Non-woven fabric cutting device with positioning function

Abstract

The non-woven fabric cutting device with the positioning function comprises a main machine frame, a right supporting frame is fixed to the top face of the right portion of a top plate of the main machine frame, a discharging supporting frame is fixed to the ground of the right side of the main machine frame, and a fabric winding drum is installed on the discharging supporting frame; a middle punching block and a middle punching supporting frame are fixed to the middle of the top face of a top plate of the main rack, a punching air cylinder is fixed to the middle of the top face of a top plate of the middle punching supporting frame, and the bottom end of a push rod of the punching air cylinder extends out of the bottom face of the top plate of the middle punching supporting frame and is fixedly provided with a lifting plate. The cutting length is accurately positioned, meanwhile, the cutting edge of the upper punching blade and the cutting edge of the lower punching blade can be rubbed, excessive cut materials are prevented from being attached to the cutting edge, the service life is prolonged, the replacement frequency is reduced, the cloth winding drum can be vertically placed and taken down, manual carrying operation is not needed, the manual labor amount is greatly reduced, and the production efficiency is improved. And the replacement effect and the replacement efficiency are improved.

Description

Technical Field:

[0001] The present invention relates to the technical field of fabric processing equipment, and more specifically to a non-woven fabric cutting device with a positioning function. Background Art:

[0002] Non-woven fabric cutting can be divided into laser cutting, electric cutting, vibration cutting and vertical cutting. Among them, laser cutting and vibration cutting have higher costs and can customize cutting contours. Electric cutting is suitable for long-size continuous operations, and vertical cutting is suitable for segmented cutting.

[0003] Among them, for vertical cutting, the fabric is cut by the downward movement of the cutting knife and the lower cutting knife in a shearing manner. After each cutting, there will be a certain amount of fabric cutting debris and the like sticking to the cutting edge, making the cutting edge prone to becoming dull and requiring manual replacement in a timely manner. The service life of the blade is short.

[0004] At the same time, in the existing vertical cutting, the length of the fabric is generally controlled by fabric feeding, and the accuracy of length control is poor, and the effect is not ideal.

[0005] At the same time, in the existing cutting mechanism, the fabric reel is generally installed in a side-insertion manner, and it can only be operated by manual lifting and carrying. The manual labor intensity is large, the efficiency is low, and the installation and disassembly are troublesome. Summary of the Invention:

[0006] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a non-woven fabric cutting device with a positioning function. It has accurate cutting length positioning. At the same time, it can rub the cutting edges of the upper punching blade and the lower cutting blade to prevent excessive cutting materials from adhering to the cutting edges, improve the service life, reduce the replacement frequency, and the fabric reel can be vertically placed and removed without manual handling operation, greatly reducing the manual labor intensity and improving the replacement effect and efficiency.

[0007] The solution for the present invention to solve the above technical problems is:

[0008] A non-woven fabric cutting device with a positioning function includes a main frame. The right top surface of the top plate of the main frame is fixedly provided with a right support frame. A material feeding support frame is fixedly installed on the ground on the right side of the main frame, and a fabric reel is installed on the material feeding support frame.

[0009] In the middle of the top surface of the top plate of the main frame, an intermediate punching block and an intermediate punching support frame are fixed. In the middle of the top surface of the top plate of the intermediate punching support frame, a punching cylinder is fixed. The bottom end of the push rod of the punching cylinder extends out of the bottom surface of the top plate of the intermediate punching support frame and is fixed with a lifting plate. In the middle of the bottom surface of the lifting plate, an upper punching blade extending in the front and rear directions is fixed. In the middle of the top surface of the intermediate punching block, a lower cutting through groove matching with the upper punching blade is formed. On the upper part of the right side wall of the lower cutting through groove, a side mounting groove is formed. The top end of the side mounting groove extends out of the top surface of the intermediate punching block. The lower cutting blade is located in the side mounting groove and is fixed on the inner side wall of the side mounting groove. The top surface of the lower cutting blade is flush with the top surface of the intermediate punching block. The right side wall of the upper punching blade is matched with and corresponds to the left side wall of the lower cutting blade;

[0010] On the left part of the top plate of the main frame, a grasping block is installed. The grasping block is matched with the top surface of the intermediate punching block.

[0011] A lifting block is inserted into the lower cutting through groove. The right side wall of the lifting block is closely attached to the left side wall of the lower cutting blade. On the left and right side walls of the lower end of the lifting block, extended edge parts are formed. The extended edge parts are inserted into the inner grooves formed on the left and right side walls of the lower part of the lower cutting through groove. The top surface of the extended edge parts is pressed against the top surface of the corresponding inner grooves. A plurality of reset springs are inserted into the lower part of the lower cutting through groove. The top ends of the reset springs act on the bottom surface of the lifting block, and the bottom ends act on the top surface of the top plate of the main frame.

[0012] The bottom end of the reset spring is inserted into a lower positioning block formed or fixed on the top surface of the top plate of the main frame, and the top end of the reset spring is inserted into an upper positioning block formed or fixed on the bottom surface of the lifting block. The reset spring can buffer the lifting of the lifting block.

[0013] In the middle of the intermediate punching support frame, an intermediate horizontal support plate extending in the front and rear directions is provided. The front and rear wall surfaces of the intermediate horizontal support plate are fixed on the inner side walls of the front and rear side support plates of the intermediate punching support frame. In the middle of the intermediate horizontal support plate, an intermediate through groove extending in the front and rear directions is formed. On the left and right side walls of the intermediate through groove, scraping guide plates extending in the front and rear directions are fixed. The left and right side walls of the upper punching blade are closely attached to the inner wall surfaces of the corresponding scraping guide plates. It rubs the cutting edge (blade edge) of the upper punching blade after cutting through the scraping guide plate, removes part of the adhered material on it, ensures the sharp state of its cutting edge, and reduces the replacement frequency of the tool.

[0014] A positioning adsorption and fixing block is closely attached to the right side wall of the middle punching block. The front and rear wall surfaces of the positioning adsorption and fixing block are fixed on the inner side walls of the front and rear side support plates of the middle punching support frame. An air suction cavity is formed in the middle of the positioning adsorption and fixing block. A plurality of air suction through holes are formed on the top surface of the positioning adsorption and fixing block. The air suction through holes communicate with the air suction cavity. The top surface of the positioning adsorption and fixing block is in the same plane as the top surface of the middle punching block. An air suction connecting head is fixed to the bottom surface of the positioning adsorption and fixing block, and the air suction connecting head communicates with the air suction cavity. The positioning adsorption and fixing block can adsorb and fix the conveyed fabric during cutting, improving the cutting effect.

[0015] On the front and rear top surfaces of the top plate of the main frame at the left side of the middle punching block, side fixing plates are respectively fixed. On the upper parts of the opposite wall surfaces of the two side fixing plates, horizontally moving mechanisms extending left and right are respectively installed. On the bottom surfaces of the moving blocks of the two horizontally moving mechanisms, vertical plates are respectively fixed. A horizontally extending plate extending front and rear is fixed to the bottom surfaces of the two vertical plates. In the middle of the top surface of the horizontally extending plate, a grasping cylinder is fixed. The bottom end of the push rod of the grasping cylinder extends out of the bottom surface of the horizontally extending plate and is fixed with a grasping block. A first inner cavity is formed inside the grasping block. A plurality of lower air suction through holes are formed on the bottom surface of the grasping block. The lower air suction through holes communicate with the first inner cavity. A protective elastic layer is fixed to the bottom surface of the grasping block. Adsorption through holes corresponding to and communicating with the lower air suction through holes are formed on the protective elastic layer. A left air suction connecting head is fixed to the left side wall of the grasping block, and the left air suction connecting head communicates with the first inner cavity. The grasping block can adsorb the fabric in an adsorption and fixing manner, facilitating pulling.

[0016] In the middle of the upper top plate of the feeding support frame, a lifting through groove extending front and rear is formed. In the middle of the bottom surface of the middle horizontal plate of the feeding support frame, a middle lifting cylinder is fixed. The top end of the push rod of the middle lifting cylinder extends out of the top surface of the middle horizontal plate and is fixed with a first lifting frame. At the front and rear parts in the middle of the first lifting frame, two support rollers extending front and rear are respectively movably connected through bearings. The top of the support rollers extends out of the top surface of the lifting through groove. The fabric reel to be processed is pressed against the two support rollers.

[0017] On the front top surface of the upper top plate of the feeding support frame, a front fixing plate is fixed. On the front wall surface of the front fixing plate, a first pushing cylinder is fixed. The end of the push rod of the first pushing cylinder extends out of the rear wall surface of the front fixing plate and is fixed with a front moving frame. On the rear wall surface of the vertical plate of the front moving frame, a front positioning shaft is fixed. A plurality of axially extending positioning grooves are formed on the outer side wall of the front positioning shaft. The front positioning shaft is inserted into the front end of the central hollow shaft of the fabric reel. The axially protruding strips on the inner side wall of the central hollow shaft are inserted into the corresponding positioning grooves.

[0018] Sliding blocks are fixed to both the left and right parts of the bottom surface of the front moving frame. First guide rails extending front and back are fixed to both the left and right parts of the front top surface of the upper top plate of the feeding support frame. The first guide rails are inserted into the front and back extending sliding grooves formed in the bottom surface of the corresponding sliding blocks and are matched with the sliding grooves;

[0019] A moving through groove extending front and back is formed in the middle of the rear plate body of the upper top plate of the feeding support frame. A lower connecting plate is fixed to the bottom surface of the right end of the upper top plate of the feeding support frame. Both ends of a moving screw rod extending front and back are movably connected to the lower connecting plate and the rear wall plate of the feeding support frame through bearings. An adjusting moving block is screwed onto the moving screw rod. The upper part of the adjusting moving block extends out of the top end of the moving through groove and is fixed with a rear moving frame. A rotary driving motor is fixed to the rear wall surface of the vertical plate of the rear moving frame. The output shaft of the rotary driving motor extends out of the front wall surface of the vertical plate of the rear moving frame. An axially extending rear positioning groove is formed on the outer side wall of the front part of the output shaft of the rotary driving motor. The output shaft of the rotary driving motor is inserted into the rear end of the central hollow shaft of the fabric winding roll. The axially protruding strip on the inner side wall of the central hollow shaft is inserted into the corresponding rear positioning groove;

[0020] A moving servo motor is fixed to the rear wall surface of the lower connecting plate. The output shaft of the moving servo motor is a spline shaft and is inserted into the spline hole at the rear end of the moving screw rod.

[0021] Rear guide rails extending front and back are fixed to both the left and right parts of the top surface of the rear plate body of the upper top plate of the feeding support frame. Upper guiding sliders are fixed to both the left and right parts of the bottom surface of the rear moving frame. The rear guide rails are inserted into the front and back extending lower guiding grooves formed in the bottom surface of the corresponding upper guiding sliders.

[0022] An upper guide roller is movably connected between the front and rear upper horizontal beams of the right support frame through bearings. A plurality of lower guide rollers are movably connected between the front and rear lower horizontal beams of the right support frame through bearings. Two vertical guiding blocks are fixed to the inner side wall of the right part of the front and rear lower horizontal beams of the right support frame. A vertical guiding groove is formed in the middle of the opposite wall surfaces of the two vertical guiding blocks. An adjusting block is located between the corresponding two vertical guiding blocks. Guide parts are formed in the middle of the left and right side walls of the adjusting block. The guide parts are inserted into the corresponding vertical guiding grooves. The bottom surface of the adjusting block is movably connected to a vertical adjusting screw rod through a bearing. The vertical adjusting screw rod is screwed into the vertical screw through hole on the top plate of the main frame. The bottom end of the vertical adjusting screw rod extends out of the bottom surface of the top plate of the main frame and is fixed with a rotating wheel. A locking nut is screwed onto the lower part of the vertical adjusting screw rod. The top surface of the locking nut presses against the bottom surface of the top plate of the main frame. Both ends of a tensioning roller are movably connected to the two adjusting blocks through bearings.

[0023] This feeding support frame can feed materials in a vertical feeding manner, eliminating the need for manual handling and greatly reducing the manual labor intensity.

[0024] A conveying motor is fixed on the outer side wall of the lower transverse beam at one side of the leftmost lower guide roller of the right support frame. The output shaft of the conveying motor is a spline shaft, which is inserted into the spline hole at one end of the corresponding lower guide roller;

[0025] A friction layer is formed on the outer side wall of the leftmost lower guide roller, and an upper pressure roller is arranged above it. The front and rear ends of the upper pressure roller are movably connected with rising and falling adjustment blocks through bearings. Upper support frames are fixed on the top surfaces of the left parts of the two lower transverse beams. The rising and falling adjustment blocks are inserted into the vertical through grooves in the middle parts of the corresponding upper support frames. Guide blocks are formed on the left and right side walls of the rising and falling adjustment blocks, and are inserted into the middle vertical guide grooves formed on the left and right side walls of the corresponding vertical through grooves. A vertical screw-through hole is formed in the middle of the top plate of the upper support frame. An upper adjustment screw is screwed in the vertical screw-through hole. The top end of the upper adjustment screw extends out of the top surface of the top plate of the upper support frame and is fixed with an upper rotating wheel. The bottom end of the upper adjustment screw extends out of the bottom surface of the top plate and is movably connected with the top surface of the rising and falling adjustment block through a bearing. An upper locking nut is screwed on the upper part of the upper adjustment screw. The bottom surface of the upper locking nut presses against the top surface of the top plate of the upper support frame. An upper friction layer is fixed on the outer side wall of the upper pressure roller, which corresponds to the leftmost lower guide roller up and down.

[0026] Middle positioning through grooves extending left and right are formed in the middle of the opposite wall surfaces of the two side fixing plates. Outer connecting plates are fixed on the left and right parts of the outer side walls of the two side fixing plates. The two ends of the transverse adjustment screw are movably connected to the two outer connecting plates through bearings. A transverse adjustment motor is fixed on the outer side wall of one of the outer connecting plates. The output shaft of the transverse adjustment motor is a spline shaft, which is inserted into the spline hole at one end of the transverse adjustment screw. A positioning block is screwed on the transverse adjustment screw. The inside of the positioning block is inserted into the corresponding middle positioning through groove. Self-lubricating wear-resistant layers are fixed on the top and bottom surfaces of the middle positioning through groove. The top and bottom surfaces of the positioning block are closely attached to the corresponding self-lubricating wear-resistant layers. A first proximity switch is fixed in the middle of the inner wall surface of the positioning block. The sensing end of the first proximity switch corresponds to the sensing block fixed on the left side wall of the corresponding vertical plate.

[0027] The outstanding effects of the present invention are:

[0028] 1. It has accurate cutting length positioning. At the same time, it can rub the cutting edges of the upper punching blade and the lower cutting blade to prevent excessive cutting material from adhering to the cutting edges, improve the service life, and reduce the replacement frequency;

[0029] 2. Its fabric reel can be placed or removed vertically, without manual handling operation, greatly reducing the manual labor intensity, and improving the replacement effect and efficiency. Description of the drawings:

[0030] Figure 1 It is a partial structural schematic diagram of the present invention;

[0031] Figure 2 is Figure 1 a partial enlarged view of;

[0032] Figure 3 is Figure 1 a partial enlarged view of another part of;

[0033] Figure 4 is Figure 1 a partial enlarged view of still another part of;

[0034] Figure 5 is Figure 1 a schematic diagram of the local structure at the bottom roller frame of;

[0035] Figure 6 is Figure 3 a partial enlarged view of;

[0036] Figure 7 is a schematic diagram of the local structure at the side fixed plate;

[0037] Figure 8 is a schematic diagram of the local structure at the material feeding support frame;

[0038] Figure 9 is a schematic diagram of the local structure at the bottom pushing cylinder. Specific implementation manner:

[0039] As shown in, a non-woven fabric cutting device with a positioning function includes a main frame 10. A right support frame 20 is fixed to the top surface of the right part of the top plate of the main frame 10. A material feeding support frame 30 is fixed on the ground on the right side of the main frame 10. The left side of the material feeding support frame 30 is close to the right side of the main frame body 10, and a fabric reel 100 is installed on the material feeding support frame 30; Figures 1 to 9

[0040] In the middle of the top surface of the top plate of the main frame 10, an intermediate punching block 11 and an intermediate punching support frame 12 are fixed. In the middle of the top surface of the top plate of the intermediate punching support frame 12, a punching cylinder 121 is fixed. The bottom end of the push rod of the punching cylinder 121 extends out of the bottom surface of the top plate of the intermediate punching support frame 12 and is fixed with a lifting plate 122. In the middle of the bottom surface of the lifting plate 122, a front and rear extending upper punching blade 123 is fixed. In the middle of the top surface of the intermediate punching block 11, a lower cutting through groove 111 matching the upper punching blade 123 is formed. The upper part of the right side wall of the lower cutting through groove 111 is formed with a side installation groove. The top end of the side installation groove extends out of the top surface of the intermediate punching block 11. A lower cutting blade 112 is located in the side installation groove and fixed on the inner side wall of the side installation groove. The top surface of the lower cutting blade 112 is flush with the top surface of the intermediate punching block 11. The right side wall of the upper punching blade 123 cooperates with and corresponds to the left side wall of the lower cutting blade 112;

[0041] A gripping block 40 is installed at the left part of the top plate of the main frame 10, and the gripping block 40 is matched with the top surface of the intermediate punching and cutting block 11.

[0042] Further, a lifting block 13 is inserted into the lower cutting through groove 111. The right side wall of the lifting block 13 is closely attached to the left side wall of the lower cutting blade 112. Extension edges 131 are formed on both the left and right side walls at the lower end of the lifting block 13. The extension edges 131 are inserted into the inner grooves formed on the left and right side walls at the lower part of the lower cutting through groove 111. The top surface of the extension edges 131 is pressed against the top surface of the corresponding inner grooves. A plurality of return springs 1 are inserted into the lower part of the lower cutting through groove 111. The top end of the return spring 1 acts on the bottom surface of the lifting block 13, and the bottom end acts on the top surface of the top plate of the main frame 10. The bottom end of the return spring 1 is inserted into a lower positioning block formed or fixed on the top surface of the top plate of the main frame 10, and the top end of the return spring 1 is inserted into an upper positioning block formed or fixed on the bottom surface of the lifting block 13.

[0043] A middle horizontal support plate 124 extending forward and backward is provided in the middle of the intermediate punching and cutting support frame 12. The front and rear wall surfaces of the middle horizontal support plate 124 are fixed on the inner side walls of the front and rear side support plates of the intermediate punching and cutting support frame 12. A middle through groove 125 extending forward and backward is formed in the middle of the middle horizontal support plate 124. Scraping guide plates 126 extending forward and backward are fixed on both the left and right side walls of the middle through groove 125. The left and right side walls of the upper punching and cutting blade 123 are closely attached to the inner wall surfaces of the corresponding scraping guide plates 126.

[0044] When in use, when the upper punching and cutting blade 123 descends for punching and cutting, it causes the lifting block 13 to descend. When punching and cutting, the right side wall of the upper punching and cutting blade 123 is matched with and closely attached to the left side wall of the lower cutting blade 112 to achieve cutting. After cutting is completed, the upper punching and cutting blade 123 returns. When returning, it rubs against the inner wall surface of the corresponding scraping guide plate 126, so that the cutting material adhered to the cutting edge of the upper punching and cutting blade 123 is wiped off by the corresponding scraping guide plate 126, ensuring the sharpness of the cutting edge and ensuring subsequent cutting requirements, thereby increasing the service life of the tool and reducing the replacement frequency. Similarly, after cutting is completed, the lifting block 13 returns upward through the elastic recovery of the return spring 1. When returning, the right side wall of the lifting block 13 is closely attached to the left side wall of the lower cutting blade 112, and the cutting material at its cutting edge (the upper part of the left side wall of the lower cutting blade 112) is wiped off to ensure its service life and reduce the replacement frequency.

[0045] Furthermore, a positioning adsorption and fixing block 16 is closely attached to the right side wall of the intermediate punching block 11. The front and rear wall surfaces of the positioning adsorption and fixing block 16 are fixed to the inner side walls of the front and rear side support plates of the intermediate punching support frame 12. An air suction cavity is formed in the middle of the positioning adsorption and fixing block 16. A plurality of air suction through holes 161 are formed on the top surface of the positioning adsorption and fixing block 16. The air suction through holes 161 communicate with the air suction cavity. The top surface of the positioning adsorption and fixing block 16 is in the same plane as the top surface of the intermediate punching block 11. An air suction connection head 162 is fixed to the bottom surface of the positioning adsorption and fixing block 16. The air suction connection head 162 communicates with the air suction cavity. The air suction connection head 162 can be connected to the air inlet of the electromagnetic valve of the vacuum pump of the pneumatic system through a connecting pipe to realize air suction. The vacuum pump and the electromagnetic valve are both conventional structures and will not be elaborated here.

[0046] Furthermore, a plurality of vertical guide columns 127 are fixed to the top surface of the intermediate horizontal support plate 124. The vertical guide columns 127 are inserted into corresponding vertical through holes formed in the lifting plate 122. The top ends of the vertical guide columns 127 are fixed to the top plate of the intermediate punching support frame 12. A plurality of buffer springs 128 are sleeved on the vertical guide columns 127. The top ends of the buffer springs 128 bear on the bottom surface of the lifting plate 122, and the bottom ends of the buffer springs 128 bear on the top surface of the intermediate horizontal support plate 124.

[0047] Furthermore, a guide roller 2 extending forward and backward is provided below the left part of the intermediate punching support frame 12. The front and rear ends of the guide roller 2 are movably connected to the front and rear side support plates of the intermediate punching support frame 12 through bearings. The bottom end of the guide roller 2 is close to the top surface of the intermediate punching block 11. The guide roller 2 can press against the fabric to prevent it from being conveyed upward.

[0048] Furthermore, side fixing plates 17 are fixed to the front and rear top surfaces of the top plate of the main frame 10 at the left side of the intermediate punching block 11. Horizontal moving mechanisms 60 extending left and right are installed on the upper parts of the opposite wall surfaces of the two side fixing plates 17. Vertical plates 62 are fixed to the bottom surfaces of the moving blocks 61 of the two horizontal moving mechanisms 60. A horizontally extending transverse plate 63 is fixed to the bottom surfaces of the two vertical plates 62. A grasping cylinder 64 is fixed to the middle of the top surface of the transverse plate 63. The bottom end of the push rod of the grasping cylinder 64 extends out of the bottom surface of the transverse plate 63 and is fixed with a grasping block 40. A first inner cavity is formed inside the grasping block 40. A plurality of lower adsorption through holes are formed on the bottom surface of the grasping block 40. The lower adsorption through holes communicate with the first inner cavity. A protective elastic layer 41 is fixed to the bottom surface of the grasping block 40. Adsorption through holes corresponding to and communicating with the lower adsorption through holes are formed on the protective elastic layer 41. A left air suction connection head is fixed to the left side wall of the grasping block 40. The left air suction connection head communicates with the first inner cavity. The left air suction connection head is connected to the pneumatic system through a connecting air pipe (the pneumatic system is composed of components such as a vacuum pump and a control valve connected through a connecting pipe)

[0049] Furthermore, the lateral movement mechanism 60 includes end connection plates fixed to the left and right parts of the inner upper side wall of the side fixed plate 17. Both ends of the upper lateral movement screw are movably connected to the two end connection plates through bearings. A upper movement servo motor is fixed to the outer side wall of one of the end connection plates. The output shaft of the upper movement servo motor is a spline shaft, which is inserted into the spline hole at one end of the upper lateral movement screw. The moving block 61 is screwed onto the upper lateral movement screw. The top surface of the moving block 61 is fixed with an upper sliding block. The top surfaces of the side fixed plates 17 are both fixed with upper lateral plates extending left and right. The bottom surface of the upper lateral plate is fixed with an upper lateral guide rail. The top surface of the moving block 61 is fixed with an upper guiding sliding block. The upper lateral guide rail is inserted into the sliding groove on the top surface of the corresponding upper guiding sliding block.

[0050] Vertical guiding rods are fixed to the top surfaces of the front and rear parts of the gripping block 40. The vertical guiding rods are inserted into the corresponding vertical guiding through holes on the lateral plate 63 (since the structural arrangement of the vertical guiding rods is a conventional structure, the vertical guiding rods are not shown in the drawings for the display of other components).

[0051] A lifting through groove 31 extending front and rear is formed in the middle of the upper top plate of the material discharging support frame 30. A middle lifting cylinder 32 is fixed to the middle of the bottom surface of the middle horizontal plate of the material discharging support frame 30. The top end of the push rod of the middle lifting cylinder 32 extends out of the top surface of the middle horizontal plate and is fixed with a first lifting frame 33. Two front and rear extending support rollers 34 are movably connected to the front and rear parts in the middle of the first lifting frame 33 through bearings. The top of the support roller 34 extends out of the top surface of the lifting through groove 31. The cloth roll 100 to be processed is pressed against the two support rollers 34. A plurality of lower guiding rods are fixed to the bottom surface of the first lifting frame 33. The lower guiding rods are inserted into the guide sleeves fixed to the inner side walls of the corresponding vertical guiding through holes on the middle horizontal plate. External threads are formed on the outer side walls of the lower guiding rods. An adjusting nut 9 is screwed onto the external threads of the lower guiding rods. The top surface of the adjusting nut 9 is pressed against the bottom surface of the middle horizontal plate.

[0052] Furthermore, a front fixed plate is fixed to the front top surface of the upper top plate of the material discharging support frame 30. A first pushing cylinder 35 is fixed to the front wall surface of the front fixed plate. The end of the push rod of the first pushing cylinder 35 extends out of the rear wall surface of the front fixed plate and is fixed with a front moving frame 351. A front positioning shaft 352 is fixed to the rear wall surface of the vertical plate of the front moving frame 351. A plurality of axially extending positioning grooves are formed on the outer side wall of the front positioning shaft 352. The front positioning shaft 352 is inserted into the front end of the central hollow shaft of the cloth roll 100. The axially protruding strips on the inner side wall of the central hollow shaft are inserted into the corresponding positioning grooves.

[0053] Sliding blocks are fixed to both the left and right parts of the bottom surface of the front moving frame 351. First guide rails extending forward and backward are fixed to both the left and right parts of the front top surface of the upper top plate of the material feeding support frame 30. The first guide rails are inserted into the chutes extending forward and backward formed on the bottom surface of the corresponding sliding blocks and are matched with the chutes.

[0054] A moving through slot 36 extending forward and backward is formed in the middle of the rear plate body of the upper top plate of the material feeding support frame 30. A lower connecting plate 37 is fixed to the bottom surface of the right end of the upper top plate of the material feeding support frame 30. Both ends of the moving screw rod 38 extending forward and backward are movably connected to the lower connecting plate 37 and the rear wall plate of the material feeding support frame 30 through bearings. The adjusting moving block 39 is screwed on the moving screw rod 38. The upper part of the adjusting moving block 39 extends out of the top end of the moving through slot 36 and is fixed with a rear moving frame 361. A rotary driving motor 362 is fixed to the rear wall surface of the vertical plate of the rear moving frame 361. The output shaft of the rotary driving motor 362 extends out of the front wall surface of the vertical plate of the rear moving frame 361. An axially extending rear positioning groove is formed on the outer side wall of the front part of the output shaft of the rotary driving motor 362. The output shaft of the rotary driving motor 362 is inserted into the rear end of the central hollow shaft of the fabric roll 100. The axially protruding strips on the inner side wall of the central hollow shaft are inserted into the corresponding rear positioning grooves.

[0055] A moving servo motor 371 is fixed to the rear wall surface of the lower connecting plate 37. The output shaft of the moving servo motor 371 is a spline shaft, which is inserted into the spline hole at the rear end of the moving screw rod 38. The two support rollers 34 can ensure that the central axis of the placed fabric roll 100 is in the middle vertical plane, so as to ensure that it is in the same vertical plane as the central axes of the front positioning shaft 352 and the output shaft of the rotary driving motor 362.

[0056] Furthermore, rear guide rails extending forward and backward are fixed to both the left and right parts of the top surface of the rear plate body of the upper top plate of the material feeding support frame 30. Upper guiding sliders 363 are fixed to both the left and right parts of the bottom surface of the rear moving frame 361. The rear guide rails are inserted into the lower guiding slots extending forward and backward formed on the bottom surface of the corresponding upper guiding sliders 363.

[0057] Furthermore, an upper guide roller is movably connected between the front and rear upper cross beams of the right support frame 20 through bearings, and a plurality of lower guide rollers are movably connected between the front and rear lower cross beams of the right support frame 20 through bearings. On the inner side walls of the right parts of the front and rear lower cross beams of the right support frame 20, two vertical guide blocks are fixed respectively. In the middle of the opposite wall surfaces of the two vertical guide blocks, vertical guide grooves are formed. The adjusting block 21 is located between the corresponding two vertical guide blocks. In the middle of the left and right side walls of the adjusting block 21, guiding parts are formed respectively, and the guiding parts are inserted into the corresponding vertical guide grooves. The bottom surface of the adjusting block 21 is movably connected with a vertical adjusting screw rod 22 through a bearing. The vertical adjusting screw rod 22 is screwed in the vertical screw-through hole on the top plate of the main frame 10. The bottom end of the vertical adjusting screw rod 22 extends out of the bottom surface of the top plate of the main frame 10 and is fixed with a rotating wheel. A locking nut 221 is screwed on the lower part of the vertical adjusting screw rod 22, and the top surface of the locking nut 221 presses against the bottom surface of the top plate of the main frame 10. The two ends of the tensioning roller 23 are movably connected to the two adjusting blocks 21 through bearings.

[0058] Furthermore, a conveying motor is fixed on the outer side wall of the lower cross beam on one side of the leftmost lower guide roller of the right support frame 20. The output shaft of the conveying motor is a spline shaft, which is inserted into the spline hole at one end of the corresponding lower guide roller.

[0059] A friction layer 24 is formed on the outer side wall of the leftmost lower guide roller. An upper pressing roller 25 is arranged above it. The front and rear ends of the upper pressing roller 25 are movably connected with an up-and-down adjusting block 251 through bearings. On the top surfaces of the left parts of the two lower cross beams, upper support frames 26 are fixed respectively. The up-and-down adjusting block 251 is inserted into the vertical through groove in the middle of the corresponding upper support frame 26. On the left and right side walls of the up-and-down adjusting block 251, guiding blocks are formed respectively, and the guiding blocks are inserted into the middle vertical guiding grooves formed on the left and right side walls of the corresponding vertical through groove. A vertical screw-through hole is formed in the middle of the top plate of the upper support frame 26. An upper adjusting screw rod 261 is screwed in the vertical screw-through hole. The top end of the upper adjusting screw rod 261 extends out of the top surface of the top plate of the upper support frame 26 and is fixed with an upper rotating wheel. The bottom end of the upper adjusting screw rod 261 extends out of the bottom surface of the top plate and is movably connected with the top surface of the up-and-down adjusting block 251 through a bearing. An upper locking nut 262 is screwed on the upper part of the upper adjusting screw rod 261, and the bottom surface of the upper locking nut 262 presses against the top surface of the top plate of the upper support frame 26. An upper friction layer is fixed on the outer side wall of the upper pressing roller 25, and it corresponds to the leftmost lower guide roller up and down.

[0060] Furthermore, in the middle of the opposite wall surfaces of the two side fixing plates 17, there are both formed middle positioning through grooves extending left and right. On the left and right parts of the outer side walls of the two side fixing plates 17, there are both fixed outer connecting plates. The two ends of the transverse adjusting screw rod are movably connected to the two outer connecting plates through bearings. On the outer side wall of one of the outer connecting plates, there is fixed a transverse adjusting motor. The output shaft of the transverse adjusting motor is a spline shaft, which is inserted into the spline hole at one end of the transverse adjusting screw rod. The positioning block 171 is screwed on the transverse adjusting screw rod. The inside of the positioning block 171 is inserted into the corresponding middle positioning through groove. On the top and bottom surfaces of the middle positioning through groove, there are both fixed self-lubricating wear-resistant layers. The top and bottom surfaces of the positioning block 171 are in close contact with the corresponding self-lubricating wear-resistant layers. In the middle of the inner wall surface of the positioning block 171, there is fixed a first proximity switch 172. The sensing end of the first proximity switch 172 corresponds to the sensing block fixed on the left side wall of the corresponding vertical plate 62.

[0061] In the middle of the left part of the top plate of the main frame 10, there is formed a blanking through groove 18. The left end of the blanking through groove 18 extends out of the left side wall of the top plate of the main frame 10.

[0062] On the top surfaces of the two upper transverse plates at the right parts of the two side fixing plates 17, there is fixed a main fixing plate extending front and back. In the middle of the main fixing plate, there is fixed a ventilator 3. The air outlet of the ventilator 3 faces the right part of the blanking through groove 18.

[0063] Below the blanking through groove 18, there is provided a lower receiving trough member 70. On the front and rear parts of the bottom surface of the left part of the top plate of the main frame 10, there are both fixed side guide plates 19. On the opposite wall surfaces of the two side guide plates 19, there are both fixed protruding strips 191 extending left and right. Below the protruding strips 191, there is fixed a lower guide strip 192. The front and rear parts of the bottom surface of the lower receiving trough member 70 are pressed against the top surface of the lower guide strip 192 where there is fixed a lower self-lubricating layer. The top surface of the lower receiving trough member 70 is in close contact with or close to the bottom surface of the protruding strip 191.

[0064] On the top surface of the left part of the lower guide strip 192, there is formed a downward extending lower groove. The left end of the lower groove extends out of the left end surface of the lower guide strip 192. On the top surface of the lower groove, there is fixed a permanent magnet plate 5. The top surface of the permanent magnet plate 5 is lower than the top surface of the lower guide strip 192.

[0065] On the front, rear, left and right parts of the bottom surface of the bottom plate of the lower receiving trough member 70, there are both fixed lower support legs. On the bottom surface of the lower support legs, there are fixed columns extending downward. In the middle of the top surface of the top plate of the bottom roller frame 71, there is formed a jack. The lower part of the column is inserted into the jack. A second buffer spring 72 is inserted on the column. The top end of the second buffer spring 72 is fixed on the bottom surface of the lower support leg. The bottom end of the second buffer spring 72 is fixed on the top surface of the top plate of the bottom roller frame 71. On the bottom roller frame 71, there is a roller 74 movably connected through a hinge shaft. The bottom surface of the roller 74 is pressed against the ground.

[0066] A fixing plate is fixed to the middle of the bottom surface of the top plate of the main frame 10 on the right side of the lower material receiving trough member 70. A bottom pushing air cylinder 75 is fixed to the right side wall of the fixing plate. The end of the push rod of the bottom pushing air cylinder 75 extends out of the left side wall of the fixing plate and is fixed with a pushing plate 76. A plurality of transverse guide rods are fixed to the right side wall of the pushing plate 76, and the transverse guide rods are inserted into the guiding through holes on the fixing plate.

[0067] Positioning concave holes 761 are formed in both the front part and the rear part of the left side wall of the pushing plate 76. The right end of the positioning rod 77 is inserted into the corresponding positioning concave hole 761 and is movably connected to the pushing plate 76 through a hinge shaft. The top surface and the bottom surface of the right end of the positioning rod 77 are close to the top surface and the bottom surface of the positioning concave hole 761, and are limited by the top surface and the bottom surface of the positioning concave hole 761.

[0068] A convex positioning portion 771 extending downward is formed on the bottom surface of the left end of the positioning rod 77. A concave hole is formed on the right side wall of the right side plate of the lower material receiving trough member 70. A connecting block 78 extending to the right is fixed to the middle of the inner wall surface of the concave hole. A lower convex portion is formed on the top surface of the right end of the connecting block 78. The top surface of the lower convex portion is an inclined surface with the right end bottom and the left end high. The left part of the top surface of the convex positioning portion 771 of the positioning rod 77 is also an inclined surface with the left end high and the right end low, which corresponds to the lower convex portion of the connecting block 78. One end of a tension spring 79 is fixed to the left part of the top surface of the positioning rod 77, and the upper end of the tension spring 79 is fixed to the pushing plate 76. The upper part of the lower convex portion is located on the right side of the convex positioning portion 771. The left side wall of the upper part of the lower convex portion is close to the right side wall of the convex positioning portion 771. The front and rear side walls of the left part of the positioning rod 77 are close to the front and rear inner side walls of the concave hole, and the positioning rod 77 is prevented from moving forward and backward through the concave hole.

[0069] In this embodiment, all the electrical equipment used and various electrical equipment of the pneumatic system are connected to the control host through electrical connection lines and are controlled by the control host to operate. They are all conventional structures and will not be elaborated here.

[0070] When this embodiment is in use, the fabric reel 100 to be processed can be transported and placed on the two support rollers 34 by means of a crane or the like. At this time, the push rod of the middle lifting cylinder 32 is in a pushing state, so that the first lifting frame 33 is in a lifting state. At this time, the central hollow shaft of the fabric reel 100 corresponds to the front positioning shaft 352 and the output shaft of the rotary drive motor 362 before and after. When the axial convex strip on the inner side wall of the central hollow shaft is not aligned with the corresponding positioning groove of the front positioning shaft 352 and the rear positioning groove of the output shaft of the rotary drive motor 362, the fabric reel 100 can be manually rotated to adjust its position. When the central hollow shaft of the fabric reel 100 is not aligned with the central axis of the front positioning shaft 352 and the rotary drive motor 362, first retract the push rod of the middle lifting cylinder 32 to lower the first lifting frame 33. Then, rotate the corresponding adjusting nut 9 to change the limiting position, that is, move the adjusting nut 9 downward to increase the lifting height of the first lifting frame 33, and move it upward to reduce the lifting height of the first lifting frame 33. In this way, the height position of the central axis of the fabric reel 100 placed thereon can be adjusted. It is pushed by the push rod of the middle lifting cylinder 32 to lift the fabric reel 100. At this time, the central hollow shaft of the fabric reel 100 is aligned with the central axes of the front positioning shaft 352 and the rotary drive motor 362. Then, it is pushed by the push rod of the first push cylinder 35 to insert the front positioning shaft 352 into the front end of the central hollow shaft of the fabric reel 100, and the axial convex strip on the inner side wall of the central hollow shaft is inserted into the corresponding positioning groove; at the same time, the moving servo motor 371 operates to move the adjusting block 21 forward, so that the output shaft of the rotary drive motor 362 is inserted into the rear end of the central hollow shaft of the fabric reel 100, and the axial convex strip on the inner side wall of the central hollow shaft is inserted into the corresponding rear positioning groove. At this time, the connection is achieved. Then, the fabric of the fabric reel 100 is first pulled out, moved along the upper guide roller, lower guide roller, tension roller 23 and upper pressure roller 25 of the right support frame 20, and finally extended and placed on the top surface of the middle punching block 11;

[0071] Among them, by loosening the two upper locking nuts 262 and rotating the two upper adjusting screws 261, the height position of the upper pressure roller 25 can be adjusted, and the friction force between the fabric clamped between the friction layer 24 and the upper friction layer can be changed. After the adjustment is completed, tighten the corresponding upper locking nut 262;

[0072] Similarly, loosen the two locking nuts 221 and rotate the two vertical adjusting screws 22 to change the height position of the tension roller 23, thereby changing the tension of the conveyed fabric. After the adjustment is completed, tighten the locking nuts 221.、

[0073] In this embodiment, except for the first time when it needs to be manually pulled in place, subsequent manual adjustment and pulling are no longer required.

[0074] When the end of the fabric is on the left top surface of the middle punching block 11, it is sensed by the proximity switch installed on the left part of the middle punching block 11, indicating that it has moved into place (vertical extending stepped through holes are formed at the front and rear of the left top surface of the middle punching block 11. The bottom of the stepped through hole communicates with the inner cavity below the left part of the middle punching block 11. Internal threads are formed on the inner side wall of the lower hole section of the stepped through hole. The lower part of the sensing proximity switch is screwed onto the internal thread, and the top surface of the sensing end of the sensing proximity switch does not protrude from the left top surface of the middle punching block 11). When it senses the fabric through the sensing ends of the two sensing proximity switches, it indicates that it has moved into place. At this time, after the sensing signal is sent to the control host, the control host controls the two upward moving servo motors to operate, moving the gripping block 40 to the right until the sensing end of the second proximity switch on the left side wall of the end connecting plate on the right part of the horizontal moving mechanism 60 senses the right side wall of the corresponding vertical plate 62. The second proximity switch sends the sensing signal to the control host, indicating that it has moved into place. The control host controls the upward moving servo motor to stop running. At this time, the gripping block 40 is above the left part of the fabric. Pushed by the push rod of the gripping cylinder 64, the bottom surface of the gripping block 40 is pressed against the left top surface of the fabric and adsorbed. Then, the push rod of the gripping cylinder 64 retracts (this process takes about 5 seconds). At this time, the left part of the fabric is lifted. Through the guiding of the guide roller 2, to prevent the left part of the placed fabric from being lifted too high. Then, the two upward moving servo motors operate to move the fabric to the left until the sensing ends of the two first proximity switches 172 sense the sensing blocks fixed on the left side wall of the corresponding vertical plate 62, indicating that it has moved into place (by operating the two horizontal adjustment motors, the left and right position movement of the positioning block 171 can be realized, thereby changing the sensing position of the first proximity switch 172, and thus changing the length of the pulled-out fabric to meet the processing requirements). After the sensing end of the first proximity switch 172 senses the sensing block fixed on the left side wall of the corresponding vertical plate 62, the control host controls the upward moving servo motor to stop running. At the same time, it controls the solenoid valve of the pneumatic system to operate, making the positioning adsorption fixing block 16 inhale, adsorbing the fabric around the cutting area on the top surface of the positioning adsorption fixing block 16 to ensure that the fabric will no longer move. Then, pushed by the push rod of the punching cylinder 121, the upper punching blade 123 descends, causing the middle punching block 11 to descend. At the same time, it cooperates with the left side wall of the lower cutting blade 112 to cut the fabric. Then, the push rod of the punching cylinder 121 retracts to complete the cutting. After completion, the positioning adsorption fixing block 16 stops inhaling. By operating the rotary drive motor 362, the fabric reel 100 rotates to feed the material. By operating the conveying motor, the corresponding lower guide roller rotates, making the fabric clamped between the friction layer 24 and the upper friction layer move to the left until it is sensed by the sensing ends of the two sensing proximity switches, indicating that it has moved into place, and subsequent operations can be carried out again.

[0075] For the fabric that has been cut in the front, its suction can be stopped by the grasping block 40, and it can automatically fall and drop from the blanking through groove 18. Among them, during the dropping process, by blowing air with the ventilator 3, it can ensure that the cut fabric moves and drops from the blanking through groove 18. The dropped fabric will be in the lower receiving trough member 70. With continuous cutting and blowing, the fabric will accumulate in the lower receiving trough member 70. After reaching a certain amount, the corresponding control valve of the corresponding pneumatic system can be controlled by the control host (in this embodiment, multiple pneumatic systems are used. Some of the pneumatic systems use vacuum pumps for adsorption, while the pneumatic system here uses an air pump to discharge air, so as to achieve different controls. They all adopt conventional structures and will not be elaborated here), so that the push rod of the bottom pushing cylinder 75 pushes, and the lower receiving trough member 70 moves to the left until the bottom surface of its right part is at the lower groove. It falls by the self-weight of the lower receiving trough member 70, so that the bottom surface of its right end presses against and is adsorbed and fixed on the permanent magnet plate 5. At this time, the connecting block 78 is separated from the positioning rod 77, and at the same time, the second buffer spring 72 is compressed. At this time, the lower receiving trough member 70 can be moved out to the left, and the bottom surface of the roller 74 presses against the ground and rolls out to complete the discharging, which is very convenient.

[0076] After unloading the fabric, reinstall the lower receiving trough member 70. Since the weight of the lower receiving trough member 70 decreases after the fabric inside is unloaded, through the elastic recovery of the second buffer spring 72, the lower receiving trough member 70 can be lifted, so that it moves to the right along the blanking through groove 18, and the lower receiving trough member 70 moves along the guiding groove formed between the raised strip 191 and the lower guiding strip 192. After moving to the right, its connecting block 78 pushes the positioning rod 77 upward until the upper part of the lower raised part of the connecting block 78 is at the right side of the raised positioning part 771, and the left side wall of the upper part of the lower raised part is close to the right side wall of the raised positioning part 771. At this time, through the elastic recovery of the tension spring 79, the left end of the positioning rod 77 is pressed down to complete the connection.

[0077] When this embodiment is in use, the operation of the rotation drive motor 362 and the conveying motor needs to cooperate with each other to ensure the normal feeding and conveying of the fabric reel 100. The conveying speeds of the fabrics conveyed by the two are kept consistent. At the same time, the rotation drive motor 362 and the conveying motor adopt servo motors, and they can detect the approximate length of the conveyed fabric through the number of rotation turns during operation, which is convenient for controlling the total length of the conveyed fabric and the cutting length.

Claims

1. A nonwoven fabric cutting device with a positioning function, comprising a main frame (10), characterized in that: A right support frame (20) is fixed to the top surface of the right part of the top plate of the main frame (10), a material unloading support frame (30) is fixed to the ground on the right side of the main frame (10), and a cloth roll (100) is installed on the material unloading support frame (30); An intermediate punching block (11) and an intermediate punching support frame (12) are fixed to the middle of the top surface of the top plate of the main frame (10); a punching cylinder (121) is fixed to the middle of the top surface of the top plate of the intermediate punching support frame (12); the bottom end of a push rod of the punching cylinder (121) extends out of the bottom surface of the top plate of the intermediate punching support frame (12) and is fixed with a lifting plate (122); an upper punching blade (123) extending forward and backward is fixed to the middle of the bottom surface of the lifting plate (122); and a forming portion is formed in the middle of the top surface of the intermediate punching block (11). A lower cutting groove (111) is provided to match the upper punching blade (123); a side mounting groove is formed on the upper portion of the right side wall of the lower cutting groove (111); the top end of the side mounting groove extends out of the top surface of the middle punching block (11); the lower cutting blade (112) is located in the side mounting groove and fixed on the inner side wall of the side mounting groove; the top surface of the lower cutting blade (112) is flush with the top surface of the middle punching block (11); the right side wall of the upper punching blade (123) matches and corresponds to the left side wall of the lower cutting blade (112); A grab block (40) is installed on the left part of the top plate of the main frame (10), and the grab block (40) matches the top surface of the middle punching block (11).

2. The nonwoven fabric cutting device with positioning function according to claim 1, characterized in that: A lifting block (13) is inserted into the lower cutting slot (111), the right side wall of the lifting block (13) is in close contact with the left side wall of the lower cutting blade (112), and the left side wall and the right side wall of the lower end of the lifting block (13) are both formed with extended edges (131), and the extended edges (131) are inserted into inner grooves formed on the left side wall and the right side wall of the lower part of the lower cutting slot (111), and the top surface of the extended edge (131) is pressed against the top surface of the corresponding inner groove. A plurality of return springs (1) are inserted into the lower part of the lower cutting slot (111), and the top end of the return spring (1) is applied to the bottom surface of the lifting block (13), and the bottom end is applied to the top surface of the top plate of the main frame (10).

3. The nonwoven fabric cutting device with positioning function according to claim 2, characterized in that: The bottom end of the reset spring (1) is inserted into a lower positioning block formed or fixed on the top surface of the top plate of the main frame (10), and the top end of the reset spring (1) is inserted into an upper positioning block formed or fixed on the bottom surface of the lifting block (13).

4. The nonwoven fabric cutting device with positioning function according to claim 1, characterized in that: A middle horizontal support plate (124) extending forward and backward is provided in the middle of the middle punching support frame (12); the front wall surface and the rear wall surface of the middle horizontal support plate (124) are fixed on the inner side walls of the front and rear side support plates of the middle punching support frame (12); a middle through groove (125) extending forward and backward is formed in the middle of the middle horizontal support plate (124); a scraper guide plate (126) extending forward and backward is fixed on the left and right walls of the middle through groove (125); and the left and right walls of the upper punching blade (123) are closely attached to the inner wall surfaces of the corresponding scraper guide plates (126).

5. The nonwoven fabric cutting device with positioning function according to claim 1, characterized in that: A positioning adsorption fixing block (16) is closely attached to the right side wall of the middle punching block (11); the front and rear wall surfaces of the positioning adsorption fixing block (16) are fixed to the inner side walls of the front and rear side support plates of the middle punching support frame (12); an air suction cavity is formed in the middle of the positioning adsorption fixing block (16); a plurality of air suction through holes (161) are formed on the top surface of the positioning adsorption fixing block (16); the air suction through holes (161) are communicated with the air suction cavity; the top surface of the positioning adsorption fixing block (16) and the top surface of the middle punching block (11) are in the same plane; an air suction connector (162) is fixed to the bottom surface of the positioning adsorption fixing block (16); the air suction connector (162) is communicated with the air suction cavity.

6. The nonwoven fabric cutting device with positioning function according to claim 4, characterized in that: A plurality of vertical guide columns (127) are fixed on the top surface of the intermediate horizontal support plate (124). The vertical guide columns (127) are inserted into corresponding vertical through holes formed on the lifting plate (122). The top ends of the vertical guide columns (127) are fixed on the top plate of the intermediate punching support frame (12). A plurality of buffer springs (128) are inserted on the vertical guide columns (127). The top ends of the buffer springs (128) are applied to the bottom surface of the lifting plate (122), and the bottom ends of the buffer springs (128) are applied to the top surface of the intermediate horizontal support plate (124).

7. The nonwoven fabric cutting device with positioning function according to claim 4, characterized in that: A guide roller (2) extending forward and backward is provided at the lower left portion of the intermediate punching support frame (12), and the front and rear ends of the guide roller (2) are movably connected to the front and rear side support plates of the intermediate punching support frame (12) through bearings, and the bottom end of the guide roller (2) is close to the top surface of the intermediate punching block (11).

8. The nonwoven fabric cutting device with positioning function according to claim 1, characterized in that: Side fixing plates (17) are fixed to the front and rear top surfaces of the top plate of the main frame (10) at the left side of the middle punching block (11), and horizontal moving mechanisms (60) extending left and right are installed on the upper parts of the opposite walls of the two side fixing plates (17). Vertical plates (62) are fixed to the bottom surfaces of the moving blocks (61) of the two horizontal moving mechanisms (60), and horizontal plates (63) extending front and back are fixed to the bottom surfaces of the two vertical plates (62). A grabbing cylinder (64) is fixed to the middle of the top surface of the horizontal plate (63), and the grabbing cylinder (64) is fixed to the bottom surface of the horizontal plate (63). The bottom end of the push rod of the cylinder (64) extends out of the bottom surface of the transverse plate (63) and is fixed with a grab block (40). A first inner cavity is formed inside the grab block (40). A plurality of lower adsorption through holes are formed on the bottom surface of the grab block (40), and the lower adsorption through holes are communicated with the first inner cavity. A protective elastic layer (41) is fixed to the bottom surface of the grab block (40), and adsorption through holes corresponding to and communicated with the lower adsorption through holes are formed on the protective elastic layer (41). A left suction connector is fixed on the left side wall of the grab block (40), and the left suction connector is communicated with the first inner cavity.

9. The nonwoven fabric cutting device with positioning function according to claim 8, characterized in that: Vertical guide rods are fixed to the front and rear top surfaces of the grab block (40), and the vertical guide rods are inserted into corresponding vertical guide through holes on the transverse plate (63).

10. The nonwoven fabric cutting device with positioning function according to claim 1, characterized in that: A lifting groove (31) extending forward and backward is formed in the middle of the upper top plate of the material unloading support frame (30); an intermediate lifting cylinder (32) is fixed in the middle of the bottom surface of the middle horizontal plate of the material unloading support frame (30); the top end of the push rod of the intermediate lifting cylinder (32) extends out of the top surface of the middle horizontal plate and is fixed with a first lifting frame (33); two supporting rollers (34) extending forward and backward are movably connected at the front and rear of the middle part of the first lifting frame (33) through bearings; the tops of the supporting rollers (34) extend out of the top surface of the lifting groove (31); the cloth roll (100) to be processed is pressed against the two supporting rollers (34); a plurality of lower guide rods are fixed on the bottom surface of the first lifting frame (33); the lower guide rods are inserted into the corresponding vertical guide holes on the middle horizontal plate.

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