Sterile protective sleeve threading machine and automatic threading method

Abstract

The application discloses a sterile protective sleeve rope threading machine and an automatic rope threading method, and is applied to the technical field of protective sleeve rope threading equipment.The technical scheme points are as follows: deviation rectifying components, material pulling and cutting devices and material belt length fixing devices are fixed on a base along the transmission direction of the protective sleeve;two pairs of protective sleeve rope threading devices are symmetrically fixed on both ends of the base along the transmission direction of the protective sleeve;the protective sleeve rope threading device comprises vacuum adsorption components and heat sealing edge components which are symmetrically arranged along the vertical direction;the base is fixed with a material collecting assembly line and a translation device which are arranged along the direction perpendicular to the transmission direction of the protective sleeve between the two groups of protective sleeve rope threading devices;and a winding material collecting device is fixed between the protective sleeve rope threading devices of the same side threading station.The application has the technical effect of high production efficiency and good production quality stability.

Description

Technical Field

[0001] This invention relates to the field of protective sleeve threading equipment, and in particular to a sterile protective sleeve threading machine and an automatic threading method. Background Technology

[0002] Medical devices are usually stored in a transparent protective sleeve for easy preservation. The length of the protective sleeve usually varies depending on the size of the medical device. When producing medical protective sleeves, in order to facilitate the storage and retrieval of medical devices, the protective sleeve is usually designed as a drawstring type. By threading a drawstring through the opening of the protective sleeve during the production process, when it is necessary to tighten the opening of the protective sleeve, it can be done simply by pulling both ends of the drawstring.

[0003] Currently, protective sleeves are mainly produced manually by threading the ropes. When producing protective sleeves of different lengths, workers also need to measure and cut the sleeves before threading the ropes. This greatly reduces production efficiency and increases production costs. Furthermore, manually produced protective sleeves have poor quality stability, and the opening of the sleeves is prone to uneven welding, affecting the normal use of the protective sleeves. Therefore, it is necessary to provide a protective sleeve rope threading machine with high production efficiency and stable production quality. Summary of the Invention

[0004] The primary objective of this invention is to provide a sterile protective sleeve threading machine, which has the advantages of high production efficiency and good production quality stability.

[0005] The above-mentioned technical objective of the present invention is achieved through the following technical solution: a sterile protective sleeve rope threading machine, comprising a base and a protective sleeve feeding roller fixedly disposed at one end of the base; a correction component, a material pulling and cutting device, and a material strip length fixing device are respectively fixedly disposed on the base along the transmission direction of the protective sleeve; two pairs of protective sleeve rope threading devices are symmetrically fixed at both ends of the base along the transmission direction of the protective sleeve; the protective sleeve rope threading device includes a vacuum adsorption component and a heat sealing component symmetrically disposed along the vertical direction, and also includes a rope winding component and a folding component; the two protective sleeve rope threading devices at one end along the transmission direction of the protective sleeve are symmetrically disposed to realize the sealing or rope threading operation at both ends of the protective sleeve; a receiving conveyor line disposed perpendicular to the transmission direction of the protective sleeve and a translation device for transferring the cut protective sleeve from the cutting station to the rope threading station are fixedly disposed between the two sets of protective sleeve rope threading devices on the base; a winding receiving device is fixedly disposed between the protective sleeve rope threading devices at the rope threading station on the same side to wind and transport the rope-threaded protective sleeve to the receiving conveyor line.

[0006] The invention is further configured such that: the material pulling and cutting device is provided with a tensioning component, a folding edge die-cutting component, a die-cutting waste removal component, a pressing component, and a cutting component along the conveying direction of the protective sleeve; the folding edge die-cutting component includes a mounting plate fixedly connected to the base; a lower die base for supporting the protective sleeve and an upper die-cutting component fixedly connected to the base for die-cutting a folding edge on the protective sleeve are fixedly provided on the mounting plate; the upper die-cutting component includes a die-cutting seat fixedly connected to the base; a die-cutting cylinder is fixedly provided on the die-cutting seat along the vertical direction; a die-cutting plate is fixedly provided at the telescopic end of the die-cutting cylinder; a die-cutting groove is opened in the die-cutting plate; and a die-cutting block cooperating with the die-cutting groove is fixedly provided on the lower die base; the die-cutting waste removal component includes waste removal cylinders symmetrically fixedly arranged at both ends of the mounting plate along the conveying direction of the protective sleeve; a first synchronous clamping cylinder for clamping the folding edge waste is fixedly provided at the telescopic end of the waste removal cylinder; and a first clamping block is fixedly provided at the clamping end of the first synchronous clamping cylinder; the mounting plate... The plate has a waste discharge hole. The clamping assembly includes a clamping seat fixedly mounted on the base and a clamping cylinder fixedly connected to the clamping seat in the vertical direction. A clamping block is fixedly connected to the telescopic end of the clamping cylinder. A protective sleeve support roller is fixedly mounted on one end of the clamping seat near the edge die-cutting assembly. The cutting assembly includes a cutting seat fixedly connected to the base. An upper cutting seat and a lower cutting seat are slidably connected to the cutting seat in the vertical direction. A lower support plate is fixedly mounted on the lower cutting seat. An upper support plate is floatingly connected to the upper cutting seat based on several floating springs. A limiting plate is fixedly mounted on the upper cutting seat. When the floating springs are in the initial state, the distance between the surface of the upper support plate and the lower support plate is less than the distance between the bottom of the limiting plate and the lower support plate. A cutting cylinder slide is fixedly mounted on the top of the cutting seat along the direction perpendicular to the protective sleeve conveying direction. A cutting knife is fixedly mounted on the cutting cylinder slide, flush with the end face of the limiting plate away from the clamping assembly.

[0007] The present invention is further configured such that: the material strip length fixing device includes a length fixing slide table slidably connected to the base along the conveying direction of the protective sleeve; a second synchronous clamping cylinder is symmetrically fixed at one end of the length fixing slide table near the material pulling and cutting device; a second clamping block is fixedly fixed at the clamping end of the second synchronous clamping cylinder; a drive rack is fixedly fixed at the side end of the length fixing slide table; a length fixing drive motor is fixedly connected to the base; and a drive gear that cooperates with the drive rack is fixedly connected to the output shaft of the length fixing drive motor.

[0008] The invention is further configured such that: the translation device includes a translation seat fixedly connected to the base along the direction perpendicular to the transmission direction of the protective sleeve; an upper translation cylinder slide and a lower translation cylinder slide are respectively fixedly arranged on the translation seat along the vertical direction; an upper pre-tightening component and a lower pre-tightening component are respectively slidably connected to the upper translation cylinder slide and the lower translation cylinder slide; the upper pre-tightening component and the lower pre-tightening component have the same structure, each including a pre-tightening seat slidably connected to the translation seat; a pre-tightening cylinder and a pre-tightening plate fixedly connected to the telescopic end of the pre-tightening cylinder are respectively fixedly arranged at both ends of the pre-tightening seat along the direction parallel to the transmission direction of the protective sleeve; a pre-tightening electric cylinder is fixedly arranged on the pre-tightening seat along the vertical direction; a pre-tightening mounting plate is fixedly connected to the telescopic end of the pre-tightening electric cylinder; a plurality of pre-tightening rollers are evenly arranged side by side on the pre-tightening mounting plate along the direction parallel to the transmission direction of the protective sleeve; the pre-tightening rollers on the upper pre-tightening component and the pre-tightening rollers on the lower pre-tightening component are staggered.

[0009] The present invention is further configured such that: the protective sleeve rope threading device further includes a rope threading seat fixedly connected to the base; the vacuum adsorption assembly includes a quick-acting cylinder fixedly connected to the rope threading seat in a vertical direction and a quick-acting plate fixedly connected to the quick-acting cylinder; a micro-acting cylinder is fixedly provided on the quick-acting plate; a vacuum adsorption plate is fixedly provided at the telescopic end of the micro-acting cylinder; and the heat sealing assembly includes an edge sealing cylinder fixedly connected to the rope threading seat and an edge sealing plate fixedly connected to the telescopic end of the edge sealing cylinder; a welding joint is fixedly provided on the edge sealing plate.

[0010] The present invention is further configured such that: the rope winding assembly includes a material strip assembly fixedly disposed on the rope threading seat; a material strip guide wheel assembly, a material strip clamping assembly, a material strip cutting assembly, a first rope pulling assembly, and a second rope pulling assembly are respectively provided along the transmission direction of the plastic rope; the material strip clamping assembly includes a third synchronous clamping cylinder fixedly connected to the rope threading seat and a third clamping block fixedly connected to the clamping end of the third synchronous clamping cylinder; an extended clamping block is fixedly provided at the end of the third clamping block away from the material strip guide wheel assembly to facilitate clamping by the first rope pulling assembly; the first rope pulling assembly includes a material strip assembly fixedly disposed on the upper surface of the protective sleeve along a direction perpendicular to the conveying direction of the protective sleeve. The first cylinder slide is above and a fourth synchronous clamping cylinder is fixedly connected to the sliding end of the first cylinder slide. The clamping end of the fourth synchronous clamping cylinder is fixedly provided with a fourth clamping block. The second pull rope assembly includes a second cylinder slide fixedly disposed below the lower surface of the protective sleeve along a direction perpendicular to the conveying direction of the protective sleeve and a lifting cylinder fixedly connected to the sliding end of the second cylinder slide along a vertical direction. The telescopic end of the lifting cylinder is fixedly connected with a connecting plate. A pull rope cylinder disposed along a horizontal direction is fixedly disposed on the connecting plate. A fifth synchronous clamping cylinder is fixedly disposed on the telescopic end of the pull rope cylinder. A fifth clamping block is fixedly disposed on the clamping end of the fifth synchronous clamping cylinder.

[0011] The present invention is further configured such that: the folding assembly includes a folding seat fixedly connected to the rope threading seat; a sliding plate is slidably connected to the folding seat along a transmission direction parallel to the protective sleeve; and a sliding cylinder is fixedly provided for driving the sliding plate to slide on the folding seat; a shaping assembly for inserting into the protective sleeve and a folding opening folding assembly are fixedly provided on the sliding plate; and a folding opening warping assembly is fixedly provided on the rope threading seat along a direction perpendicular to the transmission direction of the protective sleeve for pressing and adhering the plastic rope directly above the protective sleeve to the bottom of the folding opening of the protective sleeve, thereby causing the folding opening of the protective sleeve to warp and facilitating folding of the folding opening folding assembly.

[0012] The invention is further configured such that: the shaping component includes a shaping plate fixedly connected to the sliding plate along a transmission direction parallel to the protective sleeve, for inserting into the protective sleeve; the end of the shaping plate away from the sliding plate has a flat structure to facilitate insertion into the protective sleeve; the folding edge assembly includes a bidirectional synchronous folding cylinder fixedly connected to the sliding plate and a folding plate fixedly connected to the sliding end of the bidirectional synchronous folding cylinder; the shaping plate has a receiving groove for accommodating the folding plate so that the surface of the folding plate is flush with the surface of the shaping plate; and the sliding plate is fixedly provided with a bidirectional synchronous folding cylinder for pushing the cylinder in the flared state of the protective sleeve. The folding cylinder moves towards the protective sleeve, causing the folded edge of the protective sleeve to fold. The folded edge warping assembly includes a third cylinder slide fixedly mounted on the rope threading seat along a direction perpendicular to the conveying direction of the protective sleeve. A pressure plate is slidably connected to the third cylinder slide. A side positioning plate is fixedly mounted on the pressure plate to position the two ends of the plastic rope to prevent the plastic rope from deviating. A warping cylinder is fixedly mounted on the rope threading seat along a vertical direction. The telescopic end of the warping cylinder is fixedly mounted with a warping pressure rod for pressing the plastic rope against the pressure plate, thereby driving the plastic rope to press the folded edge of the protective sleeve to achieve the warping of the folded edge.

[0013] The invention is further configured such that: the winding and collecting device includes a mounting frame fixedly connected to the base and a collecting frame slidably connected to the mounting frame in the vertical direction; a lifting cylinder is fixedly provided on the mounting frame for driving the collecting frame to slide in the vertical direction; several first collecting rods are symmetrically fixed at both ends of the collecting frame and arranged in the horizontal direction for supporting the bottom surface of the protective sleeve; a winding disc and a winding motor for driving the winding disc to rotate are rotatably connected at the middle position of the collecting frame; a set of second collecting rods are symmetrically fixed on the winding motor; the distance between the second collecting rods and the base is lower than the distance between the first collecting rods and the base.

[0014] The second objective of this invention is to provide an automatic rope threading method for sterile protective sleeves, which has the advantages of high production efficiency and good production quality stability.

[0015] The above-mentioned technical objective of this invention is achieved through the following technical solution: an automatic threading method for sterile protective sleeves, using a sterile protective sleeve threading machine as described in any of the above technical solutions; comprising:

[0016] Step 1: The protective sleeve is output from the protective sleeve feeding roller and passes through the correction component into the material pulling and cutting device. The material belt length fixing device clamps the protective sleeve at the end away from the protective sleeve and drives the protective sleeve to be transported along the conveying direction for a certain distance. The material pulling and cutting device symmetrically cuts the folded edge of the next protective sleeve at both ends of the protective sleeve. The folded edge of this protective sleeve is located at the end of the protective sleeve that is clamped by the material belt length fixing device.

[0017] Step 2: The material strip length fixing device drives the protective sleeve to continue for a certain distance. The material strip cutting component cuts the protective sleeve at the folded edge. The translation device fixes both ends of the cut protective sleeve and transports the protective sleeve to the two protective sleeve rope threading devices at one end along the protective sleeve transmission direction. The protective sleeve rope threading device at the folded edge seals one end of the protective sleeve, and the other protective sleeve rope threading device performs the rope threading operation on the other end of the protective sleeve.

[0018] Step 3: The vacuum adsorption components of the two protective sleeve rope threading devices first fix the two ends of the protective sleeve. Then, the rope winding component of the protective sleeve rope threading component near the folded edge wraps the plastic rope around the protective sleeve. Then, the folding component folds the two ends of the protective sleeve with the folded edge cut out so that the folded side of the protective sleeve and the surface of the protective sleeve together wrap the plastic rope. Then, the heat sealing component welds the folded side of the protective sleeve to the protective sleeve. At the same time, the heat sealing component of the other protective sleeve rope threading device welds the bottom of the protective sleeve.

[0019] Step 4: The protective sleeve, after being threaded with rope, is released from its fixed position. The winding and collecting device flips over, causing the protective sleeve to fall onto the collecting line to complete the collection of the protective sleeve.

[0020] In summary, the present invention has the following beneficial effects:

[0021] 1. The protective sleeve, after being discharged from the protective sleeve, sequentially passes through a correction assembly, a material pulling and cutting device, and a material strip length fixing device. The material pulling and cutting device cuts folded edges at both ends of the protective sleeve. Then, a certain length of protective sleeve is conveyed by a translation device to two protective sleeve threading devices at one end along the protective sleeve's transport direction. These two threading devices are responsible for sealing the end of the protective sleeve without folded edges and threading the rope at the end with folded edges. During the threading operation, the vacuum adsorption assembly first opens the protective sleeve bag opening at the folded edge end, allowing the shaping plate of the folding assembly to be inserted into the protective sleeve, thus preventing curling of the bag opening and affecting the threading effect. Then, the rope winding assembly winds a plastic rope around the folded edge of the protective sleeve. Next, the third cylinder slide of the folded edge warping assembly drives the pressure plate to warp one end of the pressure rod, and the positioning block on the pressure plate positions the plastic rope. At the bottom of the folded edge, the bidirectional synchronous folding cylinder of the folding edge assembly drives the folding plate to open, thus opening the folded edge. At the same time, the warping cylinder drives the warping pressure rod to press the protective sleeve, thereby pressurizing and attaching the plastic rope to the pressure plate. At this time, the plastic rope is also pressurized and attached to the protective sleeve, which drives the folded edge to open further. Since the protective sleeve at the bottom of the folded edge is pressurized on the shaping plate, and the protective sleeve at the folded edge rotates around the bottom, the folded edge can be pushed and flipped by the folding plate to cover the plastic rope, thus covering the plastic rope between the folded edge and the protective sleeve. This prevents the folded edge from being unable to be flipped and folded normally. Finally, welding is performed. The protective sleeve with the rope threaded is wound by the winding and collecting device and falls onto the collecting production line to complete the collecting process. This ensures the quality stability of the protective sleeve production, greatly improves the production efficiency, and reduces labor costs.

[0022] 2. A set of protective sleeve rope threading components is set at both ends along the transmission direction of the protective sleeve, thereby realizing intermittent rope threading, reducing the production vacuum period, and improving production efficiency;

[0023] 3. When it is necessary to adapt to the rope threading requirements of protective sleeves of different lengths, the material tape length-fixing device pulls one end of the protective sleeve to extend it to a certain length. Then, the cutting component cuts off the other end of the protective sleeve. Finally, the pre-tightening cylinder drives the pre-tightening plate to rise or fall, thereby fixing both ends of the protective sleeve. Since the distance between the pre-tightening plates at both ends of the pre-tightening seat is fixed, that is, the distance between the two ends of the protective sleeve is fixed, the excess plastic bag will hang in a non-taut state on the pre-tightening roller of the lower pre-tightening component. At this time, the pre-tightening cylinders of the upper and lower pre-tightening components drive the pre-tightening roller to rise or fall. Since the pre-tightening rollers on the upper and lower pre-tightening components are staggered, the middle part of the protective sleeve will be pressed against the pre-tightening roller and eventually bent and straightened. Therefore, when it is necessary to adapt to the rope threading requirements of protective sleeves of different lengths, there is no need to adjust the position of the protective sleeve rope threading device, which greatly reduces the complexity of the structure and the cost of the equipment. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this embodiment;

[0025] Figure 2 This is a schematic diagram of the material pulling and cutting device in this embodiment;

[0026] Figure 3 yes Figure 2 Enlarged schematic diagram of part A;

[0027] Figure 4 This is a structural cross-sectional view of the folded edge die-cutting assembly in this embodiment;

[0028] Figure 5 yes Figure 4 Enlarged diagram of part B;

[0029] Figure 6 This is a schematic diagram of the material strip length fixing device in this embodiment;

[0030] Figure 7 This is a schematic diagram of the translation device in this embodiment;

[0031] Figure 8 This is a schematic diagram of the protective sleeve rope threading device in this embodiment;

[0032] Figure 9 yes Figure 8 Enlarged schematic diagram of part C;

[0033] Figure 10 yes Figure 8 Enlarged schematic diagram of part D;

[0034] Figure 11 This is a schematic diagram of the vacuum adsorption assembly in this embodiment;

[0035] Figure 12 This is a schematic diagram of the heat-sealing edge assembly in this embodiment;

[0036] Figure 13 This is a schematic diagram of the structure of the folded edge warping component in this embodiment;

[0037] Figure 14 This is a schematic diagram of the folding component in this embodiment;

[0038] Figure 15 This is a schematic diagram of the winding and collecting device in this embodiment.

[0039] Reference numerals: 1. Base; 2. Protective sleeve feeding roller; 3. Correction assembly; 4. Material pulling and cutting device; 41. Tensioning assembly; 42. Folding edge die-cutting assembly; 421. Mounting plate; 422. Lower die base; 423. Upper die-cutting assembly; 424. Die-cutting seat; 425. Die-cutting cylinder; 426. Die-cutting plate; 427. Die-cutting groove; 428. Die-cutting block; 43. Die-cutting waste removal assembly; 431. Waste removal cylinder; 432. First synchronous clamping cylinder; 433. First clamping block; 434. Waste removal hole; 44. Pressing assembly; 441. Pressing seat; 442. Pressing cylinder; 443. Pressing block; 444. Protective sleeve support roller; 45. Cutting assembly; 451. Cutting seat; 452. Upper cutting seat; 453. Lower cutting seat; 45 4. Lower support plate; 455. Floating spring; 456. Upper support plate; 457. Cutting cylinder slide; 458. Cutting blade; 459. Limiting plate; 5. Material strip length fixing device; 51. Length fixing slide; 52. Second synchronous clamping cylinder; 53. Second clamping block; 54. Drive rack; 55. Drive motor; 56. Drive gear; 6. Protective sleeve rope threading device; 61. Vacuum adsorption assembly; 611. Quick-acting cylinder; 612. Quick-acting plate; 613. Micro-acting cylinder; 614. Vacuum adsorption plate; 62. Heat sealing assembly; 621. Sealing cylinder; 622. Sealing plate; 623. Welding joint; 63. Rope winding assembly; 631. Material strip assembly; 632. Material strip guide wheel assembly; 633. Material strip clamping assembly; 6331. Third synchronous clamping cylinder; 6332, Third clamping block; 6333, Extended clamping block; 634, Material strip cutting assembly; 635, First pull rope assembly; 6351, First cylinder slide; 6352, Fourth synchronous clamping cylinder; 6353, Fourth clamping block; 636, Second pull rope assembly; 6361, Second cylinder slide; 6362, Lifting cylinder; 6363, Connecting plate; 6364, Pull rope cylinder; 6365, Fifth synchronous clamping cylinder; 6366, Fifth clamping block; 64, Folding assembly; 641, Folding seat; 642, Sliding plate; 643, Sliding cylinder; 644, Shaping assembly; 6441, Shaping plate; 6442, Receiving groove; 645, Folding edge folding assembly; 6451, Bidirectional synchronous folding cylinder; 6452 6453. Folding plate; 646. Folding cylinder; 646. Folding edge warping assembly; 6461. Third cylinder slide; 6462. Pressure plate; 6463. Side positioning plate; 6464. Warping cylinder; 6465. Warping pressure rod; 65. Rope threading seat; 7. Material collection line; 8. Translation device; 81. Translation seat; 82. Upper translation cylinder slide; 83. Lower translation cylinder slide; 84. Upper pre-tightening assembly; 85. Lower pre-tightening assembly; 86. Pre-tightening seat; 87. Pre-tightening cylinder; 88. Pre-tightening plate; 89. Pre-tightening electric cylinder; 810. Pre-tightening mounting plate; 811. Pre-tightening roller; 9. Winding and collecting device; 91. Mounting frame; 92. Collecting frame; 93. Lifting cylinder; 94. First collecting rod; 95. Winding disc; 96. Winding motor;97. Second receiving rod. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Example 1:

[0042] refer to Figures 1 to 15 A sterile protective sleeve threading machine includes a base 1 fixed on a horizontal ground and a protective sleeve feeding roller 2 fixedly installed at one end of the base 1. The protective sleeve is neatly wound on the protective sleeve feeding roller 2. The protective sleeve has a long strip shape and a double-layer structure. A correction component 3, a material pulling and cutting device 4, and a material strip length fixing device 5 are fixedly installed on the base 1 along the conveying direction of the protective sleeve. The correction component 3 uses a photoelectric correction device to ensure the stability of the protective sleeve conveying direction. The material pulling and cutting device 4 is used to cut folded edges at both ends of the protective sleeve to reduce the complexity of the threading process. The folded edges are two small notches symmetrically cut at both ends of the protective sleeve. The protective sleeve's port section allows both sides to move freely for subsequent folding. The plastic rope is fitted to the bottom of the folded edge, and the two sides of the protective sleeve opening are folded to fit against the protective sleeve surface, thus including the plastic rope at the opening. The material tape length-fixing device 5 is used to pull out the protective sleeve of a set length and cut the folded edge. Two pairs of protective sleeve rope-threading devices 6 are symmetrically fixed at both ends of the base 1 along the protective sleeve's transport direction. The two pairs of protective sleeve rope-threading devices 6 can achieve intermittent rope threading, reducing the waiting period during threading and improving threading efficiency. The protective sleeve rope-threading device 6 includes a true [device / device] symmetrically arranged along the vertical direction. The system includes an air adsorption component 61 and a heat sealing component 62, as well as a rope winding component 63 and a folding component 64. Two protective sleeve rope threading devices 6 are symmetrically arranged at one end along the protective sleeve's transport direction to achieve edge sealing or rope threading operations at both ends of the protective sleeve. The two protective sleeve rope threading devices 6 are respectively responsible for sealing the end of the protective sleeve without a folded edge and threading the rope at the end with a folded edge. Similarly, when both ends of the protective sleeve need rope threading or edge sealing at the same time, this can be achieved by controlling the corresponding protective sleeve rope threading device, thus expanding the processing requirements of the protective sleeve. It can simultaneously achieve rope threading at one end and edge sealing at one end; rope threading at both ends or edge sealing at both ends. To meet the needs, a receiving line 7 is fixedly installed on the base 1 between the two sets of protective sleeve rope threading devices 6, arranged perpendicular to the protective sleeve transmission direction, and a translation device 8 is used to transfer the cut protective sleeve from the cutting station to the rope threading station. The cutting station is located at the material strip length fixing device 5 and between the two pairs of protective sleeve rope threading devices 6. It is used to cut a certain length of protective sleeve and cut folded edges on the protective sleeve. The rope threading station is located at both ends of the cutting station and there are two rope threading stations. A winding receiving device 9 is fixedly installed between the protective sleeve rope threading devices 6 on the same side of the rope threading station to wind and transport the rope-threaded protective sleeve to the receiving line 7.

[0043] reference Figures 1 to 5Specifically, the material pulling and cutting device 4 is equipped with a tensioning assembly 41, a folding edge die-cutting assembly 42, a die-cutting waste removal assembly 43, a pressing assembly 44, and a cutting assembly 45 along the conveying direction of the protective sleeve. The tensioning assembly 41 includes a tensioning frame fixedly installed on a horizontal ground and several tensioning rollers slidably connected to the tensioning frame. The folding edge die-cutting assembly 42 has two sets, symmetrically arranged at both ends of the protective sleeve along the conveying direction, thereby realizing the die-cutting of folding edges at both ends of the protective sleeve. The folding edge die-cutting assembly 42 includes a mounting plate 421 fixedly connected to the base 1. A lower die base 422 for supporting the protective sleeve and an upper die-cutting assembly 423 for die-cutting a folded edge on the protective sleeve are fixedly mounted on the mounting plate 421. The upper die-cutting assembly 423 includes a die-cutting seat 424 fixedly mounted on the base 1, a die-cutting cylinder 425 fixedly mounted on the die-cutting seat 424 along the vertical direction, a die-cutting plate 426 fixedly mounted on the telescopic end of the die-cutting cylinder 425, a die-cutting groove 427 formed in the die-cutting plate 426, and a die-cutting block 428 that mates with the die-cutting groove 427 fixedly mounted on the lower die base 422. When the material strip length fixing device 5... When the protective sleeve is pulled to a certain position under the hem die-cutting assembly 42, the die-cutting cylinder 425 drives the die-cutting plate 426 to descend, thereby allowing the die-cutting block 428 to enter the die-cutting groove 427 to complete the hem cutting. After the hem die-cutting is completed, the hem waste remains on the protective sleeve. The die-cutting waste removal assembly 43 needs to remove the waste from the protective sleeve to avoid affecting the subsequent rope threading operation. The die-cutting waste removal assembly 43 is also provided in two sets, symmetrically arranged at both ends of the protective sleeve along the conveying direction. The die-cutting waste removal assembly 43 includes symmetrically fixedly arranged on the mounting plate 421 along the protective sleeve. The exhaust cylinders 431 at both ends of the sheath conveying direction are equipped with a first synchronous clamping cylinder 432 for clamping the waste material at the folded edge, and a first clamping block 433 is fixedly provided at the clamping end of the first synchronous clamping cylinder 432. A waste discharge hole 434 is provided on the mounting plate 421. The first synchronous clamping cylinder 432 and the first clamping block 433 move synchronously in opposite directions to achieve clamping and opening. When the two first clamping blocks 433 clamp the waste material, the exhaust cylinder 431 retracts and the first synchronous clamping cylinder 432 opens to allow the waste material to be discharged from the waste discharge hole 434. Specifically, the pressing assembly 44 includes a pressing seat 441 fixedly mounted on the base 1 and a pressing cylinder 442 fixedly connected to the pressing seat 441 in the vertical direction. A pressing block 443 is fixedly connected to the telescopic end of the pressing cylinder 442. Meanwhile, a protective sleeve support roller 444 is fixedly provided at one end of the pressing seat 441 near the edge die-cutting assembly 42. The protective sleeve support roller 444 can support the bottom of the protective sleeve.Specifically, the cutting assembly 45 includes a cutting seat 451 fixedly connected to the base 1. An upper cutting seat 452 and a lower cutting seat 453 are slidably connected to the cutting seat 451 along the vertical direction. A first cylinder and a second cylinder are fixedly provided at the top and bottom of the cutting seat 451, respectively, for driving the upper cutting seat 452 and the lower cutting seat 453 to slide on the cutting seat 451. A lower support plate 454 is fixedly provided on the lower cutting seat 453. An upper support plate 456 is buoyantly connected to the upper cutting seat 452 based on several floating springs 455. The upper support plate 456 and the lower support plate 453 are connected to each other. The end face of plate 454 is flush with the end face of plate 454. A limiting plate 459 is fixed on the end of the upper cutting seat 452 away from the pressing assembly 44, and its end face is in contact with the end face of the upper support plate 456. When the floating spring 455 is in its initial state, the distance between the surface of the upper support plate 456 and the lower support plate 454 is less than the distance between the bottom of the limiting plate 459 and the lower support plate 454. A cutting cylinder slide 457 is fixed on the top of the cutting seat 451 and is arranged perpendicular to the conveying direction of the protective sleeve. At the same time, a cutting knife 4 is fixed on the cutting cylinder slide 457 and is flush with the end face of the limiting plate 459 away from the pressing assembly 44. 58. When cutting is performed, the lower support plate 454 and the upper support plate 456 move simultaneously. When the upper support plate 456 contacts the lower support plate 454, the floating spring 455 is compressed, and the protective sleeve is pressed and fixed between the upper support plate 456 and the lower support plate 454. Since the distance between the surface of the upper support plate 456 and the lower support plate 454 when the floating spring 455 is in its initial state is less than the distance between the bottom of the limiting plate 459 and the lower support plate 454, the limiting plate 459 has not yet contacted the protective sleeve when the floating spring 455 is just compressed. The movement stops when the bottom surface of the limiting plate 459 contacts the protective sleeve. The pressure is stopped, and then the cutting cylinder slide 457 drives the cutting knife 458 to slide, thereby cutting the protective sleeve. When the material strip length fixing device 5 needs to continue to clamp the end of the next protective sleeve, the limiting plate 459 rises first. Since the end face of the cutting knife 458 and the limiting plate 459 away from the clamping component 44 is flush, and the end face of the limiting plate 459 is in contact with the end face of the upper support plate 456 and the end face of the upper support plate 456 is flush with the end face of the lower support plate 454, the head of the cut protective sleeve always extends beyond the end face of the lower support plate 454, so that the end of the protective sleeve can be stably clamped by the material strip length fixing device 5.

[0044] refer to Figure 1 and Figure 6Specifically, the material strip length fixing device 5 includes a length fixing slide 51 slidably connected to the base 1 along the conveying direction of the protective sleeve. A second synchronous clamping cylinder 52 is symmetrically fixed at one end of the length fixing slide 51 near the material pulling and cutting device 4. A second clamping block 53 is fixed at the clamping end of the second synchronous clamping cylinder 52. A drive rack 54 is fixedly fixed at the side end of the length fixing slide 51. A length fixing drive motor 55 is fixedly connected to the base 1. A drive gear 56 that cooperates with the drive rack 54 is fixedly connected to the output shaft of the length fixing drive motor 55. When the material strip length fixing device 5 pulls the protective sleeve for transmission, since the protective sleeve needs to be cut at the folding edge die-cutting component 42, and there is a certain distance between the folding edge die-cutting component 42 and the cutting blade 458, the movement process of the material strip length fixing device 5 is divided into two parts. First, it moves a certain distance so that the material pulling and cutting device 4 symmetrically cuts the folding edge of the next protective sleeve at both ends. Then it continues to move until the protective sleeve is cut.

[0045] refer to Figure 1 and Figure 7Specifically, the translation device 8 includes a translation seat 81 fixedly connected to the base 1 along a direction perpendicular to the transmission direction of the protective sleeve. An upper translation cylinder slide 82 and a lower translation cylinder slide 83 are respectively fixedly mounted on the translation seat 81 along a vertical direction. An upper pre-tightening assembly 84 and a lower pre-tightening assembly 85 are symmetrically arranged and slidably connected to the upper translation cylinder slide 82 and the lower translation cylinder slide 83, respectively. The upper pre-tightening assembly 84 and the lower pre-tightening assembly 85 have the same structure, each including a pre-tightening seat 86 slidably connected to the translation seat 81. Pre-tightening cylinders 87 and 88 are respectively fixed at both ends of the pre-tightening seat 86 along a direction parallel to the transmission direction of the protective sleeve. A pre-tensioning plate 88 is fixedly connected to the telescopic end of the pre-tensioning cylinder 87. Pre-tensioning electric cylinders 89 are symmetrically fixed at both ends of the pre-tensioning seat 86 along the vertical direction. A pre-tensioning mounting plate 810 is fixedly connected to the telescopic end of the pre-tensioning electric cylinder 89. Several pre-tensioning rollers 811 are evenly arranged parallel to each other on the pre-tensioning mounting plate 810 along a direction parallel to the transmission direction of the protective sleeve. The pre-tensioning rollers 811 on the upper pre-tensioning component 84 and the lower pre-tensioning component 85 are staggered. When the protective sleeve is cut, the pre-tensioning cylinders 87 on the upper pre-tensioning component 84 and the lower pre-tensioning component 85 drive the pre-tensioning plate 88 to rise or fall, thereby realizing the removal of the cut protective sleeve. The protective sleeve is fixed by pressing it between the pre-tightening plates 88. The upper pre-tightening component 84 and the lower pre-tightening component 85 are used to cut protective sleeves of different lengths. When the material belt length-fixing device 5 pulls one end of the protective sleeve, it pulls the protective sleeve out to a certain length. Then, the cutting component 45 cuts off the other end of the protective sleeve. Finally, the pre-tightening cylinder 87 drives the pre-tightening plate 88 to rise or fall, thereby fixing the two ends of the protective sleeve. Since the distance between the pre-tightening plates 88 at both ends of the pre-tightening seat 86 is fixed, that is, the distance between the two ends of the protective sleeve is fixed, the pre-tightening electric cylinder 89 of the upper pre-tightening component 84 and the lower pre-tightening component 85 drives the pre-tightening plate 88 to rise or fall, thereby fixing the two ends of the protective sleeve. As the tension roller 811 rises or falls, the excess plastic bag hangs in a slightly taut state on the tension roller 811 of the lower tension assembly 85. As the tension cylinder 89 continues to drive the tension roller 811 to rise or fall, the tension rollers 811 on the upper tension assembly 84 and the lower tension assembly 85 are staggered, so that the middle part of the protective sleeve is pressed against the tension roller 811 and eventually bent and straightened. This is suitable for the rope threading requirements of protective sleeves of different lengths. There is no need to adjust the position of the rope threading device 6, which greatly reduces the complexity of the structure and the cost of the equipment.

[0046] refer to Figures 8 to 14Specifically, the protective sleeve rope threading device 6 also includes a rope threading seat 65 fixedly connected to the base 1, and a vacuum adsorption assembly 61 including a quick-acting cylinder 611 fixedly connected to the rope threading seat 65 in the vertical direction and a quick-acting plate 612 fixedly connected to the quick-acting cylinder 611. A micro-acting cylinder 613 is fixedly installed on the quick-acting plate 612, and a vacuum adsorption plate 614 is fixedly installed at the telescopic end of the micro-acting cylinder 613. When the translation device 8 moves the protective sleeve to the rope threading position, the quick-acting cylinder 611 of the vacuum adsorption assembly 61 near the folded edge moves and drives... The quick-acting plate 612 moves to press and fix the protective sleeve using the vacuum adsorption plate 614. Then, the micro-acting cylinder 613 moves to separate the two vacuum adsorption plates 614, thereby opening the folded edge of the protective sleeve. The micro-acting cylinder 613 at the end away from the folded edge does not move, and the protective sleeve is fixed directly by using the vacuum adsorption plate 614. The heat sealing assembly 62 includes a sealing cylinder 621 fixedly connected to the rope seat 65 and a sealing plate 622 fixedly connected to the telescopic end of the sealing cylinder 621. A welding joint 623 is fixedly provided on the sealing plate 622.

[0047] refer to Figure 13The rope winding assembly 63 includes a material belt assembly 631 fixedly mounted on the rope threading seat 65. Along the transmission direction of the plastic rope, there are a material belt guide wheel assembly 632, a material belt clamping assembly 633, a material belt cutting assembly 634, a first rope pulling assembly 635, and a second rope pulling assembly 636. The material belt assembly 631 includes a guide wheel seat fixedly mounted on the rope threading seat 65 and a material belt guide roller rotatably connected to the guide wheel seat. The plastic rope is wound around the material belt guide roller. The material belt guide wheel assembly 632 includes several material belt guide wheels rotatably connected to the guide wheel seat to ensure the stability of the plastic rope during the conveying process, thereby preventing the plastic rope from folding during transmission and affecting subsequent rope winding operations. The material belt clamping assembly... Component 633 includes a third synchronous clamping cylinder 6331 fixedly connected to the rope threading seat 65 and a third clamping block 6332 fixedly connected to the clamping end of the third synchronous clamping cylinder 6331. An extended clamping block 6333 is fixedly provided at the end of the third clamping block 6332 away from the material belt guide wheel assembly 632 to facilitate clamping by the first rope pulling assembly 635. The end of the plastic rope is clamped and fixed between the extended clamping blocks 6333, thereby ensuring that the first rope pulling assembly 635 can smoothly clamp the head of the plastic rope. The material belt cutting assembly 634 includes a cutting cylinder and a cutting blade fixedly connected to the cutting cylinder to cut the plastic rope. The cutting blade is a distance away from the extended clamping block 6333. Specifically, the first pull rope assembly 635 includes a first cylinder slide 6351 fixedly disposed on the upper surface of the protective sleeve along a direction perpendicular to the conveying direction of the protective sleeve, and a fourth synchronous clamping cylinder 6352 fixedly connected to the sliding end of the first cylinder slide 6351. A fourth clamping block 6353 is fixedly disposed at the clamping end of the fourth synchronous clamping cylinder 6352. The first pull rope assembly 635 is used to wrap the plastic rope around the top of the protective sleeve. The second pull rope assembly 636 includes a second cylinder slide 6361 fixedly disposed below the lower surface of the protective sleeve along a direction perpendicular to the conveying direction of the protective sleeve, and a lifting cylinder 6362 fixedly connected to the sliding end of the second cylinder slide 6361 in a vertical direction. A connecting rod is fixedly connected to the telescopic end of the lifting cylinder 6362. A horizontally oriented rope-pulling cylinder 6364 is fixedly mounted on a connecting plate 6363. A fifth synchronous clamping cylinder 6365 is fixedly mounted on the telescopic end of the rope-pulling cylinder 6364. A fifth clamping block 6366 is fixedly mounted on the clamping end of the fifth synchronous clamping cylinder 6365. When the first cylinder slide 6351 pulls the plastic rope to one end of the protective sleeve, the lifting cylinder 6362 drives the connecting plate 6363 to rise. The extension cylinder body length drives the fifth synchronous clamping cylinder 6365 to move, thereby pressing and fixing the end of the plastic rope between the fifth clamping blocks 6366. Subsequently, the lifting cylinder 6362 descends, and the second cylinder slide 6361 moves to move the end of the plastic rope to the other end of the protective sleeve, thereby realizing the winding of the plastic rope onto the protective sleeve. In this embodiment, the cutting blade of the strip cutting assembly 634 uses a hot cutting blade to ensure a smooth cut.

[0048] refer to Figures 8 to 14 Specifically, the folding assembly 64 includes a folding seat 641 fixedly connected to the rope threading seat 65, a sliding plate 642 slidably connected to the folding seat 641 along the transmission direction parallel to the protective sleeve, and a sliding cylinder 643 fixedly provided for driving the sliding plate 642 to slide on the folding seat 641. A shaping assembly 644 for inserting into the protective sleeve and a folding edge folding assembly 645 are fixedly provided on the sliding plate 642. A folding edge warping assembly 646 is fixedly provided on the rope threading seat 65 along the direction perpendicular to the transmission direction of the protective sleeve, for pressing and adhering the plastic rope directly above the protective sleeve to the bottom of the folding edge of the protective sleeve, thereby causing the folding edge of the protective sleeve to warp and making it easier for the folding edge folding assembly 645 to fold.

[0049] refer to Figure 14Specifically, the shaping assembly 644 includes a shaping plate 6441 fixedly connected to the sliding plate 642 along a transmission direction parallel to the protective sleeve, for inserting into the protective sleeve. The end of the shaping plate 6441 away from the sliding plate 642 has a flat structure to facilitate insertion into the protective sleeve. The folding assembly 645 includes a bidirectional synchronous folding cylinder 6451 fixedly connected to the sliding plate 642 and a folding plate 6452 fixedly connected to the sliding end of the bidirectional synchronous folding cylinder 6451. The folding plate 6452 and the shaping plate 6441 are inserted into the protective sleeve synchronously, but the width of the folding plate 6452 is much smaller than the length of the shaping plate 6441. The length of the folding plate 6452 extending into the protective sleeve is equal to the width of the folding opening. An opening is formed on the shaping plate 6441. The system includes a receiving groove 6442 for accommodating the folding plate 6452, ensuring that the surface of the folding plate 6452 is flush with the surface of the shaping plate 6441. A folding cylinder 6453 is fixedly mounted on the sliding plate 642 to push the bidirectional synchronous folding cylinder 6451 towards the protective sleeve when the protective sleeve is flared, thereby folding the folded edge of the protective sleeve. The folded edge warping assembly 646 includes a third cylinder slide 6461 fixedly mounted on the rope threading seat 65 along a direction perpendicular to the protective sleeve's conveying direction. A pressure plate 6462 is slidably connected to the third cylinder slide 6461. A side positioning plate 6463 is fixedly mounted on the pressure plate 6462 to position the two ends of the plastic rope, preventing the plastic rope from deviating. A side positioning plate 6463 is fixedly mounted on the rope threading seat 65 along a direction perpendicular to the protective sleeve's conveying direction. A vertically positioned warping cylinder 6464 has a warping lever 6465 fixed at its telescopic end. This lever presses the plastic rope against the pressure plate 6462, thereby causing the plastic rope to press against the folded edge of the protective sleeve, thus warping the folded edge. During the rope threading operation, the vacuum adsorption assembly 61 first opens the protective sleeve bag opening at the folded edge, allowing the shaping plate 6441 of the folding assembly 64 to be inserted into the protective sleeve, thus preventing the protective sleeve bag opening from curling and affecting the rope threading effect. Then, the rope winding assembly 63 winds a plastic rope around the folded edge of the protective sleeve. Subsequently, the third cylinder slide 6461 of the folded edge warping assembly 646 drives the pressure plate 6462 to warp one end of the lever 6465. The positioning mechanism on the pressure plate 6462... The block positions the plastic rope at the bottom of the folded edge. Then, the bidirectional synchronous folding cylinder 6451 of the folding edge assembly 645 drives the folding plate 6452 to open, thereby opening the folded edge. At the same time, the warping cylinder 6464 drives the warping pressure rod 6465 to press the protective sleeve, thereby pressing the plastic rope onto the pressure plate 6462. At this time, the plastic rope is also pressed onto the protective sleeve, thereby driving the folded edge to open further. Since the protective sleeve at the bottom of the folded edge is pressed onto the shaping plate 6441, and the protective sleeve at the folded edge rotates around the bottom, the folded edge can be pushed and flipped by the folding plate 6452 to cover the plastic rope, thus wrapping the plastic rope between the folded edge and the protective sleeve, preventing the folded edge from being unable to be flipped and folded normally.

[0050] refer to Figure 1 and Figure 15 Specifically, the winding and receiving device 9 includes a mounting frame 91 fixedly connected to the base 1 and a receiving frame 92 slidably connected to the mounting frame 91 in the vertical direction. A lifting cylinder 93 is fixedly mounted on the mounting frame 91 to drive the receiving frame 92 to slide in the vertical direction. Several first receiving rods 94, arranged in the horizontal direction and used to support the bottom surface of the protective sleeve, are symmetrically fixed at both ends of the receiving frame 92. A winding disc 95 and a winding motor 96 for driving the winding disc 95 to rotate are rotatably connected to the middle position of the receiving frame 92. A set of second receiving rods 97 are symmetrically fixed on the winding motor 96. The distance between the second receiving rods 97 and the base 1 is lower than the distance between the first receiving rods 94. The distance from base 1, after the protective sleeve is threaded with rope, the two ends of the protective sleeve are loosened. The two ends of the protective sleeve are supported by the first take-up rod 94, and the middle position of the protective sleeve is supported by the second take-up rod 97. At this time, the winding motor 96 drives the winding disc 95 to rotate at a certain speed. Due to gravity, the protective sleeve will hang between the adjacent take-up rods. When the winding disc 95 rotates at a certain speed, part of the protective sleeve will be wound on the first take-up rod 94. However, because the rotation speed of the winding disc 95 is low, it is not enough for the protective sleeve to be wound onto the two second take-up rods 97. When the plane where the two second take-up rods 97 are located is in the vertical direction, the slightly rolled protective sleeve will fall onto the take-up production line 7 to complete the take-up.

[0051] Example 2:

[0052] An automatic threading method for sterile protective sleeves, using a sterile protective sleeve threading machine as shown in Example 1, includes:

[0053] Step 1: The protective sleeve is output from the protective sleeve feeding roller 2 and passes through the correction component 3 into the material pulling and cutting device 4. The material belt length fixing device 5 clamps the protective sleeve at the end away from the protective sleeve and drives the protective sleeve to be transported along the conveying direction for a certain distance. The material pulling and cutting device 4 symmetrically cuts the folded edge of the next protective sleeve at both ends of the protective sleeve. The folded edge of this protective sleeve is located at the end of the protective sleeve that is clamped by the material belt length fixing device 5.

[0054] Step 2: The material strip length fixing device 5 drives the protective sleeve to continue for a certain distance. The material strip cutting component 45 cuts the protective sleeve at the folded edge. The translation device 8 fixes both ends of the cut protective sleeve and transports the protective sleeve to two protective sleeve rope threading devices 6 at one end along the protective sleeve transmission direction. The protective sleeve rope threading device 6 at the folded edge seals one end of the protective sleeve, and the other protective sleeve rope threading device 6 performs rope threading operation on the other end of the protective sleeve.

[0055] Step 3: The vacuum adsorption components 61 of the two protective sleeve rope threading devices 6 first fix the two ends of the protective sleeve. Then, the rope winding component 63 of the protective sleeve rope threading component near the folded edge wraps the plastic rope around the protective sleeve. Then, the folding component 64 folds the two ends of the protective sleeve with the folded edge cut out in advance so that the folded side of the protective sleeve and the surface of the protective sleeve together wrap the plastic rope. Then, the heat sealing component 62 welds the folded side of the protective sleeve to the protective sleeve. At the same time, the heat sealing component 62 of the other protective sleeve rope threading device 6 welds the bottom of the protective sleeve.

[0056] Step 4: The protective sleeve, after being threaded with rope, is released from its fixed position. The winding and collecting device 9 flips over, causing the protective sleeve to fall onto the collecting line 7, thus completing the collection of the protective sleeve.

[0057] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A sterile sheath threading machine, comprising a base (1) and a sheath feed roller (2) fixedly arranged at one end of the base (1); characterized in that, The base (1) is fixedly provided with a correction component (3), a material pulling and cutting device (4), and a material strip length fixing device (5) along the transmission direction of the protective sleeve. Two pairs of protective sleeve rope threading devices (6) are symmetrically fixed at both ends of the base (1) along the transmission direction of the protective sleeve. Each protective sleeve rope threading device (6) includes a vacuum adsorption component (61) and a heat sealing component (62) symmetrically arranged in the vertical direction, and also includes a rope winding component (63) and a folding component (64). Two of the rope threading devices at one end along the transmission direction of the protective sleeve... The protective sleeve rope threading device (6) is symmetrically arranged to realize the sealing or rope threading operation at both ends of the protective sleeve. The base (1) is fixedly provided with a receiving flow line (7) arranged along the perpendicular direction of the protective sleeve transmission between the two sets of the protective sleeve rope threading device (6) and a translation device (8) for transferring the cut protective sleeve from the cutting station to the rope threading station. A winding receiving device (9) is fixedly provided between the protective sleeve rope threading devices (6) on the same side of the rope threading station to wind and transport the rope-threaded protective sleeve to the receiving flow line (7). The protective sleeve rope threading device (6) further includes a rope threading seat (65) fixedly connected to the base (1). The vacuum adsorption assembly (61) includes a quick-acting cylinder (611) fixedly connected to the rope threading seat (65) in the vertical direction and a quick-acting plate (612) fixedly connected to the quick-acting cylinder (611). A micro-acting cylinder (613) is fixedly provided on the quick-acting plate (612). A vacuum adsorption plate (614) is fixedly provided at the telescopic end of the micro-acting cylinder (613). The heat sealing assembly (62) includes a sealing cylinder (621) fixedly connected to the rope threading seat (65) and a sealing plate (622) fixedly connected to the telescopic end of the sealing cylinder (621). A welding joint (623) is fixedly provided on the sealing plate (622). The folding assembly (64) includes a folding seat (641) fixedly connected to the rope threading seat (65). A sliding plate (642) is slidably connected to the folding seat (641) along the transmission direction parallel to the protective sleeve, and a sliding cylinder (643) is fixedly provided for driving the sliding plate (642) to slide on the folding seat (641). A shaping assembly (644) for inserting into the protective sleeve and a folding edge folding assembly (645) are fixedly provided on the sliding plate (642). A folding edge warping assembly (646) is fixedly provided on the rope threading seat (65) along the direction perpendicular to the transmission of the protective sleeve for pressing and attaching the plastic rope directly above the protective sleeve to the bottom of the folding edge of the protective sleeve, thereby causing the folding edge of the protective sleeve to warp and making it easier for the folding edge folding assembly (645) to fold.

2. The sterile protective sleeve threading machine according to claim 1, characterized in that, The material pulling and cutting device (4) is provided with a tensioning assembly (41), a folding edge die-cutting assembly (42), a die-cutting waste removal assembly (43), a pressing assembly (44), and a cutting assembly (45) along the transmission direction of the protective sleeve. The folding edge die-cutting assembly (42) includes a mounting plate (421) fixedly connected to the base (1). The mounting plate (421) is fixedly provided with a lower die base (422) for supporting the protective sleeve and an upper die-cutting assembly (423) fixedly connected to the base (1) for die-cutting the folding edge on the protective sleeve. The upper die-cutting assembly (423) includes a die-cutting seat (424) fixedly connected to the base (1). The die-cutting seat (424) is fixedly provided with a die-cutting die along the vertical direction. The cylinder (425) has a die-cutting plate (426) fixedly mounted on its telescopic end. A die-cutting groove (427) is provided in the die-cutting plate (426). A die-cutting block (428) that mates with the die-cutting groove (427) is fixedly mounted on the lower die base (422). The die-cutting waste removal assembly (43) includes waste removal cylinders (431) symmetrically fixedly mounted on both ends of the mounting plate (421) along the conveying direction of the protective sleeve. A first synchronous clamping cylinder (432) for clamping the waste material at the folded edge is fixedly mounted on the telescopic end of the waste removal cylinder (431). A first clamping block (433) is fixedly mounted on the clamping end of the first synchronous clamping cylinder (432). A waste removal hole (434) is provided on the mounting plate (421). The clamping assembly (44) includes a clamping seat (441) fixedly mounted on the base (1) and a clamping cylinder (442) fixedly connected to the clamping seat (441) in the vertical direction. A clamping block (443) is fixedly connected to the telescopic end of the clamping cylinder (442). A protective sleeve support roller (444) is fixedly provided at one end of the clamping seat (441) near the edge die-cutting assembly (42). The cutting assembly (45) includes a cutting seat (451) fixedly connected to the base (1). An upper cutting seat (452) and a lower cutting seat (453) are slidably connected to the cutting seat (451) in the vertical direction. A lower support plate (453) is fixedly provided on the lower cutting seat (453). 4) An upper support plate (456) is floatingly connected to the upper cutting seat (452) based on several floating springs (455). A limiting plate (459) is fixedly provided on the upper cutting seat (452). When the floating springs (455) are in the initial state, the distance between the surface of the upper support plate (456) and the lower support plate (454) is less than the distance between the bottom of the limiting plate (459) and the lower support plate (454). A cutting cylinder slide (457) is fixedly provided on the top of the cutting seat (451) along the direction perpendicular to the protective sleeve conveying direction. A cutting blade (458) is fixedly provided on the cutting cylinder slide (457) with its end face flush with the end face of the limiting plate (459) away from the pressing assembly (44).

3. The sterile protective sleeve threading machine according to claim 1, characterized in that, The material strip length fixing device (5) includes a length fixing slide (51) slidably connected to the base (1) along the conveying direction of the protective sleeve. A second synchronous clamping cylinder (52) is symmetrically fixed at one end of the length fixing slide (51) near the material pulling and cutting device (4). A second clamping block (53) is fixed at the clamping end of the second synchronous clamping cylinder (52). A drive rack (54) is fixed at the side end of the length fixing slide (51). A length fixing drive motor (55) is fixedly connected to the base (1). A drive gear (56) that cooperates with the drive rack (54) is fixedly connected to the output shaft of the length fixing drive motor (55).

4. The sterile protective sleeve threading machine according to claim 1, characterized in that, The translation device (8) includes a translation seat (81) fixedly connected to the base (1) along the direction perpendicular to the transmission direction of the protective sleeve. An upper translation cylinder slide (82) and a lower translation cylinder slide (83) are fixedly mounted on the translation seat (81) along the vertical direction. An upper pre-tightening assembly (84) and a lower pre-tightening assembly (85) are symmetrically connected to the upper translation cylinder slide (82) and the lower translation cylinder slide (83), respectively. The upper pre-tightening assembly (84) and the lower pre-tightening assembly (85) have the same structure, both including a pre-tightening seat (86) slidably connected to the translation seat (81). (86) A pre-tightening cylinder (87) and a pre-tightening plate (88) fixedly connected to the telescopic end of the pre-tightening cylinder (87) are respectively fixed at both ends parallel to the transmission direction of the protective sleeve. A pre-tightening electric cylinder (89) is fixedly installed on the pre-tightening seat (86) in the vertical direction. A pre-tightening mounting plate (810) is fixedly connected to the telescopic end of the pre-tightening electric cylinder (89). A plurality of pre-tightening rollers (811) are evenly arranged in parallel on the pre-tightening mounting plate (810) in the direction parallel to the transmission direction of the protective sleeve. The pre-tightening rollers (811) on the upper pre-tightening assembly (84) and the pre-tightening rollers (811) on the lower pre-tightening assembly (85) are staggered.

5. The sterile protective sleeve threading machine according to claim 1, characterized in that, The rope winding assembly (63) includes a material strip assembly (631) fixedly mounted on the rope threading seat (65). Along the transmission direction of the plastic rope, a material strip guide wheel assembly (632), a material strip clamping assembly (633), a material strip cutting assembly (634), a first rope pulling assembly (635), and a second rope pulling assembly (636) are respectively provided. The material strip clamping assembly (633) includes a third synchronous clamping cylinder (6331) fixedly connected to the rope threading seat (65) and a third clamping block (6332) fixedly connected to the clamping end of the third synchronous clamping cylinder (6331). An extended clamping block (6333) is fixedly provided at one end of the third clamping block (6332) away from the material strip guide wheel assembly (632) to facilitate clamping by the first rope pulling assembly (635). The first rope pulling assembly (635) includes a first cylinder slide fixedly mounted on the upper surface of the protective sleeve along a direction perpendicular to the conveying direction of the protective sleeve. The second pull rope assembly (636) includes a second cylinder slide (6351) fixedly connected to the sliding end of the first cylinder slide (6351) and a fourth synchronous clamping cylinder (6352), wherein the clamping end of the fourth synchronous clamping cylinder (6352) is fixedly provided with a fourth clamping block (6353), and the second pull rope assembly (636) includes a second cylinder slide (6361) fixedly disposed below the lower surface of the protective sleeve along the direction perpendicular to the conveying direction of the protective sleeve, and a fourth clamping block (6353) fixedly connected to the second cylinder slide (6351) along the vertical direction. 6361) A lifting cylinder (6362) at the sliding end, wherein a connecting plate (6363) is fixedly connected to the telescopic end of the lifting cylinder (6362), and a rope-pulling cylinder (6364) arranged in a horizontal direction is fixedly provided on the connecting plate (6363). A fifth synchronous clamping cylinder (6365) is fixedly provided at the telescopic end of the rope-pulling cylinder (6364), and a fifth clamping block (6366) is fixedly provided at the clamping end of the fifth synchronous clamping cylinder (6365).

6. The sterile protective sleeve threading machine according to claim 1, characterized in that, The shaping assembly (644) includes a shaping plate (6441) fixedly connected to the sliding plate (642) along a transmission direction parallel to the protective sleeve, for inserting into the protective sleeve. The end of the shaping plate (6441) away from the sliding plate (642) is flat to facilitate insertion into the protective sleeve. The folding edge assembly (645) includes a bidirectional synchronous folding cylinder (6451) fixedly connected to the sliding plate (642) and a folding plate (6452) fixedly connected to the sliding end of the bidirectional synchronous folding cylinder (6451). The shaping plate (6441) has a receiving groove (6442) for accommodating the folding plate (6452) so that the surface of the folding plate (6452) is flush with the surface of the shaping plate (6441). The sliding plate (642) is fixedly provided with a folding groove (6442) for pushing the bidirectional synchronous folding cylinder (6451) in the flared state of the protective sleeve. The folding cylinder (6451) moves towards the protective sleeve, thereby folding the edge of the protective sleeve. The edge warping assembly (646) includes a third cylinder slide (6461) fixedly mounted on the rope threading seat (65) along the direction perpendicular to the conveying direction of the protective sleeve. A pressure plate (6462) is slidably connected to the third cylinder slide (6461). A side positioning plate (6463) is fixedly mounted on the pressure plate (6462) to position the two ends of the plastic rope and prevent the plastic rope from deviating. A warping cylinder (6464) is fixedly mounted on the rope threading seat (65) along the vertical direction. A warping pressure rod (6465) is fixedly mounted on the telescopic end of the warping cylinder (6464) to press the plastic rope against the pressure plate (6462), thereby driving the plastic rope to press the edge of the protective sleeve and thus achieving edge warping.

7. The sterile protective sleeve threading machine according to claim 1, characterized in that, The winding and collecting device (9) includes a mounting frame (91) fixedly connected to the base (1) and a collecting frame (92) slidably connected to the mounting frame (91) in the vertical direction. The mounting frame (91) is fixedly provided with a lifting cylinder (93) for driving the collecting frame (92) to slide in the vertical direction. The collecting frame (92) is symmetrically provided with several first collecting rods (94) arranged in the horizontal direction to support the bottom surface of the protective sleeve at both ends. The collecting frame (92) is rotatably connected with a winding disc (95) and a winding motor (96) for driving the winding disc (95) to rotate at the middle position. The winding motor (96) is symmetrically provided with a set of second collecting rods (97). The distance between the second collecting rods (97) and the base (1) is lower than the distance between the first collecting rods (94) and the base (1).

8. An automatic threading method for sterile protective sleeves, using a sterile protective sleeve threading machine as described in any one of claims 1-7; characterized in that, include: Step 1: The protective sleeve is output from the protective sleeve feeding roller (2) and passes through the correction component (3) into the material pulling and cutting device (4). The material belt length fixing device (5) clamps the protective sleeve at the end away from the protective sleeve and drives the protective sleeve to be transported along the conveying direction for a distance. The material pulling and cutting device (4) symmetrically cuts the folded edge of the next protective sleeve at both ends of the protective sleeve. The folded edge of this protective sleeve is located at the end of the protective sleeve that is clamped by the material belt length fixing device (5). Step 2: The material strip length fixing device (5) drives the protective sleeve to continue a certain distance, the material strip cutting component (45) cuts the protective sleeve at the folded edge, the translation device (8) fixes the two ends of the cut protective sleeve and transports the protective sleeve to the two protective sleeve rope threading devices (6) at one end along the protective sleeve transmission direction. The protective sleeve rope threading device (6) at the folded edge seals one end of the protective sleeve, and the other protective sleeve rope threading device (6) performs rope threading operation on the other end of the protective sleeve. Step 3: The vacuum adsorption assembly (61) of the two protective sleeve rope threading devices (6) first fixes the two ends of the protective sleeve. Then, the rope winding assembly (63) of the protective sleeve rope threading assembly near the folded edge wraps the plastic rope around the protective sleeve. Then, the folding assembly (64) folds the two ends of the protective sleeve with the folded edge cut out in advance so that the folded side of the protective sleeve and the surface of the protective sleeve together wrap the plastic rope. Then, the heat sealing assembly (62) welds the folded side of the protective sleeve to the protective sleeve. At the same time, the heat sealing assembly (62) of the other protective sleeve rope threading device (6) welds the bottom of the protective sleeve. Step 4: The protective sleeve, after being threaded with rope, is released from its fixed position. The winding and collecting device (9) flips over, causing the protective sleeve to fall onto the collecting line (7) to complete the collection of the protective sleeve.

Images