A cutting machine and cutting method for fiber membrane bundle

Abstract

The present invention relates to the technical field of cutting equipment, and in particular to a cutting machine and cutting method for fiber membrane bundles, comprising: a loading component for automatically loading products to a feeding position; a feeding component for aligning the products at the feeding position with one side as a reference and then conveying them to the cutting position in sequence; a cutting component for pressing the products conveyed to the cutting position from the top, supporting the products from the bottom, and synchronously cutting both ends; a unloading component for automatically unloading the cut products, so as to solve the technical problems in the prior art of cutting fiber membrane bundles, such as unqualified cut surface flatness, low cutting efficiency, easy environmental pollution and increased product defective rate.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting equipment, and in particular to a cutting machine and a cutting method for a fiber membrane bundle. Background Art

[0002] Hollow fiber membranes are self-supporting membranes with a fiber-like appearance. They are hollow fiber filaments made of polysulfone and other materials, and have selective permeability. When the fiber membrane bundle is used, one end is sealed and the other end is bonded together with a specially formulated epoxy resin. During the processing of the fiber membrane bundle, the fiber filaments need to be wrapped with an outer membrane. In order to prevent end contamination, excess length is generally reserved. Both ends need to be cut to the set length before installation. Therefore, cutting equipment is required to cut both ends of the fiber membrane bundle. When the fiber membrane bundle is used for hemodialysis, the flatness requirement at both ends cannot be higher than 0.1mm, otherwise the filtering effect will be greatly reduced, so the technical requirements for the cutting equipment are relatively high.

[0003] The prior art discloses a hollow fiber membrane bundling and cutting device, which is a utility model patent with announcement number CN221539967U. It discloses a guide rail, a motor, a lead screw, a cutting assembly A and a cutting assembly B. The guide rail is installed on a device bracket, and the cutting assembly A and the cutting assembly B are respectively installed at both ends of the guide rail. The motor is installed on the device bracket and is located next to the guide rail. The motor drives the lead screw to rotate and drives the cutting assembly B to move along the guide rail through the lead screw, so as to adjust the cutting length of the hollow fiber membrane. The guide rail is a long slide rail. The motor provides power for the movement of the cutting assembly B through the lead screw transmission. The cutting assembly clamps the hollow fiber membrane bundle. After clamping, the cutting button is activated, and the cutting is performed by the cutting assembly A and the cutting assembly B. The prior art also discloses a silk film bundle cutting device, a utility model patent with announcement number CN201960607U, which includes a frame and blades. The two motors are installed on the upper part of the frame, and blades are respectively installed at the output ends of the two motors, and the two blades are arranged opposite to each other. A guide rod is installed on the frame, and a tray parallel to the axes of the two blades is installed on the slider, and the slider is installed on the guide rod and can move along the guide rod. The frame is located below the two blades and is equipped with a dust cover. There are still many problems in the related technologies including the above-mentioned technical solutions, such as: ① The cut end face is uneven and easily deformed into a wavy shape. The reason is that the membrane filament material is relatively soft and has a certain degree of stretching. The excess length at both ends is very easy to deform when cutting. The defective rate in the related technology is as high as 40%; ② The cutting efficiency is low. Since the cutting flatness requirements of the fiber membrane bundle are relatively high, which is related to various factors such as the loading, positioning and position accuracy of the cutting force of the fiber membrane bundle, the related technology requires manual loading, positioning, starting cutting and unloading of the fiber membrane bundle, and cannot realize automated operation, resulting in low cutting efficiency; ③ Environmental pollution and impact on product defective rate: After the end face of the fiber membrane bundle is cut, the broken silk is easy to fly around and pollute the surrounding working environment on the one hand, and it is easy to adsorb on the cross-section of the fiber membrane bundle on the other hand, blocking its filtration channel, resulting in an increase in product defective rate. Summary of the invention

[0004] The purpose of the present invention is to provide a cutting machine and cutting method for fiber membrane bundles, so as to solve the technical problems existing in the prior art when cutting fiber membrane bundles, such as unqualified cut surface flatness, low cutting efficiency, and easy environmental pollution and increased product defective rate.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A cutting machine for fiber membrane bundles, comprising:

[0007] A feeding component is used to automatically feed the product to the feeding position;

[0008] A feeding assembly is used to align the products at the feeding position with one side as the reference and then convey them to the cutting position in sequence;

[0009] The cutting assembly is used to press the product conveyed to the cutting position from the top, support it from the bottom, and cut both ends of it synchronously;

[0010] The unloading component is used to automatically unload the cut products.

[0011] Furthermore, the cutting assembly comprises:

[0012] A support table, a cutting lifting plate that can slide and lift is installed above the support table, a fixed cutting part and a mobile cutting part for loading and driving a cutter for high-speed rotary cutting are installed on the cutting lifting plate, the fixed cutting part is fixedly installed relative to the support table, the mobile cutting part is slidably installed on the support table to adjust the distance between the cutter loaded thereon and the cutter loaded on the fixed cutting part, the rotation speed of the cutter is n, and the descending speed of the cutter is v, wherein: v:n=1:4000, the unit of v is m / s, and the unit of n is rpm;

[0013] A pressing assembly, which includes a pressing part and an elastic assembly driving the pressing part to press the upper surface of the product, the elastic assembly includes a plurality of guide rods, a power plate and an elastic member, the bottom end of the guide rod is fixedly connected to the pressing part, the top end of the guide rod is slidably installed with the power plate in a vertical direction, the elastic member is sleeved on the guide rod and is located between the power plate and the pressing part, and the power part is relatively fixedly installed with the cutting lifting plate;

[0014] The supporting assembly includes a bracket and a rotating and telescopic power unit that drives the bracket to rotate and move. The bracket is provided with a plurality of supporting holes for contacting and supporting the bottom of the end of the product. The rotation of the bracket is synchronized with the feeding assembly to achieve contact support for the product transported to the cutting position.

[0015] Furthermore, the feeding assembly includes a feeding box and a rotary conveyor chain located at the bottom of the feeding box for conveying the products one by one to the cutting position, and a plurality of pallets for supporting the products and positioning them are installed on the rotary conveyor chain, and the rotary conveyor chain is located between the cutting lifting plate and the supporting table;

[0016] The feeding assembly also includes an alignment assembly, which includes an alignment power unit installed on the supporting table, and an alignment end block is installed on the power end of the alignment power unit. The alignment end block extends out to align the product in the pallet so that its other end contacts and presses against the alignment limit plate, and the alignment limit plate is installed on the supporting table.

[0017] Furthermore, the fixed cutting part includes a fixed cutting power part fixedly mounted on the cutting lifting plate and a mobile cutting power part slidably mounted on the cutting lifting plate. Cutters are installed on the power ends of the fixed cutting power part and the mobile cutting power part. Sealing covers are provided on the outside of the two cutters for sealing the rotating environment of the cutters above the cutting lifting plate. A sealing enclosure is also installed between the cutting lifting plate and the supporting table for sealing the rotating environment of the cutters below the cutting lifting plate. A dust hood is installed below the supporting table. One end of the dust hood is used to cooperate with the sealing enclosure for sealed connection, and the other end is connected to a dust collector.

[0018] Furthermore, the support plate includes a plate body, a concave hole bracket is arranged on the top of the plate body, the concave hole is arranged to have a cross section larger than a semicircle, the distance between the center of the semicircle and the lowest point of the groove is R, and the distance between the center of the semicircle and the highest point of the concave hole is H;

[0019] The feeding box is configured as a box body with an opening at the bottom and an opening at the top, which is arranged above the rotary conveyor chain and the distance between its bottom and the top of the pallet on the rotary conveyor chain is m;

[0020] The center of the bracket body is provided with a central hole fixedly mounted with the power end of the rotating and telescopic power unit, and the edge of the bracket body is provided with a plurality of supporting holes arranged symmetrically with respect to the center. The supporting holes are provided with a shape having a cross section smaller than a semicircle, and the distance from the center of the semicircle to the lowest point of the supporting hole is r, and the distance from the center of the semicircle to the highest point of the concave hole is h;

[0021] Among them, 0.85R<0.5D<R, 0.3R<H<0.5R, 0.5R<m+H<0.8R, R<r<1.1R, 0.8r<h<r, and D is the diameter of the fiber membrane bundle.

[0022] Furthermore, the loading assembly includes a loading base, on which independently rotating box loading belt and box unloading belt are installed, a horizontal arm and a vertical arm horizontally slidably installed on the horizontal arm are installed between the box loading belt and the box unloading belt, a connecting arm is vertically slidably installed on the vertical arm, and a loading suction cup for adsorbing and moving the products in the loading box and placing them in the feeding box is installed on the connecting arm.

[0023] Furthermore, the box unloading belt is installed on a lifting connecting frame, which is lifted and lowered relative to the loading base through a box unloading lifting power unit. An inclined box unloading rack is arranged below the box loading belt. When the box unloading belt descends to the lowest point along with the lifting connecting frame, the box unloading belt is flush with the end of the box unloading rack closest to it.

[0024] Furthermore, the unloading component includes a moving component installed on the supporting table and a vertical guide rail driven by the moving component for vertical and lifting movement. A moving connecting frame is installed at the bottom end of the vertical guide rail, and a number of unloading suction cups for adsorbing and moving the product are installed on the moving connecting frame.

[0025] Furthermore, the movable assembly includes a base plate, an outer frame plate and a cover plate which are stacked and installed in sequence, and a slide groove for the rotating plate to rotate and slide is formed between the base plate, the outer frame plate and the cover plate. The rotating plate is configured as a triangular plate driven to rotate by a unloading power unit, and the top of the vertical guide rail is rotatably installed with a top angle of the triangular plate through a connecting shaft. The cover plate is configured as a track groove for guiding the movement of the connecting shaft, and the track groove is configured as a U-shape. The vertical guide rail is installed on the transverse guide rail through a connecting block, and the connecting block is slidably installed on the transverse guide rail, and the vertical guide rail and the connecting block are slidably installed.

[0026] A cutting method for a cutting machine for fiber membrane bundles, the method comprising the following steps:

[0027] S1. Loading: The loading box is transported by the box loading belt to the bottom of the loading suction cup. The loading suction cup moves along the vertical arm and the horizontal arm with the connecting arm to absorb the product and then send it to the feeding position of the feeding box;

[0028] S2, feeding: the products in the feeding box move forward in sequence with the pallets on the rotary conveyor chain, and after the aligning component aligns the products, they continue to move to the cutting position;

[0029] S3, cutting: when the product reaches the cutting position, the bracket rotates until its supporting hole is located at the bottom of one end of the product protruding from the supporting plate to support it, and the cutting lifting plate descends, driving the cutter and the holding part to descend at the same time. When the holding part contacts the upper surface of the product in the supporting plate, the cutting lifting plate continues to descend. At this time, the elastic member is compressed and transmits the pressure to the holding part, which presses the upper surface of the product. At this time, the cutter rotates, and the cutting lifting plate continues to descend, and both ends of the product are cut synchronously;

[0030] S4, unloading: After cutting, the product is transported to the unloading position with the pallet. The unloading power unit drives the triangular plate to rotate, and then drives the unloading suction cup at the end of the vertical guide rail to move along the track groove. The moving route position first rises, then moves horizontally, and then descends. The product is adsorbed and moved for unloading.

[0031] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0032] (1) The present invention realizes the automated cutting operation of the fiber membrane bundle product by providing a loading component, a feeding component, a cutting component and a unloading component. By providing a movable cutting part and a fixed cutting part in the cutting component, the purpose of adjusting the distance between the cutters according to the length of the product is achieved, so as to be suitable for the cutting operation of the fiber membrane bundle products of different lengths. By providing a pressing component and a supporting component, the two components cooperate with the support plate to achieve the purpose of supporting, pressing and supporting the product and supporting the bottom of the longer end of the support plate, thereby avoiding defects such as poor flatness of the wavy cut surface and continuous cutting caused by the soft and stretchable characteristics of the product itself when cutting the product, thereby improving the cutting efficiency and greatly reducing the defect rate;

[0033] (2) The present invention fully supports, top-presses and end-supports the fiber membrane bundle product as a whole by limiting the proportional relationship between the rotation speed of the cutter and the descending speed of the cutter, the synchronous movement between the bracket and the rotary conveyor chain, and the dimensional relationship between the support plate, the feed box and the bracket, thereby ensuring that there is no movable margin in the membrane bundle during cutting, and the end is tilted when placed for cutting, thereby preventing the occurrence of situations that affect the flatness such as uncut or wavy cut surface, thereby improving the product qualification rate;

[0034] (3) The present invention provides a destaticizer and a dust remover to prevent broken silk from being adsorbed on the cross section and blocking the filtering channel during cutting, while effectively ensuring a good cutting environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0036] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0037] Figure 3 It is a schematic diagram of the three-dimensional structure of the present invention;

[0038] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure at AA in the middle;

[0039] Figure 5 for Figure 4 A schematic diagram of the partially enlarged structure at B in the middle;

[0040] Figure 6 for Figure 3 The schematic diagram of the local enlarged structure at D in the middle;

[0041] Figure 7 for Figure 2 A schematic diagram of the partially enlarged structure at C in the middle;

[0042] Figure 8It is a schematic diagram of the three-dimensional structure of the support plate in the present invention;

[0043] Fig. 9 It is a schematic diagram of the main structure of the support plate in the present invention;

[0044] Fig.10 It is a schematic diagram of the three-dimensional structure of the bracket in the present invention;

[0045] Fig.11 It is a schematic diagram of the main structure of the bracket in the present invention;

[0046] Fig.12 It is a three-dimensional structural schematic diagram of the feeding assembly of the present invention;

[0047] Fig.13 The main structural diagram of the feeding assembly of the present invention;

[0048] Fig.14 It is a three-dimensional structural schematic diagram of the blanking assembly of the present invention;

[0049] Fig.15 It is a schematic diagram of the main structure of the blanking assembly of the present invention;

[0050] Fig.16 for Fig.15 Schematic diagram of the cross-sectional structure at EE in the middle;

[0051] Fig.17 Schematic diagram of the three-dimensional structure of the rotating plate;

[0052] Fig.18 It is a schematic diagram of the three-dimensional structure of the cover plate.

[0053] In the figure, 100 is a loading assembly; 101 is a horizontal arm; 102 is a vertical arm; 103 is a connecting arm; 104 is a loading suction cup; 105 is a loading box; 106 is a loading base; 107 is a box loading belt; 108 is a box unloading belt; 109 is a lifting connecting frame; 110 is a box unloading lifting power unit; 111 is a box unloading frame;

[0054] 200, feeding assembly; 201, feeding box; 202, support plate; 2021, plate body; 2022, bracket; 2023, transition arc surface; 203, top alignment assembly; 2031, top alignment end block; 2032, top alignment power unit; 2033, top alignment limit plate;

[0055] 300, cutting assembly; 301, cutting support frame; 302, fixed cutting power unit; 303, mobile cutting power unit; 3031, slide rail; 304, cutting lifting plate; 305, supporting table; 306, partition; 307, cutting lifting power unit; 308, connecting part; 309, power plate; 310, guide column; 311, elastic member; 312, holding part; 313, guide rod; 314, cutter; 315, rotating telescopic power unit; 316, bracket; 3161, bracket body; 3162, bracket hole; 317, dust collecting cover; 318, sealing cover body; 319, sealing enclosure;

[0056] 400, blanking assembly; 401, bottom plate; 402, outer frame plate; 403, cover plate; 4031, track groove; 404, vertical guide rail; 405, connecting block; 406, horizontal guide rail; 407, movable connecting frame; 408, blanking suction cup; 409, rotating plate. DETAILED DESCRIPTION

[0057] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0058] The drawings are for illustrative purposes only and should not be construed as limiting the present patent;

[0059] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present application. The singular forms "a", "the" and "the" used in the embodiments of the present application and the appended claims are not intended to limit the embodiments of the present application.

[0060] "The" is also intended to include plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

[0061] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.

[0062] In the description of this application, it should be understood that the terms "first", "second", "third", etc. are only used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence, nor can they be understood as indicating or implying relative importance. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0063] In addition, in the description of the present application, unless otherwise specified, "plurality" means two or more. "and / or",

[0064] Describing the association relationship of associated objects, it means that there can be three kinds of relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0065] In order to solve the limitations of the prior art, this embodiment provides a technical solution, and the technical solution of the present invention is further described below in conjunction with the drawings and embodiments.

[0066] The present invention is mainly aimed at solving the problems in the prior art of cutting the two ends of the fiber membrane bundle product, such as the low cutting efficiency and high cutting defect rate caused by the poor flatness of the cut surface and the poor overall automation. The main reason for the existence of the above-mentioned problems is based on the soft characteristics of the fiber membrane bundle product itself and its certain tensile properties. When it is necessary to cut off a large amount of excess at both ends of the fiber membrane bundle, the two ends of the fiber membrane bundle are easily deformed when the cutter 314 is cutting, resulting in poor flatness of the cut surface at both ends of the product during cutting, and the situation of being unable to cut or the cut surface being wavy. Conventional fiber membrane bundle products need to be cut at both ends. The main processing method of the present invention is to first align one end of the product as a reference, and then auxiliary support the bottom of the end with a longer excess, and at the same time press the upper surface of the product to solve the problem in the prior art that the end with a longer excess is very likely to be warped or deformed during cutting, resulting in being unable to cut or the cut surface being wavy.

[0067] See attached Figure 1-3 , a cutting machine for fiber membrane bundles, comprising:

[0068] See attached Fig.12 and attached Fig.13, a loading assembly 100 is used to automatically load the product to the feeding position; specifically, the loading assembly 100 includes a loading base 106, where the loading base 106 is constructed using a frame, and a box loading belt 107 and a box unloading belt 108 that rotate independently are installed on the loading base 106, and the box loading belt 107 and the box unloading belt 108 both use conveyor belts and are driven by their own motors to rotate, and a horizontal arm 101 and a water pump are installed in the gap between the box loading belt 107 and the box unloading belt 108. The vertical arm 102 is slidably mounted on the horizontal arm 101, and the connecting arm 103 is vertically slidably mounted on the vertical arm 102. The connecting arm 103 is installed with a loading suction cup 104 for sucking and moving the products in the loading box 105 and placing them in the feeding box 201. It can be understood here that the horizontal arm 101 is fixedly mounted on the loading base 106, the vertical arm 102 is slidably mounted on the horizontal arm 101 driven by a motor, and the connecting arm 103 is slidably mounted on the vertical arm 102 driven by a motor. The box unloading belt 108 is installed on the lifting connecting frame 109, and the lifting connecting frame 109 is installed relative to the loading base 106 through the box unloading lifting power unit 110. Here, the box unloading lifting power unit 110 adopts a linear cylinder, and the linear cylinder is fixedly installed on the loading base 106. The power end of the linear cylinder is fixedly installed on the lifting connecting frame 109, driving the lifting connecting frame 109 to perform lifting movement. An inclined box unloading rack 111 is arranged below the box loading belt 107. When the box unloading belt 108 descends to the lowest point with the lifting connecting frame 109, the box unloading belt 108 is flush with the end of the box unloading rack 111 that is closest to it. Here, a number of equally spaced rollers are arranged on the box unloading rack 111.

[0069] See attached Figure 2 , Figure 7 , Figure 8 and Fig. 9The feeding assembly 200 is used to align the products at the feeding position with one side as the reference and then convey them to the cutting position in sequence. It can be understood here that after the products are sucked by the loading suction cup 104 and conveyed to the feeding box 201, due to the continuous forward conveying of the rotary conveyor chain, the products fall into the support plate 202 of the rotary conveyor chain in sequence and are then conveyed forward to the cutting position. Before entering the cutting position, the products are tightened by the aligning assembly 203 so that one end of the products is aligned with the aligning limit plate 2033 as the reference; specifically, the feeding assembly 200 includes a feeding box 201 and a rotary conveyor chain located at the bottom of the feeding box 201 to limit the products one by one and convey them to the cutting position, and the rotary conveyor chain is installed A plurality of pallets 202 are provided for supporting the products and positioning them, and the rotary conveyor chain is located between the cutting lifting plate 304 and the supporting table 305; the feeding assembly 200 also includes an alignment assembly 203, and the alignment assembly 203 includes an alignment power unit 2032 installed on the supporting table 305, and an alignment end block 2031 is installed at the power end of the alignment power unit 2032, and the alignment power unit 2032 here can adopt a linear cylinder, and the alignment end block 2031 extends out to perform an alignment action on the product in the pallet 202 so that its other end contacts and is close to the alignment limit plate 2033, and the alignment limit plate 2033 is installed on the supporting table 305.

[0070] See attached Figure 1-6The cutting assembly 300 is used to press the product conveyed to the cutting position from the top, support the bottom, and cut both ends of the product synchronously. It can be understood that before the product is cut at both ends, in addition to the bottom being limited by the support plate 202, the top is also pressed by the holding part 312. In addition, since one end of the product has been aligned in the feeding assembly 200, the bottom of the end with a longer surplus is supported by the supporting assembly to prevent the phenomenon of continuous cutting or cutting deformation due to excessive surplus during cutting. Specifically, the cutting assembly 300 includes: a cutting support frame 301, which is constructed of steel sections, a support table 305 and a transverse partition 306 are horizontally installed on the cutting support frame 301, and a sliding and lifting cutting lifting plate 304 is installed above the support table 305. Here, the sliding and lifting of the cutting lifting plate 304 is driven by a cutting lifting power unit 307 installed on the transverse partition 306. Specifically, the cutting lifting power unit 307 adopts a servo electric cylinder, which The cutting lifting plate 304 is installed on the diaphragm 306, and its power end is fixedly installed with the power plate 309, and the power plate 309 is fixedly installed with the cutting lifting plate 304 through the connecting part 308, so that the servo electric cylinder drives the cutting lifting plate 304 to move up and down. At the same time, four guide pillars 310 are installed between the support plate 305 and the diaphragm 306, and the cutting lifting plate 304 is penetrated by the four guide pillars 310 and is slidably installed along the guide pillars 310. The cutting lifting plate 304 is equipped with a device for loading and driving the cutter 314 to rotate at high speed to cut The fixed cutting part and the mobile cutting part are fixedly installed relative to the support plate 305, and the mobile cutting part is slidably installed on the support plate 305 to adjust the distance between the cutter 314 loaded thereon and the cutter 314 loaded on the fixed cutting part. The sliding installation of the mobile cutting part can be realized in the form of a slide rail 3031. The rotation speed of the cutter 314 is n, and the descending speed of the cutter 314 is v, wherein: v:n=1:4000, 0.1m / s<v<0.3m / s, 400 r / min<n<800r / min, preferably, the rotation speed of the cutter 314 is n=600r / min, and the descending speed of the cutter 314 is v=0.15m / s; a pressing component, which includes a pressing part 312 and an elastic component that drives the pressing part 312 to press the upper surface of the product, and the elastic component includes a plurality of guide rods 313, a power plate 309 and an elastic member 311. The bottom end of the guide rod 313 is fixedly connected to the pressing part 312, and the top end of the guide rod 313 is slidably installed with the power plate 309 in the vertical direction. The elastic member 311 is sleeved on the guide rod 313 and is located between the power plate 309 and the pressing part 312. The power part is relatively fixedly installed with the cutting lifting plate 304. It can be understood here that the guide rod 313 penetrates the power plate 309 and slides along the power plate 309. A limit block is installed on the top of the guide rod 313 to limit the upward movement trend of the power plate 309 relative to the guide rod 313; see attached Fig.10 and attached Fig.11 , a supporting assembly, which includes a bracket 316 and a rotating and telescopic power unit 315 that drives the bracket 316 to rotate and move. The rotating and telescopic power unit 315 here can be a rotating cylinder or a motor or other rotating power components. A plurality of supporting holes 3162 are provided on the bracket 316 for contacting and supporting the bottom of the end of the product. The bracket 316 rotates synchronously with the feeding assembly 200 to achieve contact and support for the product transported to the cutting position. It can be understood here that every time the support plate 202 of the feeding assembly 200 moves a workstation, the bracket 316 rotates an angle so that the next supporting hole 3162 corresponds to the bracket groove 2022 of the support plate 202. The fixed cutting part includes a fixed cutting power part 302 fixedly mounted on the cutting lifting plate 304 and a mobile cutting power part 303 slidably mounted on the cutting lifting plate 304. Both the fixed cutting power part 302 and the mobile cutting power part 303 adopt servo motors and both power ends are equipped with cutters 314. The outsides of the two cutters 314 are provided with sealing covers 318 for sealing the rotating environment of the cutters 314 above the cutting lifting plate 304. The top of the inner cavity of the sealing cover 318 is equipped with a static eliminator (not shown in the drawings). It is used to blow away static electricity on the cut surface of the cutter 314. A sealing enclosure 319 is also installed between the cutting lifting plate 304 and the supporting table 305 to seal the rotating environment of the cutter 314 below the cutting lifting plate 304. Here, the sealing enclosure 319 seals the cutting space between the cutting lifting plate 304 and the supporting table 305. A dust hood 317 is installed below the supporting table 305. One end of the dust hood 317 is used to cooperate with the sealing enclosure 319 for sealed connection, and the other end is connected to a dust collector (not shown in the drawings).

[0071] See attached Figure 14-18, the unloading assembly 400 is used to automatically unload the cut products. Specifically, the unloading assembly 400 includes a moving assembly installed on the support plate 305 and a vertical guide rail 404 driven by the moving assembly to move vertically and lift. A moving connecting frame 407 is installed at the bottom end of the vertical guide rail 404. A number of unloading suction cups 408 for adsorbing and moving the products are installed on the moving connecting frame 407. The unloading suction cups 408 and the loading suction cups 104 involved in this application are both EPDM (ethylene propylene diene monomer) rubber foam sponge suction cups. The moving assembly includes a base plate 401, an outer frame plate 402 and a cover plate 403 which are stacked and installed in sequence. A slide groove for a rotating plate (409) to rotate and slide is formed between the base plate 401, the outer frame plate 402 and the cover plate 403. The rotating plate (409) is configured as a triangular plate driven to rotate by a material unloading power unit. Here, the material unloading power unit adopts a rotary cylinder or a rotary motor. The top of the vertical guide rail 404 is rotatably installed with a top angle of the triangular plate through a connecting shaft. The cover plate 403 is configured with a track groove 4031 for guiding the movement of the connecting shaft. The track groove 4031 is configured as a U-shape. The vertical guide rail 404 is connected to the vertical guide rail 404 by a rotating cylinder or a rotating motor. The connecting block 405 is installed on the transverse guide rail 406, and the connecting block 405 is slidably installed on the transverse guide rail 406. The vertical guide rail 404 is slidably installed with the connecting block 405. It can be understood here that when the unloading power unit rotates, the rotating plate (409) is driven to rotate, and the rotation drives the vertical guide rail 404 to move along the track groove 4031. Under the action of the connecting block 405 and the transverse guide rail 406, the vertical guide rail 404 can only move along the track groove 4031 in a U-shaped route, thereby realizing the actions of adsorption, lifting, moving, lowering, and releasing the product, and completing the product unloading operation.

[0072] See attached Figure 8 and attached Fig. 9 The support plate 202 includes a plate body 2021, a concave hole bracket 2022 is arranged on the top of the plate body 2021, a transition arc surface 2023 is arranged at the corner between the bracket 2022 and the upper surface of the plate body 2021, the transition arc surface 2023 is arranged as a rounded corner or a chamfer, the concave hole is arranged to have a cross section larger than a semicircle, the distance from the center of the semicircle to the lowest point of the groove is R, and the distance from the highest point of the concave hole is H; see the attached Figure 1 and attached Figure 3 The feeding box 201 is configured as a box body with an opening at the bottom and an opening at the top. The feeding box 201 is configured above the rotary conveyor chain and the distance between the bottom thereof and the top of the support plate 202 on the rotary conveyor chain is m; see the attached Fig.10 and attached Fig.11The center of the support body 3161 of the bracket 316 is provided with a center hole fixedly mounted with the power end of the rotating and telescopic power unit 315. Here, the rotating and telescopic power unit 315 can adopt a rotating and telescopic cylinder. The edge of the support body 3161 is provided with a plurality of support holes 3162 arranged symmetrically with respect to the center. In this embodiment, the number of the support holes 3162 is four. The support holes 3162 are arranged in a shape with a cross section smaller than a semicircle. The distance from the center of the semicircle to the lowest point of the support hole 3162 is r, and the distance from the highest point of the concave hole is h; wherein, 0.85R<0.5D<R, 0.3R<H<0.5R, 0.5R<m+H<0.8R, R<r<1.1R, 0.8r<h<r, D is the diameter of the fiber membrane bundle. By limiting the bracket 2022 of the support plate 202, the distance between the feed box 201 and the rotary conveyor chain, and the shape and size of the support hole 3162 of the bracket 316, the various components cooperate with each other to achieve sufficient positioning and limiting of the product during cutting, thereby ensuring a good cutting effect and improving the cutting yield.

[0073] When the present invention performs cutting operation on both ends of the fiber membrane bundle product, the specific working steps are as follows:

[0074] S1. Loading: The fiber membrane bundle products to be cut are stored in the loading box 105, which is transported to the bottom of the loading suction cup 104 by the box loading belt 107. The loading suction cup 104 moves along the vertical arm 102 and the horizontal arm 101 with the connecting arm 103 to absorb the products and then deliver them to the feeding position of the feeding box 201;

[0075] S2, feeding: the products in the feeding box 201 move forward in sequence with the pallet 202 on the rotary conveyor chain, and after the top-aligning component 203 is actuated to align the products, the products continue to move to the cutting position. Specifically, due to the size relationship between the distance m between the bottom of the feeding box 201 and the rotary conveyor chain and the products, the products in the feeding box 201 fall into the bracket 2022 of the pallet 202 of the rotary conveyor chain in sequence, and are transported forward with the rotary conveyor chain. When the sensor detects that the product moves to the top-aligning component 203, the top-aligning component 203 is actuated to push the product to the top-aligning limit plate 2033, and then continue to move forward;

[0076] S3, cutting: when the product reaches the cutting position, the bracket 316 rotates until its supporting hole 3162 is located at the bottom surface of the end of the product protruding from the support plate 202, and supports it, and the cutting lifting plate 304 descends, and at the same time drives the cutter 314 and the holding part 312 to descend. When the holding part 312 contacts the upper surface of the product in the support plate 202, the cutting lifting plate 304 continues to descend. At this time, the elastic member 311 is compressed and transmits the pressure to the holding part 312, and the holding part 312 presses the upper surface of the product. At this time, the cutter 314 rotates, and the cutting lifting plate 304 continues to descend, and the two ends of the product are cut synchronously;

[0077] S4, unloading: the cut product is transported to the unloading position along with the support plate 202, and the unloading power unit drives the triangular plate to rotate, thereby driving the unloading suction cup 408 at the end of the vertical guide rail 404 to move along the track groove 4031. The moving route position first rises, then moves horizontally, and then descends, and the product is adsorbed and moved for unloading.

[0078] The technical solution of this application is used to cut both ends of the same batch of fiber membrane bundle products, with a flatness of no more than 0.05mm, a defective rate of no more than 1‰, and a cycle time of 2.2-2.5s / piece. However, the conventional cutting equipment disclosed in the prior art has a flatness of more than 0.2mm, a defective rate of more than 30%, and a cycle time of 7-8s / piece.

[0079] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0080] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cutting machine for fiber membrane bundles, comprising: The loading assembly (100), the unloading assembly (400) and the cutting assembly (300) are characterized by further comprising: A feeding assembly (200) is used to align products at a feeding position with one side as a reference and then sequentially convey them to a cutting position. The feeding assembly (200) comprises a feeding box (201) and a rotary conveyor chain located at the bottom of the feeding box (201) and used to limit the position of the products one by one and convey them to the cutting position. A plurality of support plates (202) are installed on the rotary conveyor chain and are used to support the products and position them. The rotary conveyor chain is located between a cutting lifting plate (304) and a supporting table (305); A cutting assembly (300) is used to press the product conveyed to the cutting position from the top, support it from the bottom, and cut both ends of the product synchronously; The cutting assembly (300) comprises: A support plate (305), a cutting lifting plate (304) that can be slid and lifted is installed above the support plate (305), a fixed cutting part and a movable cutting part that are used to load and drive a cutting knife (314) for high-speed rotary cutting are installed on the cutting lifting plate (304), the fixed cutting part is fixedly installed relative to the support plate (305), and the movable cutting part is slidably installed on the support plate (305) to adjust the distance between the cutting knife (314) loaded thereon and the cutting knife (314) loaded on the fixed cutting part; A pressing component, the pressing component comprising a pressing portion (312) and an elastic component driving the pressing portion (312) to press the upper surface of the product, the elastic component comprising a plurality of guide rods (313), a power plate (309) and an elastic member (311), the bottom end of the guide rod (313) being fixedly connected to the pressing portion (312), the top end of the guide rod (313) being slidably mounted on the power plate (309) in a vertical direction, the elastic member (311) being sleeved on the guide rod (313) and being located between the power plate (309) and the pressing portion (312), and the power plate (309) being relatively fixedly mounted to the cutting lifting plate (304); A support assembly, the support assembly comprising a bracket (316) and a rotating and telescopic power unit (315) for driving the bracket (316) to rotate and move, the bracket (316) being provided with a plurality of supporting holes (3162) for contacting and supporting the bottom of the end of a product, the bracket (316) rotating synchronously with the feeding assembly (200) to achieve contact and support of the product conveyed to the cutting position, and when the product reaches the cutting position, the bracket (316) rotates until its supporting hole (3162) is located at the bottom of one end of the product protruding from the support plate (202) to support the product.

2. A cutting machine for fiber membrane bundles according to claim 1, characterized in that: The rotation speed of the cutter (314) is n, and the descending speed of the cutter (314) is v, wherein: v:n=1:4000, the unit of v is meter / second, and the unit of n is revolution / minute.

3. A cutting machine for fiber membrane bundles according to claim 2, characterized in that: The feeding assembly (200) further comprises an alignment assembly (203), the alignment assembly (203) comprising an alignment power unit (2032) mounted on a supporting table (305), an alignment end block (2031) being mounted on a power end of the alignment power unit (2032), the alignment end block (2031) extending out to perform an alignment action on the product in the support plate (202) so that the other end thereof contacts and abuts against an alignment limit plate (2033), and the alignment limit plate (2033) being mounted on the supporting table (305).

4. A cutting machine for fiber membrane bundles according to claim 3, characterized in that: The fixed cutting part comprises a fixed cutting power part (302) fixedly mounted on the cutting lifting plate (304) and a movable cutting power part (303) slidably mounted on the cutting lifting plate (304); a cutter (314) is mounted on the power end of each of the fixed cutting power part (302) and the movable cutting power part (303); a sealing cover (318) is arranged outside each of the two cutters (314) for sealing the rotation environment of the cutter (314) above the cutting lifting plate (304); a sealing enclosure (319) is also installed between the cutting lifting plate (304) and the supporting table (305) for sealing the rotation environment of the cutter (314) below the cutting lifting plate (304); a dust collecting cover (317) is installed below the supporting table (305); one end of the dust collecting cover (317) is used to cooperate with the sealing enclosure (319) for sealing communication, and the other end is connected to a dust collector.

5. A cutting machine for fiber membrane bundles according to claim 4, characterized in that: The support plate (202) comprises a plate body (2021), a concave hole bracket (222) being arranged on the top of the plate body (2021), the concave hole being arranged in a shape with a cross section larger than a semicircle, the distance between the center of the semicircle and the lowest point of the groove being R, and the distance between the center of the semicircle and the highest point of the concave hole being H; The feeding box (201) is configured as a box body with an opening at the bottom and the opening at the top, and is arranged above the rotary conveyor chain, with the distance between the bottom thereof and the top of the support plate (202) on the rotary conveyor chain being m; A center hole is arranged at the center of the support body (3161) of the bracket (316) to be fixedly mounted on the power end of the rotating and telescopic power unit (315); a plurality of support holes (3162) are arranged symmetrically at the center of the support body (3161); the support holes (3162) are arranged in a shape with a cross section smaller than a semicircle; the distance from the center of the semicircle to the lowest point of the support hole (3162) is r, and the distance from the center of the semicircle to the highest point of the concave hole is h; Among them, 0.85R<0.5D<R, 0.3R<H<0.5R, 0.5R<m+H<0.8R, R<r<1.1R, 0.8r<h<r, and D is the diameter of the fiber membrane bundle.

6. A cutting machine for fiber membrane bundles according to claim 5, characterized in that: The loading assembly (100) includes a loading base (106), on which are mounted independently rotating box loading belts (107) and box unloading belts (108), between which are mounted a horizontal arm (101) and a vertical arm (102) horizontally slidably mounted on the horizontal arm (101), on which is mounted a connecting arm (103) vertically slidably mounted, and on which is mounted a loading suction cup (104) for sucking and moving products in a loading box (105) and placing them in a feeding box (201).

7. A cutting machine for fiber membrane bundles according to claim 6, characterized in that: The box unloading belt (108) is installed on the lifting connection frame (109), and the lifting connection frame (109) is relatively lifted and lowered with the loading base (106) through the box unloading lifting power unit (110). An inclined box unloading frame (111) is arranged below the box loading belt (107). When the box unloading belt (108) descends to the lowest point along with the lifting connection frame (109), the box unloading belt (108) is flush with the box unloading frame (111) at the end closest to it.

8. A cutting machine for fiber membrane bundles according to claim 7, characterized in that: The material unloading component (400) comprises a moving component mounted on a supporting table (305) and a vertical guide rail (404) driven by the moving component to move vertically and lift, a moving connecting frame (407) being mounted at the bottom end of the vertical guide rail (404), and a plurality of material unloading suction cups (408) for adsorbing and moving products being mounted on the moving connecting frame (407).

9. A cutting machine for fiber membrane bundles according to claim 8, characterized in that: The moving assembly comprises a base plate (401), an outer frame plate (402) and a cover plate (403) which are stacked and installed in sequence. A slide groove for a rotating plate (409) to rotate and slide is formed between the base plate (401), the outer frame plate (402) and the cover plate (403). The rotating plate (409) is configured as a triangular plate driven to rotate by a material unloading power unit. The top of the vertical guide rail (404) is rotatably installed with a vertex of the triangular plate via a connecting shaft. The cover plate (403) is configured as a track groove (4031) for guiding the movement of the connecting shaft. The track groove (4031) is configured as a U-shape. The vertical guide rail (404) is installed on the transverse guide rail (406) via a connecting block (405). The connecting block (405) is slidably installed on the transverse guide rail (406). The vertical guide rail (404) and the connecting block (405) are slidably installed.

10. A cutting method for a cutting machine for fiber membrane bundles, based on the cutting machine for fiber membrane bundles according to claim 9, characterized in that: The steps of this method are: S1, loading: the loading box (105) is transported by the box loading belt (107) to the bottom of the loading suction cup (104), and the loading suction cup (104) moves along the vertical arm (102) and the horizontal arm (101) with the connecting arm (103) to absorb the product and then deliver it to the feeding position of the feeding box (201); S2, feeding: the products in the feeding box (201) move forward in sequence along with the pallet (202) on the rotary conveyor chain, and after the aligning component (203) is actuated to align the products, the products continue to move to the cutting position; S3, cutting: when the product reaches the cutting position, the bracket (316) rotates until its supporting hole (3162) is located at the bottom surface of one end of the product protruding from the supporting plate (202) to support it, and the cutting lifting plate (304) descends, driving the cutter (314) and the holding portion (312) to descend at the same time. When the holding portion (312) contacts the upper surface of the product in the supporting plate (202), the cutting lifting plate (304) continues to descend. At this time, the elastic member (311) is compressed and transmits the pressure to the holding portion (312). The holding portion (312) presses the upper surface of the product. At this time, the cutter (314) rotates, and the cutting lifting plate (304) continues to descend, and both ends of the product are cut synchronously. S4, unloading: After the cutting is completed, the product is transported to the unloading position along with the support plate (202). The unloading power unit drives the triangular plate to rotate, thereby driving the unloading suction cup (408) at the end of the vertical guide rail (404) to move along the track groove (4031). The moving track position first rises, then moves horizontally, and then descends, so that the product is adsorbed and then moved for unloading.

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