8) fixed on both sides of a frame (1); a rotatable first roller (6) and a second roller (7) are provided between the right side plate (2) and the left side plate (8); the right side plate (2) is equipped with a feeding motor (3) for driving the first roller (6) to rotate; a first sensor for detecting the output amount of the cloth is provided below the cloth output between the first roller (6) and the second roller (7); the cloth output between the first roller (6) and the second roller (7) is transported to the discharging mechanism via a first feeding shaft (12) and a second feeding shaft (13).

Images