A puncture needle air cap filter membrane production device

Abstract

The application discloses a puncture needle air cap filter membrane production device, and belongs to the technical field of medical instrument production equipment, which comprises a rack, an air cap feeding assembly for automatically feeding air caps is connected to the rack, a multifunctional punching assembly for automatically feeding filter belts and punching out filter membranes is connected to the rack, a mode changing assembly for assisting filter membrane combination or collection is connected to the multifunctional punching assembly, the mode changing assembly comprises an auxiliary pressing assembly and a sliding changing assembly, the air cap feeding assembly and the multifunctional punching assembly are connected with the auxiliary pressing assembly, and the auxiliary pressing assembly and the sliding changing assembly are connected with the rack. Through the above mode, the mode changing assembly can assist automatic assembly when there are enough air caps, or automatically and orderly collect punched filter membranes when there are not enough air caps.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of medical instrument production equipment, in particular to a puncture needle air cap filter membrane production device. BACKGROUND

[0002] In order to prevent insoluble particles in the liquid from entering the human body during puncture and causing adverse reactions, an air cap is connected to the puncture needle tube, and a filter membrane is arranged in the air cap to effectively filter particles in the liquid medicine.

[0003] A filter membrane punching and assembling device for an infusion filter is disclosed in Chinese patent CN114407132B, which tightens the filter belt through an unwinding assembly, a membrane moving assembly, a material taking assembly and a membrane collecting assembly, and then punches the filter membrane using a punching assembly.

[0004] However, the above patent has the following shortcomings: 1. The punched filter membranes need to be sorted one by one and transferred to the next assembly process, which cannot complete punching and assembling simultaneously, and the process is complicated; 2. The feeding and tightening process of the filter belt is complicated, resulting in high production equipment cost.

[0005] Therefore, the present application provides a puncture needle air cap filter membrane production device to solve the above problems. SUMMARY

[0006] In view of the above shortcomings of the prior art, the present application provides a puncture needle air cap filter membrane production device.

[0007] To achieve the above purpose, the present application realizes the following technical solutions:

[0008] A puncture needle air cap filter membrane production device, comprising a rack, the rack is connected with an air cap feeding assembly for automatically feeding air caps; the rack is connected with a multifunctional punching assembly for automatically feeding filter belts and punching filter membranes; the multifunctional punching assembly is connected with a mode changing assembly for assisting filter membrane assembly or collection; the mode changing assembly comprises an auxiliary pressing assembly and a sliding changing assembly; the air cap feeding assembly and the multifunctional punching assembly are connected with the auxiliary pressing assembly, and the auxiliary pressing assembly and the sliding changing assembly are connected with the rack.

[0009] Further, the air cap feeding assembly comprises a belt pulley, a conveying belt and a carrier; the bottom ends of two groups of belt pulleys are fixedly connected with the top end of the rack, the conveying belt is drivingly connected through the two groups of belt pulleys, the bottom ends of a plurality of groups of carriers are fixedly connected with the top end of the conveying belt, and the plurality of groups of carriers are evenly distributed at the top end of the conveying belt, and the shaft of one group of belt pulleys is fixedly connected with the output end of an external driving motor.

[0010] Further, the multifunctional punching assembly comprises a die assembly, a winding assembly and a punching assembly; the air cap feeding assembly and the mode changing assembly are connected with the punching assembly, and the die assembly is connected with the rack.

[0011] Further, the die assembly comprises a punching table and dies; the punching table is uniformly provided with a plurality of groups of the dies, the inner wall diameter of the die is the same as the diameter of the filter membrane, and the bottom end of the punching table is fixedly connected with the top end of the rack.

[0012] Further, the winding assembly comprises a connecting plate, a winding motor, a winding shaft, a guide fixed shaft, a thorn wheel, a reverse blocking block, a rotating shaft and a traction spring; four groups of the connecting plates are fixedly connected with four corners of the punching table respectively, and two groups of the connecting plates opposite to each other are perpendicular to the moving direction of the conveying belt; the winding motor is fixedly connected with the outer wall of one group of the connecting plates; the thorn wheel is rotatably connected with the outer wall of the other group of the connecting plates through a bearing; the output shaft of the winding motor is fixedly connected with the winding shaft through the connecting plate connected therewith; the shaft of the thorn wheel is fixedly connected with the shaft of the winding shaft through the connecting plate connected therewith; the two ends of the winding shaft are rotatably connected with two groups of the connecting plates through bearings; the bearing outer end of the thorn wheel is fixedly connected with one end of the traction spring through a plate; the other end of the traction spring is fixedly connected with the reverse blocking block; the reverse blocking block is rotatably connected with the rotating shaft, and the rotating shaft is fixedly connected with the connecting plate; the arc surface and the plane of the thorn wheel teeth are in contact with the plane of the reverse blocking block; and the two ends of the guide fixed shaft are rotatably connected with two groups of the connecting plates on the other side of the punching table through bearings.

[0013] Further, the punching assembly comprises a punching cylinder, a punching support plate, a punching connecting plate, a first pressing block, a fixed support plate, a fixed roller and a blocking assembly; the bottom end of the punching cylinder is fixedly connected with the top end of the punching support plate; the output shaft of the punching cylinder is fixedly connected with the top end of the punching connecting plate through the punching support plate; the bottom end of the punching connecting plate is fixedly connected with the top end of a plurality of groups of the first pressing blocks; the first pressing blocks correspond to the dies one by one, and the difference between the diameter of the first pressing block and the diameter of the die is equal to the thickness of the filter membrane; the top ends of two groups of the fixed support plates are fixedly connected with the side top end of the punching connecting plate away from the winding motor; the two ends of the fixed roller are rotatably connected with the bottom ends of the two groups of the fixed support plates through bearings; the fixed roller and the guide fixed shaft are in contact with two surfaces at the same position of the filter belt respectively; and the blocking assembly is fixedly connected with one end of the punching connecting plate close to the air cap feeding.

[0014] Further, the punching support plate is slidably connected with the mode changing assembly, the punching cylinder is fixedly connected with the mode changing assembly, and the blocking assembly is in contact with the carrier.

[0015] Further, the blocking assembly comprises a first L-shaped support plate, a horizontal plate, a hollow tube, a connecting spring and a carrier blocking block; one end of the first L-shaped support plate is fixedly connected with the punching connecting plate close to the one end of the air cap feeding, the other end of the first L-shaped support plate is fixedly connected with the top end of the horizontal plate, the bottom end of the horizontal plate is fixedly connected with the top end of a plurality of groups of the hollow tubes, the two ends of the connecting spring are respectively fixedly connected with the inner wall of the top end of the hollow tube and the outer wall of the top end of the carrier blocking block, the inner wall of the hollow tube is in sliding connection with the outer wall of the carrier blocking block, and the carrier blocking block is in contact connection with the inner wall of the carrier groove.

[0016] Further, the auxiliary pressing-down assembly comprises a support frame, a pressing-down cylinder, a second L-shaped support plate, a pressing block support plate, a second pressing block, a pressing-down support plate and a cylinder connecting plate; the top ends of four groups of the support frames are respectively fixedly connected with the four corners of the bottom end of the pressing-down support plate, the bottom ends of two groups of the support frames are fixedly connected with the rack, the top end of the pressing-down support plate is fixedly connected with the bottom end of the pressing-down cylinder, the output shaft of the pressing-down cylinder penetrates through the pressing-down support plate and is fixedly connected with the top end of the cylinder connecting plate, the bottom end of the cylinder connecting plate is fixedly connected with the top end of the punching cylinder, the one end of the cylinder connecting plate close to the air cap discharging end is fixedly connected with one end of the second L-shaped support plate, the other end of the second L-shaped support plate is fixedly connected with the top end of the pressing block support plate, the bottom end of the pressing block support plate is fixedly connected with a plurality of groups of the second pressing blocks, the side wall of the second pressing block is in contact connection with the side end of the inner wall of the carrier groove, and the bottom end of the second pressing block is in contact connection with the top end of the filter membrane.

[0017] Further, the sliding replacement assembly comprises a first sliding rail, a second sliding rail, a replacement plate, a straight guide tube, an arc-shaped guide tube, a pushing cylinder, a third sliding rail and a guide tube support plate; the bottom end of one side of the first sliding rail and the second sliding rail is fixedly connected with the top end of the rack, a group of sliding grooves are formed in the middle of the first sliding rail and the second sliding rail, the two ends of the replacement plate are respectively provided with sliding blocks, the sliding grooves of the first sliding rail and the second sliding rail are in sliding connection with the sliding blocks at the two ends of the replacement plate, a plurality of groups of slots are formed in the replacement plate, a plurality of groups of the straight guide tubes are fixedly connected with one end of the replacement plate close to the air cap feeding assembly, a plurality of groups of the arc-shaped guide tubes are fixedly connected with the other end of the replacement plate away from the air cap feeding assembly, and the straight guide tubes and the arc-shaped guide tubes are respectively communicated with half of the slots formed in the replacement plate one by one, the inner walls of the straight guide tubes and the arc-shaped guide tubes are in sliding connection with the outer wall of the filter membrane, the pushing cylinder is fixedly connected with one end of the first sliding rail, the sliding block at one end of the replacement plate penetrates through the sliding groove of the first sliding rail and is fixedly connected with the output shaft of the pushing cylinder, the inner wall of the guide tube support plate is fixedly connected with the outer wall of the bottom end of a plurality of groups of the arc-shaped guide tubes one by one, the bottom end outer wall of the guide tube support plate is in sliding connection with the inner wall of the third sliding rail, and the bottom end of the arc-shaped guide tube is detachably connected with the collecting pipe in the external environment.

[0018] Advantages

[0019] The present application puts the air cap into the carrier when the air cap is sufficient, and the carrier drives the air cap to move under the multifunctional punching and cutting assembly. In this mode, the pushing cylinder of the sliding replacement assembly of the mode replacement assembly drives the replacement plate away from the air cap feeding assembly until the slider at one end of the replacement plate is in contact with the inner wall of the pushing cylinder through the first sliding rail sliding groove. At this time, the straight guide tube is located above the carrier, and the straight guide tube, the die and the carrier loading groove are one-to-one connected. After the punching and cutting are completed, the lower pressing cylinder of the auxiliary lower pressing assembly is started, the lower pressing cylinder pushes the cylinder connecting plate down, the cylinder connecting plate drives the punching and cutting cylinder down, the punching and cutting cylinder drives the punching and cutting connecting plate and the first pressing block down, the first pressing block pushes the punched filter membrane along the inner wall of the straight guide tube into the carrier loading groove, and the second L-shaped support plate is lowered along with the cylinder connecting plate, the second L-shaped support plate drives the pressing block support plate down, the pressing block support plate drives the second pressing block down, the bottom end of the second pressing block is in contact with the top end of the last assembled filter membrane, and the filter membrane is pressed into the bottom end of the air cap. When the air cap is insufficient, the belt pulley starts to drive the multifunctional punching and cutting assembly between the two carriers, the carrier is an arc-shaped guide tube, the pushing cylinder is started, the pushing cylinder drives the replacement plate to approach the carrier until the slider at one end of the replacement plate is in contact with the inner wall of the pushing cylinder through the first sliding rail sliding groove, the replacement plate drives the arc-shaped guide tube to approach the air cap feeding assembly, at this time the arc-shaped guide tube is one-to-one connected with the die, the arc-shaped guide tube drives the guide tube support plate to approach the air cap feeding assembly along the third sliding rail, the guide tube support plate supports the arc-shaped guide tube, the punched filter cap moves along the die and the arc-shaped guide tube until it enters the collection pipe and is stacked and collected. The sliding replacement assembly can realize random switching of the two modes, preventing delay when the air cap is insufficient.

[0020] The present application stops the belt pulley from rotating when punching, stops the carrier under the multifunctional punching assembly, starts the punching cylinder of the punching assembly of the multifunctional punching assembly, drives the punching connecting plate to descend, drives the first pressing block and the fixed support plate to descend, clamps one end of the filter belt with the guide fixed shaft of the winding assembly, cooperates the winding shaft, the thorn wheel, the reverse blocking block, the rotating shaft and the traction spring to fix the waste end of the filter belt, so that the filter belt is taut during processing, cooperates the first pressing block and the die to punch the filter membrane, the filter membrane falls into the carrier at the lower end through the mode changing assembly, completes assembly, starts the belt pulley again, drives the punching cylinder to ascend, starts the winding motor, drives the winding shaft to rotate, drives the waste end of the filter belt to rotate, and automatically changes the available filter belt for the next punching; to ensure that the carrier just receives the filter membrane, the first L-shaped support plate of the blocking assembly descends with the punching connecting plate before the first pressing block contacts the filter belt, the carrier blocking block is in contact with the inner wall of the carrier in the assembly position, the inner wall of the carrier blocking block is in contact with the inner wall of the hollow pipe when the first pressing block starts to punch, the blocking carrier continues to advance, provides resistance for the conveying belt, and prevents the conveying belt from continuing to advance due to inertia; when the winding shaft rotates, the thorn wheel rotates with the winding shaft, the arc of the thorn wheel pushes the plane of the reverse blocking block, the reverse blocking block rotates slightly around the rotating shaft, the traction spring pulls one end of the reverse blocking block downward all the time, so that the plane of the reverse blocking block continuously contacts the arc surface of the thorn wheel, when punching, the filter belt moves towards the punching table, drives the winding shaft to rotate in the opposite direction, the winding shaft drives the thorn wheel to rotate in the opposite direction, the plane of the thorn wheel contacts the plane of the reverse blocking block, the reverse blocking block prevents the thorn wheel from rotating in the opposite direction, thereby preventing the winding shaft from rotating in the opposite direction, thereby preventing the filter belt from moving, and the winding assembly can not only automatically change the filter belt but also tighten the filter belt with the guide fixed shaft to facilitate punching. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0022] Figure 1 A puncture needle air cap filter membrane production device main body structure perspective view Figure 1 ;

[0023] Figure 2 A puncture needle air cap filter membrane production device structure front view

[0024] Figure 3It is a left view of a puncture needle air cap filter membrane production device structure of the application;

[0025] Figure 4 It is a puncture needle air cap filter membrane production device main body structure perspective of the application Figure 2 ;

[0026] Figure 5 It is a puncture needle air cap filter membrane production device main body structure perspective of the application Figure 3 ;

[0027] Figure 6 It is a sectional view along the A-A direction;

[0028] Figure 7 It is an enlarged view of B of Figure 5 ;

[0029] Figure 8 It is an enlarged view of C of Figure 6 .

[0030] The labels in the figure respectively represent: 1, rack; 2, air cap feeding assembly; 21, belt pulley; 22, conveying belt; 23, carrier; 3, multifunctional punching assembly; 31, pressing die assembly; 311, punching table; 312, pressing die; 32, winding assembly; 321, connecting plate; 322, winding motor; 323, winding shaft; 324, guide fixed shaft; 325, thorn wheel; 326, reverse blocking block; 327, rotating shaft; 328, traction spring; 33, punching assembly; 331, punching cylinder; 332, punching support plate; 333, punching connecting plate; 334, first pressing block; 335, fixed support plate; 336, fixed roller; 337, blocking assembly; 3371, first L-shaped support plate; 3372, cross plate; 3373, hollow pipe; 3374, connecting spring; 3375, carrier blocking block; 4, mode replacement assembly; 41, auxiliary pressing-down assembly; 411, support frame; 412, pressing-down cylinder; 413, second L-shaped support plate; 414, pressing block support plate; 415, second pressing block; 416, pressing-down support plate; 417, cylinder connecting plate; 42, sliding replacement assembly; 421, first sliding rail; 422, second sliding rail; 423, replacement plate; 424, straight guide pipe; 425, arc-shaped guide pipe; 426, pushing cylinder; 427, third sliding rail; 428, guide pipe support plate. DETAILED DESCRIPTION

[0031] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0032] The present application will be further described below with reference to the embodiments.

[0033] Embodiment 1

[0034] Please refer to the drawings in the description Figures 1-8 An air cap filter membrane production device for a puncture needle, comprising a rack 1;

[0035] The rack 1 is connected with an air cap feeding assembly 2 for automatically feeding air caps;

[0036] The air cap feeding assembly 2 comprises a belt pulley 21, a conveying belt 22 and a carrier 23; the bottom ends of two groups of belt pulleys 21 are fixedly connected with the top end of the rack 1, the conveying belt 22 is drivingly connected through the two groups of belt pulleys 21, the bottom ends of a plurality of groups of carriers 23 are fixedly connected with the top end of the conveying belt 22, and the plurality of groups of carriers 23 are evenly distributed at the top end of the conveying belt 22, and the shaft of one group of belt pulleys 21 is fixedly connected with the output end of an external driving motor;

[0037] The external driving motor drives the belt pulley 21 of the air cap feeding assembly 2 to rotate regularly, the belt pulley 21 drives the conveying belt 22 to drive or stop regularly, the conveying belt 22 drives the carrier 23 to move and stop regularly, and the carrier 23 is used for carrying air caps. The conveying belt 22 carries the carrier 23 to the lower end of the multifunctional punching assembly 3 to assemble filter membranes.

[0038] Embodiment 2

[0039] In some embodiments, as shown in Figures 1-8 As a preferred embodiment of the present application, the rack 1 is connected with a multifunctional punching assembly 3 for automatically feeding filter belts and punching out filter membranes;

[0040] The multifunctional punching assembly 3 comprises a die assembly 31, a winding assembly 32 and a punching assembly 33; the air cap feeding assembly 2 and the die changing assembly 4 are both connected with the punching assembly 33, and the die assembly 31 is connected with the rack 1;

[0041] The die assembly 31 comprises a punching table 311 and a die 312; a plurality of groups of dies 312 are evenly provided on the punching table 311, the inner wall diameter of the die 312 is the same as the diameter of the filter membrane, and the bottom end of the punching table 311 is fixedly connected with the top end of the rack 1;

[0042] The winding assembly 32 comprises a connecting plate 321, a winding motor 322, a winding shaft 323, a guide fixed shaft 324, a thorn wheel 325, a reverse blocking block 326, a rotating shaft 327 and a traction spring 328; four groups of connecting plates 321 are fixedly connected with four corners of the punching table 311 respectively, and the two groups of connecting plates 321 opposite to the moving direction of the conveying belt 22, the winding motor 322 is fixedly connected with the outer wall of one group of connecting plates 321, the thorn wheel 325 is rotatably connected with the outer wall of the other group of connecting plates 321 through a bearing, the output shaft of the winding motor 322 is fixedly connected with the winding shaft 323 through the connecting plate 321 connected therewith, the shaft of the thorn wheel 325 is fixedly connected with the shaft of the winding shaft 323 through the connecting plate 321 connected therewith, the two ends of the winding shaft 323 are rotatably connected with the two groups of connecting plates 321 through bearings respectively, the bearing outer end of the thorn wheel 325 is fixedly connected with one end of the traction spring 328 through a plate, the other end of the traction spring 328 is fixedly connected with the reverse blocking block 326, the reverse blocking block 326 is rotatably connected with the rotating shaft 327, and the rotating shaft 327 is fixedly connected with the connecting plate 321, the arc surface and the plane of the thorn wheel 325 teeth are in contact with the plane of the reverse blocking block 326, and the two ends of the guide fixed shaft 324 are rotatably connected with the two groups of connecting plates 321 on the other side of the punching table 311 through bearings respectively;

[0043] The punching assembly 33 comprises a punching cylinder 331, a punching support plate 332, a punching connecting plate 333, a first pressing block 334, a fixed support plate 335, a fixed roller 336 and a blocking assembly 337; the bottom end of the punching cylinder 331 is fixedly connected with the top end of the punching support plate 332, the output shaft of the punching cylinder 331 is fixedly connected with the top end of the punching connecting plate 333 through the punching support plate 332, the bottom end of the punching connecting plate 333 is fixedly connected with the top end of a plurality of groups of first pressing blocks 334, the first pressing blocks 334 correspond one-to-one to the pressing molds 312, and the difference between the diameters of the first pressing blocks 334 and the diameters of the pressing molds 312 is equal to the thickness of the filter membrane, the top ends of the two groups of fixed support plates 335 are fixedly connected with the top end of the side of the punching connecting plate 333 away from the winding motor 322, the two ends of the fixed roller 336 are rotatably connected with the bottom ends of the two groups of fixed support plates 335 through bearings respectively, and the fixed roller 336 and the guide fixed shaft 324 are in contact connection with the two surfaces of the filter belt at the same position respectively, and the blocking assembly 337 is fixedly connected with one end of the punching connecting plate 333 close to the air cap feeding;

[0044] The punching support plate 332 is slidably connected with the mode changing assembly 4, the punching cylinder 331 is fixedly connected with the mode changing assembly 4, and the blocking assembly 337 is in contact connection with the carrier 23;

[0045] The blocking assembly 337 comprises a first L-shaped support plate 3371, a horizontal plate 3372, hollow tubes 3373, connecting springs 3374 and a carrier blocking block 3375; one end of the first L-shaped support plate 3371 is fixedly connected to the die-cutting connecting plate 333 near the end of the air cap inlet, the other end of the first L-shaped support plate 3371 is fixedly connected to the top end of the horizontal plate 3372, the bottom end of the horizontal plate 3372 is fixedly connected to the top end of the hollow tubes 3373, the two ends of the connecting springs 3374 are fixedly connected to the inner wall of the top end of the hollow tubes 3373 and the outer wall of the top end of the carrier blocking block 3375 respectively, the inner wall of the hollow tubes 3373 is in sliding connection with the outer wall of the carrier blocking block 3375, and the carrier blocking block 3375 is in contact connection with the inner wall of the carrier groove of the carrier 23;

[0046] When punching, the belt wheel 21 stops rotating, the carrier 23 stops under the multifunctional punching assembly 3, the punching cylinder 331 of the punching assembly 33 of the multifunctional punching assembly 3 is started, the punching connecting plate 333 is driven to descend, the punching connecting plate 333 drives a plurality of groups of first pressing blocks 334 and fixed support plates 335 to descend, the fixed support plates 335 are clamped with the guide fixed shaft 324 of the winding assembly 32 to clamp one end of the filter belt, the winding shaft 323, the thorn wheel 325, the reverse blocking block 326, the rotating shaft 327 and the traction spring 328 cooperate to fix the waste end of the filter belt, so that the filter belt is taut during processing, the first pressing blocks 334 cooperate with the pressing die 312 to punch out the filter membrane, the filter membrane falls into the carrier 23 at the lower end through the mode changing assembly 4, the assembly is completed, the belt wheel 21 is started again, the belt wheel 21 drives the punching cylinder 331 to ascend, at this time the winding motor 322 is started, the winding shaft 323 is driven to rotate, the waste end of the filter belt is driven to rotate, and the available filter belt is automatically replaced for the next punching; in order to ensure that the carrier 23 just receives the filter membrane, before the first pressing blocks 334 contact the filter belt, the first L-shaped support plate 3371 of the blocking assembly 337 descends with the punching connecting plate 333, the carrier blocking block 3375 is in contact with the inner wall of the carrier 23 in front of the assembly position, when the first pressing blocks 334 start punching, the connecting spring 3374 is compressed, the inner wall of the carrier blocking block 3375 is in contact with the inner wall of the hollow tube 3373, the blocking carrier 23 continues to advance, providing resistance to the conveying belt 22 to prevent the conveying belt 22 from continuing to move forward due to inertia; when the winding shaft 323 rotates, the thorn wheel 325 rotates with the winding shaft 323, the arc of the thorn wheel 325 pushes the plane of the reverse blocking block 326, the reverse blocking block 326 rotates slightly around the rotating shaft 327, and one end of the traction spring 328 pulls the reverse blocking block 326 downward at all times, so that the plane of the reverse blocking block 326 continuously contacts the arc surface of the thorn wheel 325; when punching, the filter belt moves towards the punching table 311, driving the winding shaft 323 to rotate in the opposite direction, the winding shaft 323 drives the thorn wheel 325 to rotate in the opposite direction, the plane of the thorn wheel 325 contacts the plane of the reverse blocking block 326, the reverse blocking block 326 prevents the thorn wheel 325 from rotating in the opposite direction, thereby preventing the winding shaft 323 from rotating in the opposite direction, thereby preventing the filter belt from moving, and the winding assembly 32 not only can automatically replace the filter belt but also can tighten the filter belt with the guide fixed shaft 324 to facilitate punching.

[0047] Embodiment 3

[0048] In some embodiments, as shown in Figures 1-8 as a preferred embodiment of the present application, the multifunctional punching assembly 3 is connected with a mode changing assembly 4 for assisting in combination or collection of the filter membrane;

[0049] The mode changing assembly 4 comprises an auxiliary pressing assembly 41 and a sliding changing assembly 42; the air cap feeding assembly 2 and the multi-functional punching assembly 3 are connected with the auxiliary pressing assembly 41, and the auxiliary pressing assembly 41 and the sliding changing assembly 42 are connected with the rack 1;

[0050] The auxiliary pressing assembly 41 comprises support frames 411, a pressing cylinder 412, a second L-shaped support plate 413, a pressing block support plate 414, second pressing blocks 415, a pressing support plate 416 and a cylinder connecting plate 417; the top ends of four groups of the support frames 411 are fixedly connected with the four corners of the bottom end of the pressing support plate 416, the bottom ends of two groups of the support frames 411 are fixedly connected with the rack 1, the top end of the pressing support plate 416 is fixedly connected with the bottom end of the pressing cylinder 412, the output shaft of the pressing cylinder 412 is fixedly connected with the top end of the cylinder connecting plate 417 through the pressing support plate 416, the bottom end of the cylinder connecting plate 417 is fixedly connected with the top end of the punching cylinder 331, the end of the cylinder connecting plate 417 close to the air cap discharging end is fixedly connected with one end of the second L-shaped support plate 413, the other end of the second L-shaped support plate 413 is fixedly connected with the top end of the pressing block support plate 414, the bottom end of the pressing block support plate 414 is fixedly connected with a plurality of groups of the second pressing blocks 415, the side wall of the second pressing block 415 is in contact with the side end of the inner wall of the carrier groove of the carrier 23, and the bottom end of the second pressing block 415 is in contact with the top end of the filter membrane;

[0051] The sliding changing assembly 42 comprises a first sliding rail 421, a second sliding rail 422, a changing plate 423, straight guide pipes 424, arc-shaped guide pipes 425, a pushing cylinder 426, a third sliding rail 427 and a guide pipe support plate 428; the bottom end of one side of the first sliding rail 421 and the second sliding rail 422 is fixedly connected with the top end of the rack 1, a group of sliding grooves are formed in the middle of the first sliding rail 421 and the second sliding rail 422, the two ends of the changing plate 423 are respectively provided with sliding blocks, the sliding grooves of the first sliding rail 421 and the second sliding rail 422 are in sliding connection with the sliding blocks at the two ends of the changing plate 423, a plurality of groups of slots are formed in the changing plate 423, a plurality of groups of the straight guide pipes 424 are fixedly connected with one end of the changing plate 423 close to the air cap feeding assembly 2, a plurality of groups of the arc-shaped guide pipes 425 are fixedly connected with the other end of the changing plate 423 away from the air cap feeding assembly 2, and the straight guide pipes 424 and the arc-shaped guide pipes 425 are respectively in communication with one half of the slots in the changing plate 423 in one-to-one correspondence, the inner walls of the straight guide pipes 424 and the arc-shaped guide pipes 425 are in sliding connection with the outer wall of the filter membrane, the pushing cylinder 426 is fixedly connected with one end of the first sliding rail 421, the sliding block at one end of the changing plate 423 is fixedly connected with the output shaft of the pushing cylinder 426 through the sliding groove of the first sliding rail 421, the inner wall of the guide pipe support plate 428 is fixedly connected with the outer wall of the bottom end of a plurality of groups of the arc-shaped guide pipes 425 in one-to-one correspondence, the bottom end outer wall of the guide pipe support plate 428 is in sliding connection with the inner wall of the third sliding rail 427, and the bottom end of the arc-shaped guide pipe 425 is detachably connected with the collecting pipe in the external environment;

[0052] When the air cap is sufficient, the air cap is placed on the carrier 23, and the carrier 23 drives the air cap to move under the multifunctional punching and cutting assembly 3. In this mode, the pushing cylinder 426 of the sliding replacement assembly 42 of the mode replacement assembly 4 drives the replacement plate 423 away from the air cap feeding assembly 2 until the sliding block at one end of the replacement plate 423 is in contact with the inner wall of the first sliding rail 421 groove near the pushing cylinder 426. At this time, the straight guide pipe 424 is located above the carrier 23, and the straight guide pipe 424, the die 312 and the carrier groove of the carrier 23 are in one-to-one correspondence. When the punching and cutting are completed, the lower pressing cylinder 412 of the auxiliary lower pressing assembly 41 is started, the lower pressing cylinder 412 drives the cylinder connecting plate 417 to descend, the cylinder connecting plate 417 drives the punching and cutting cylinder 331 to descend, the punching and cutting cylinder 331 drives the punching and cutting connecting plate 333 and the first pressing block 334 to descend, and the first pressing block 334 pushes the punched filter membrane along the inner wall of the straight guide pipe 424 to fall into the carrier groove of the carrier 23. At the same time, the second L-shaped support plate 413 descends with the cylinder connecting plate 417, the second L-shaped support plate 413 drives the pressing block support plate 414 to descend, and the pressing block support plate 414 drives the second pressing block 415 to descend. The bottom end of the second pressing block 415 is in contact with the top end of the last group of assembled filter membranes, so that the filter membranes are pressed into the bottom end of the air cap smoothly. When the air cap is insufficient, the belt pulley 21 is started to drive the multifunctional punching and cutting assembly 3 to be located between the two groups of carriers 23. The carrier 23 is an arc-shaped guide pipe 425, the pushing cylinder 426 is started, the pushing cylinder 426 drives the replacement plate 423 to approach the carrier 23 until the sliding block at one end of the replacement plate 423 is in contact with the inner wall of the first sliding rail 421 groove near the carrier 23. The replacement plate 423 drives the arc-shaped guide pipe 425 to approach the air cap feeding assembly 2. At this time, the arc-shaped guide pipe 425 is in one-to-one correspondence with the die 312. The arc-shaped guide pipe 425 drives the guide pipe support plate 428 to approach the air cap feeding assembly 2 along the third sliding rail 427. The guide pipe support plate 428 supports the arc-shaped guide pipe 425. The punched filter cap moves along the die 312 and the arc-shaped guide pipe 425 until it enters the collection pipe and is stacked and collected. The sliding replacement assembly 42 can realize random switching of the two modes to prevent delay when the air cap is insufficient.

[0053] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit it. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents. Such modifications or replacements will not change the essence of the corresponding technical solutions beyond the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A puncture needle air cap filter membrane production device, comprising a rack (1), characterized in that: The rack (1) is connected with an air cap feeding assembly (2) for automatically feeding air caps; The rack (1) is connected with a multifunctional punching assembly (3) for automatically feeding filter belts and punching out filter membranes; The multifunctional punching assembly (3) is connected with a mode changing assembly (4) for assisting filter membrane combination or collection; The mode changing assembly (4) comprises an auxiliary pressing assembly (41) and a sliding changing assembly (42); the air cap feeding assembly (2) and the multifunctional punching assembly (3) are connected with the auxiliary pressing assembly (41), and the auxiliary pressing assembly (41) and the sliding changing assembly (42) are connected with the rack (1); The air cap feeding assembly (2) comprises a belt pulley (21), a conveying belt (22) and a carrier (23); the bottom ends of two groups of the belt pulleys (21) are fixedly connected with the top end of the rack (1), the conveying belt (22) is drivingly connected through the two groups of the belt pulleys (21), the bottom ends of a plurality of groups of the carriers (23) are fixedly connected with the top end of the conveying belt (22), and the plurality of groups of the carriers (23) are evenly distributed on the top end of the conveying belt (22), and the shaft of one group of the belt pulleys (21) is fixedly connected with the output end of an external driving motor; The multifunctional punching assembly (3) comprises a pressing die assembly (31), a winding assembly (32) and a punching assembly (33); the air cap feeding assembly (2) and the mode changing assembly (4) are connected with the punching assembly (33), and the pressing die assembly (31) is connected with the rack (1); The pressing die assembly (31) comprises a punching table (311) and a pressing die (312); a plurality of groups of the pressing dies (312) are evenly arranged on the punching table (311), the inner wall diameter of the pressing die (312) is the same as the diameter of the filter membrane, and the bottom end of the punching table (311) is fixedly connected with the top end of the rack (1); The sliding replacement assembly (42) comprises a first sliding rail (421), a second sliding rail (422), a replacement plate (423), straight guide pipes (424), arc-shaped guide pipes (425), a pushing air cylinder (426), a third sliding rail (427) and a guide pipe support plate (428); the bottom ends on one side of the first sliding rail (421) and the second sliding rail (422) are fixedly connected with the top end of the rack (1), a group of sliding grooves are formed in the middle portions of the first sliding rail (421) and the second sliding rail (422), the two ends of the replacement plate (423) are respectively provided with sliding blocks, the sliding grooves of the first sliding rail (421) and the second sliding rail (422) are in sliding connection with the sliding blocks at the two ends of the replacement plate (423), a plurality of groups of slots are formed in the replacement plate (423), a plurality of groups of the straight guide pipes (424) are fixedly connected with one end of the replacement plate (423) close to the air cap feeding assembly (2), a plurality of groups of the arc-shaped guide pipes (425) are fixedly connected with the other end of the replacement plate (423) away from the air cap feeding assembly (2), and the straight guide pipes (424) and the arc-shaped guide pipes (425) are respectively and correspondingly communicated with half of the slots formed in the replacement plate (423), the inner walls of the straight guide pipes (424) and the arc-shaped guide pipes (425) are in sliding connection with the outer wall of the filter membrane, the pushing air cylinder (426) is fixedly connected with one end of the first sliding rail (421), the sliding block at one end of the replacement plate (423) is fixedly connected with the output shaft of the pushing air cylinder (426) through the sliding groove of the first sliding rail (421), the inner wall of the guide pipe support plate (428) is fixedly connected with the outer wall of the bottom end of each group of the arc-shaped guide pipes (425), the outer wall of the bottom end of the guide pipe support plate (428) is in sliding connection with the inner wall of the third sliding rail (427), and the bottom end of the arc-shaped guide pipe (425) is detachably connected with the collecting pipe outside.

2. The puncture needle air cap filter membrane production device according to claim 1, characterized by, The winding assembly (32) comprises a connecting plate (321), a winding motor (322), a winding shaft (323), a guide fixed shaft (324), a thorn wheel (325), a reverse blocking block (326), a rotating shaft (327) and a traction spring (328); four groups of the connecting plates (321) are fixedly connected with four corners of the punching table (311) respectively, and the two groups of the connecting plates (321) opposite to the moving direction of the vertical conveying belt (22), the winding motor (322) is fixedly connected with the outer wall of one group of the connecting plates (321), the thorn wheel (325) is rotatably connected with the outer wall of the other group of the connecting plates (321) through a bearing, the output shaft of the winding motor (322) is fixedly connected with the winding shaft (323) through the connecting plate (321) connected with the winding motor (322), the shaft of the thorn wheel (325) is fixedly connected with the shaft of the winding shaft (323) through the connecting plate (321) connected with the thorn wheel (325), the two ends of the winding shaft (323) are rotatably connected with the two groups of the connecting plates (321) through bearings respectively, the bearing outer end side of the thorn wheel (325) is fixedly connected with one end of the traction spring (328) through a plate, the other end of the traction spring (328) is fixedly connected with the reverse blocking block (326), the reverse blocking block (326) is rotatably connected with the rotating shaft (327), and the rotating shaft (327) is fixedly connected with the connecting plate (321), the curved surface and the plane of the thorn wheel (325) are in contact with the plane of the reverse blocking block (326), and the two ends of the guide fixed shaft (324) are rotatably connected with the two groups of the connecting plates (321) on the other side of the punching table (311) through bearings.

3. The puncture needle air cap filter membrane production device according to claim 1, characterized by, The punching assembly (33) comprises a punching cylinder (331), a punching support plate (332), a punching connecting plate (333), a first pressing block (334), a fixed support plate (335), a fixed roller (336) and a blocking assembly (337); the bottom end of the punching cylinder (331) is fixedly connected with the top end of the punching support plate (332), the output shaft of the punching cylinder (331) is fixedly connected with the top end of the punching connecting plate (333) through the punching support plate (332), the bottom end of the punching connecting plate (333) is fixedly connected with the top end of a plurality of groups of the first pressing block (334), the first pressing block (334) corresponds to the pressing die (312) one by one, and the difference between the diameter of the first pressing block (334) and the diameter of the pressing die (312) is equal to the thickness of the filter membrane, the top ends of two groups of the fixed support plates (335) are fixedly connected with the top end of the side of the punching connecting plate (333) away from the winding motor (322), the two ends of the fixed roller (336) are rotatably connected with the bottom ends of the two groups of the fixed support plates (335) through bearings respectively, the fixed roller (336) and the guide fixed shaft (324) are in contact with two surfaces at the same position of the filter belt respectively, and the blocking assembly (337) is fixedly connected with one end of the punching connecting plate (333) close to the air cap feeding.

4. The puncture needle air cap filter membrane production device according to claim 3, characterized by, The punching support plate (332) is in sliding connection with the mode changing assembly (4), the punching cylinder (331) is in fixed connection with the mode changing assembly (4), and the blocking assembly (337) is in contact connection with the carrier (23).

5. The puncture needle air cap filter membrane production device according to claim 3, characterized by, The blocking assembly (337) comprises a first L-shaped support plate (3371), a horizontal plate (3372), a hollow tube (3373), a connecting spring (3374) and a carrier blocking block (3375); one end of the first L-shaped support plate (3371) is fixedly connected with the punching connecting plate (333) near the air cap feeding end, the other end of the first L-shaped support plate (3371) is fixedly connected with the top end of the horizontal plate (3372), the bottom end of the horizontal plate (3372) is fixedly connected with the top end of the hollow tube (3373), the two ends of the connecting spring (3374) are fixedly connected with the inner wall of the top end of the hollow tube (3373) and the outer wall of the top end of the carrier blocking block (3375), the inner wall of the hollow tube (3373) is in sliding connection with the outer wall of the carrier blocking block (3375), and the carrier blocking block (3375) is in contact connection with the inner wall of the carrier groove of the carrier (23).

6. The puncture needle air cap filter membrane production device according to claim 1, characterized by, The auxiliary downward pressing assembly (41) comprises a support frame (411), a downward pressing cylinder (412), a second L-shaped support plate (413), a pressing block support plate (414), a second pressing block (415), a downward pressing support plate (416) and a cylinder connecting plate (417); the top end of four groups of support frames (411) is fixedly connected with the bottom end of the four corners of the downward pressing support plate (416), the bottom end of two groups of support frames (411) is fixedly connected with the rack (1), the top end of the downward pressing support plate (416) is fixedly connected with the bottom end of the downward pressing cylinder (412), the output shaft of the downward pressing cylinder (412) penetrates the downward pressing support plate (416) and is fixedly connected with the top end of the cylinder connecting plate (417), the bottom end of the cylinder connecting plate (417) is fixedly connected with the top end of the punching cylinder (331), the end of the cylinder connecting plate (417) near the air cap discharge end is fixedly connected with one end of the second L-shaped support plate, the bottom end of the other end of the second L-shaped support plate (413) is fixedly connected with the top end of the pressing block support plate (414), the bottom end of the pressing block support plate (414) is fixedly connected with a plurality of groups of second pressing blocks (415), the side wall of the second pressing block (415) is in contact connection with the side end of the inner wall of the carrier groove of the carrier (23), and the bottom end of the second pressing block (415) is in contact connection with the top end of the filter membrane.

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