A coating process and device for producing chitosan dressing

Abstract

The present invention discloses a coating process and device for the production of chitosan dressings, which relates to the technical field of coating devices, including: a production body; a conveying device arranged inside the production body, the conveying device being provided with a lifting mechanism, a conveying mechanism and a lifting and moving mechanism in sequence; a feeding device, located above the lifting and moving mechanism; a moving device, fixed on the production body, adjacent to the feeding device; a ring cutting and hot pressing device, fixed on the production body, located on the side of the moving device away from the feeding device; a retracting device, fixed on the production body, located above the lifting and moving mechanism; a collecting box, fixed on the top of the production body at one end opposite to the feeding device; a bearing template, movably arranged on the conveying device; and a coating device, fixed on the production body. The present invention can coat chitosan dressings on one side or both sides, meet more production needs, effectively improve the accuracy and integrity of the coating, and reduce the risk of manual intervention and contamination.

Description

Technical Field

[0001] The invention relates to the technical field of film coating devices, and more specifically to a film coating process and device for producing chitosan dressings. Background Art

[0002] Chitosan is a product of the natural polysaccharide chitin with some acetyl groups removed. It has multiple physiological functions such as biodegradability, biocompatibility, and non-toxicity. After production, it needs to be coated and packaged to cooperate with the later synthetic production. The traditional chitosan dressing coating process mainly relies on manual operation, including opening the roll film, using a cutter to cut the roll film multiple times, and then covering the roll film on the chitosan. This process has problems such as low operating efficiency, easy contamination, and inaccurate cutting. Chitosan dressings need to be operated with gloves throughout the process to avoid contamination, but wearing gloves will affect operating efficiency. At the same time, the friction of the fabric will generate more static electricity, making the roll film cutting more difficult. After cutting the roll film, hot pressing is required to completely fit the roll film on the chitosan dressing, but generally cutting and hot pressing are divided into two steps. If the cut roll film is not handled properly during the transportation process, it is easy to produce wrinkles, which affects the coating quality of the chitosan dressing and it is difficult to ensure the accuracy and integrity of the coating. Generally, when coating chitosan dressings, the equipment usually adopts a single-sided coating method. For chitosan dressings that require double-sided coating, it is difficult to switch in time. Therefore, it is necessary to provide a coating process and device for chitosan dressing production to solve the problems raised in the above background technology. Summary of the invention

[0003] To achieve the above object, the present invention provides the following technical solution: a film coating device for producing chitosan dressings, comprising:

[0004] A production machine body, wherein a conveying device is arranged inside the production machine body, wherein the conveying device is provided with a lifting mechanism, a conveying mechanism and a lifting and moving mechanism in sequence, wherein the output end of the conveying mechanism is connected to the lifting and moving mechanism, and the output end of the lifting mechanism is connected to the conveying mechanism;

[0005] The unloading device is fixed at one end of the top of the production machine body and is located above the lifting and moving mechanism;

[0006] The conveying device is arranged inside the production machine body, and is provided with a lifting mechanism, a conveying mechanism and a lifting and moving mechanism from right to left;

[0007] A moving device, fixed on the production machine body, and the moving device is adjacent to the unloading device;

[0008] The ring cutting and hot pressing device is fixed on the production machine body and is located on the side of the moving device away from the unloading device;

[0009] The retracting device is fixed on the production machine body and is located above the lifting mechanism;

[0010] The collecting box is fixed on the top of the production machine body at the end opposite to the unloading device;

[0011] A bearing template is movably arranged on the conveying device, the bearing template is provided with a plurality of receiving platforms for carrying chitosan dressings, a movable round table that can slide up and down is provided at the center of the receiving platform, and a bayonet corresponding to the movable device is provided at the bottom of the bearing template;

[0012] A coating device, fixed on the production machine body, used for coating the chitosan dressing in the material receiving platform;

[0013] The ring cutting hot pressing device comprises:

[0014] A displacement mechanism, fixed to the production machine body;

[0015] A connecting horizontal plate is fixed below the displacement mechanism;

[0016] Adjustment components, a plurality of which are arranged in a straight line and fixedly connected to the connecting horizontal plate;

[0017] There are multiple positioning shafts, each corresponding to a plurality of adjustment components, and the positioning shafts are fixed to the side of the adjustment component;

[0018] A hot pressing assembly is fixed below the adjusting assembly, and the hot pressing assembly is composed of a hot pressing panel and an upper connecting member;

[0019] The ring cutting assembly is coaxially arranged with the hot pressing assembly and is located below the hot pressing assembly;

[0020] There are multiple limit regulating components, which correspond to multiple positioning shafts respectively, and the limit regulating components are fixed on the side of the positioning shaft away from the adjustment component. The limit regulating components are slidably connected to the positioning shaft, and the limit regulating components are fixedly connected to the hot pressing component and the ring cutting component respectively.

[0021] Further, as a preference, the feeding device comprises:

[0022] A support frame is fixed on the production machine body and is located above the lifting and moving mechanism;

[0023] A material storage cavity is fixed on the top of the support frame;

[0024] Dispersed feeding chamber, fixed at the bottom of the storage chamber;

[0025] A plurality of feeders are linearly arranged and rotatably arranged in a dispersed feeder cavity;

[0026] A plurality of fixed-point feeding mechanisms are linearly distributed and arranged corresponding to the feeders and fixed at the bottom of the dispersed feed chamber.

[0027] Further, as a preference, the coating device comprises:

[0028] The lower roll film conveying mechanism is fixed on the side of the production machine body at one end close to the unloading device;

[0029] An upper film roll conveying mechanism is fixed on the support frame at one end away from the lower film roll conveying mechanism;

[0030] There are two leveling cross bars, symmetrically distributed and fixed at both ends of the production machine body;

[0031] There are two positioning rollers in a straight line, both fixed on the production machine body, one of which is close to the unloading device and the other is close to the collection box;

[0032] The lower film roll recovery mechanism is fixed on the end of the production machine body close to the collection box;

[0033] The upper film roll recovery mechanism is arranged adjacent to the lower film roll recovery mechanism and is located obliquely above the positioning roller close to the collection box.

[0034] Further, preferably, the mobile device comprises:

[0035] Mobile hydraulic axis, fixed on the production machine body;

[0036] A shaft body is slidably arranged in the movable hydraulic shaft, and the shaft body slides in the direction where the unloading device is located;

[0037] A connecting panel is fixed to the end of the shaft body away from the moving hydraulic shaft;

[0038] The elastic card block is arranged on the top of the connection panel, and the elastic card block corresponds to the bottom card opening of the bearing template.

[0039] Further, as a preference, the adjustment component comprises:

[0040] A fixed frame is fixedly connected to the connecting horizontal plate;

[0041] The transmission worm is rotatably arranged in a fixed frame and controlled by an external drive motor;

[0042] A first transmission gear is rotatably disposed in the fixed frame and meshes with the transmission worm;

[0043] A second transmission gear is coaxially arranged with the first transmission gear and rotatably arranged in the fixed frame;

[0044] The rack is vertically arranged, the side is slidably connected to the fixed frame, the bottom is fixedly connected to the hot pressing panel, and the rack is meshed with the second transmission gear.

[0045] Further, as a preference, the circumcision assembly comprises:

[0046] A fixing ring is coaxially arranged with the hot pressing panel, and the inner ring of the fixing ring is slidably connected with the outer ring of the hot pressing panel;

[0047] A ring cutter, rotatably arranged in a fixed ring;

[0048] A gear ring is rotatably arranged in the fixed ring, and the inner ring of the gear ring is fixedly connected to the outer ring of the ring cutter;

[0049] A lower connecting piece, connecting the fixing ring and the limit regulating assembly;

[0050] The driving gear is rotatably arranged in the lower connecting member, and the driving gear is meshed with the gear ring.

[0051] Further, as a preference, the limit regulating component comprises:

[0052] An upper circular surface is slidably disposed in the positioning shaft, and a side portion of the upper circular surface is fixedly connected to an upper connecting member;

[0053] A lower circular surface is slidably disposed in the positioning shaft and is located below the upper circular surface, and a side portion of the lower circular surface is fixedly connected to the lower connecting member;

[0054] The upper gear is a one-way rotating gear, which is rotatably arranged in the upper circular surface;

[0055] A lower gear is rotatably arranged in the lower circular surface;

[0056] A limit shaft, connected to the upper gear and the lower gear respectively, the limit shaft is slidably connected to the upper gear in the vertical direction, and a limit surface is fixed on the top of the limit shaft;

[0057] The fixing screw is fixed on the outside of the positioning shaft, and the bottom is fixed on the same plane as the positioning shaft;

[0058] A connecting circular surface is slidably arranged on the fixing screw rod and is fixedly connected to the upper circular surface;

[0059] The rotating gear is rotatably arranged on the top of the connecting circular surface, is threadably connected with the fixing screw rod, and is meshed with the first transmission gear.

[0060] Further, as a preference, the retrieving device comprises:

[0061] The lifting mechanism is provided with a plurality of lifting mechanisms distributed in a straight line, each corresponding to the movable round table in the bearing template;

[0062] Two slide rails are symmetrically arranged in front and back and fixed on the side of the collecting box on the production machine body away from the lower film recovery mechanism;

[0063] A fixed shaft section is fixed to one end of the slide rail close to the collection box;

[0064] A collecting component is slidably arranged on the slide rail;

[0065] The connecting piece is rotated to connect the collecting assembly and the hydraulic mechanism, and the hydraulic mechanism is fixed at the bottom of the collecting box.

[0066] A coating process for producing chitosan dressings comprises the following steps:

[0067] Step 1: First, the carrying template is transported by the conveying mechanism to the lifting and moving mechanism, and the lifting and moving mechanism lifts the carrying template to the bottom of the unloading device;

[0068] Step 2: When the chitosan dressing needs to be double-sided coated, first a layer of bottom film is covered on the bearing template by the coating device, the lifting and moving mechanism drives the bearing template to move in the direction of the moving device, the unloading device unloads the chitosan dressing onto the bearing table, and the top mold is covered by the coating device; when the chitosan dressing needs to be single-sided coated, the lifting and moving mechanism drives the bearing template to move in the direction of the moving device, the unloading device unloads the chitosan dressing onto the bearing table, and the top mold is covered by the coating device;

[0069] Step 3: Driven by the moving device, the bearing template enters the circular cutting hot pressing device;

[0070] Step 4: As the bearing template gradually moves, at the ring cutting hot pressing device, the connecting horizontal plate is driven downward by the displacement mechanism to make the bottom of the positioning shaft fit with the top of the bearing template, and then the adjustment component drives the hot pressing component to move downward, and then under the action of the limit regulating component, the ring cutting component moves downward synchronously. In the process of the ring cutting component moving downward and fitting the roll film on the top of the bearing template, the ring cutting component limits and cuts the roll film at the receiving table, and then the hot pressing component continues to move downward to perform hot pressing;

[0071] Step 5: After the hot pressing is completed, the material receiving platform moves to the top of the lifting mechanism, and then the lifting mechanism lifts the chitosan dressing, and drives the collecting component to move to the bottom of the chitosan dressing through the hydraulic mechanism, and then the lifting mechanism places the chitosan dressing on the collecting component, and then the collecting component is restricted by the fixed shaft segment, and the chitosan dressing is transferred to the collecting box by rotation, thus completing the coating of the chitosan dressing;

[0072] Step 6: The lifting mechanism drives the empty bearing template to move down to the conveying mechanism to carry out the next round of chitosan dressing coating operation.

[0073] Compared with the prior art, the present invention has the following beneficial effects:

[0074] In the present invention, by setting up a conveying device, the bearing template is circulated and conveyed, and the feeding, coating, slitting, hot pressing, recycling and other operations are automatically performed without manual operation, thereby effectively improving the efficiency and quality of chitosan dressing coating; by setting up a coating device, the chitosan dressing can be coated on one side or both sides to meet more production needs; by setting up a circular cutting and hot pressing device, the chitosan dressing covered with the roll film is cut and hot pressed, and the roll film is completely attached to the chitosan dressing, thereby ensuring the accuracy and integrity of the coating, while reducing the risk of manual intervention and contamination. BRIEF DESCRIPTION OF THE DRAWINGS

[0075] Figure 1 It is a schematic diagram of the overall structure of a film coating device for the production of chitosan dressings;

[0076] Figure 2 It is a schematic diagram of the structure of the conveying device and the coating device;

[0077] Figure 3 It is a structural schematic diagram of the feeding device;

[0078] Figure 4 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0079] Figure 5 It is a schematic diagram of the structure of the ring cutting hot pressing device and the retracting device;

[0080] Figure 6 It is a side view of the ring cutting hot pressing device;

[0081] Figure 7 It is a schematic diagram of the structure of the regulating component and the limit regulating component;

[0082] Figure 8 is a top view of the ring cutting component;

[0083] Fig. 9 is a schematic diagram of the structure of the retrieving device;

[0084] In the figure: 1. production machine body; 2. conveying device; 3. laminating device; 4. unloading device; 5. moving device; 6. circular cutting and hot pressing device; 7. retracting device; 8. collecting box; 9. bearing template; 21. lifting mechanism; 22. conveying mechanism; 23. lifting and moving mechanism; 31. lower film conveying mechanism; 32. upper film conveying mechanism; 33. leveling cross bar; 34. positioning roller; 35. lower film recovery mechanism; 36. upper film recovery mechanism; 41. supporting frame; 42. storage chamber; 43. dispersed unloading chamber; 44. unloader; 45. fixed-point feeding mechanism; 51. mobile hydraulic shaft; 52. shaft body; 53. connecting panel; 54. elastic block; 61. displacement mechanism; 62. connecting cross plate; 63. adjustment component; 64. positioning shaft ;65. Hot pressing assembly;66. Circular cutting assembly;67. Limiting and regulating assembly;71. Lifting mechanism;72. Slide rail;73. Fixed shaft section;74. Collecting assembly;75. Rotating connecting piece;76. Hydraulic mechanism;91. Moving truncated table;631. Fixed frame;632. Transmission worm;633. First transmission gear;634. Second transmission gear;635. Rack;651. Hot pressing panel;652. Upper connecting piece;661. Fixed ring;662. Circular cutting knife;663. Gear ring;664. Lower connecting piece;665. Driving gear;671. Upper circular surface;672. Lower circular surface;673. Upper gear;674. Lower gear;675. Limiting shaft;676. Fixed screw;677. Connecting circular surface;678. Rotating gear. DETAILED DESCRIPTION

[0085] See also Figures 1 to 9 In an embodiment of the present invention, a coating device for producing chitosan dressings comprises:

[0086] A production machine body 1, wherein a conveying device 2 is provided inside the production machine body 1, wherein the conveying device 2 is provided with a lifting mechanism 21, a conveying mechanism 22 and a lifting and moving mechanism 23 in sequence, wherein the output end of the conveying mechanism 22 is connected to the lifting and moving mechanism 23, and the output end of the lifting mechanism 21 is connected to the conveying mechanism 22;

[0087] The unloading device 4 is fixed to one end of the top of the production machine body 1 and is located above the lifting and moving mechanism 23;

[0088] A moving device 5 is fixed on the production machine body 1, and the moving device 5 is adjacent to the unloading device 4;

[0089] The ring cutting and hot pressing device 6 is fixed on the production machine body 1 and is located on the side of the moving device 5 away from the unloading device 4;

[0090] The retracting device 7 is fixed on the production machine body 1 and is located above the lifting mechanism 21;

[0091] A collecting box 8 is fixed to the top of the production machine body 1 at one end opposite to the unloading device 4;

[0092] A bearing template 9 is movably arranged on the conveying device 2, and the bearing template 9 is provided with a plurality of receiving platforms for carrying chitosan dressings, a movable round table 91 which can slide up and down is provided at the center of the receiving platform, and a bayonet corresponding to the moving device 5 is provided at the bottom of the bearing template 9;

[0093] The coating device 3 is fixed on the production machine body 1 and is used for coating the chitosan dressing in the material receiving platform.

[0094] In this embodiment, the feeding device 4 comprises:

[0095] The support frame 41 is fixed on the production machine body 1 and is located above the lifting and moving mechanism 23;

[0096] The material storage chamber 42 is fixed on the top of the support frame 41;

[0097] A dispersing feeding chamber 43 is fixed at the bottom of the storage chamber 42;

[0098] A plurality of feeders 44 are linearly distributed and rotatably arranged in the dispersed feeder cavity 43;

[0099] There are a plurality of fixed-point feeding mechanisms 45 distributed in a straight line, which are arranged corresponding to the feeders 44 and fixed at the bottom of the dispersed feed chamber 43 .

[0100] That is to say, under the action of the feeder 44 in the dispersed feeding chamber 43, the chitosan dressing in the storage chamber 42 is divided into multiple groups corresponding to the receiving platform on the supporting template 9, and the feeding is carried out synchronously in batches. The feeder 44 outputs the individual chitosan dressings from the dispersed feeding chamber 43, and then transports the chitosan dressings through the fixed-point feeding mechanism 45, and limits and adjusts the chitosan dressings during the transportation process, so that the chitosan dressings fall smoothly and accurately on the receiving platform in the supporting template 9.

[0101] In this embodiment, the coating device 3 includes:

[0102] The lower film roll conveying mechanism 31 is fixed to the side of one end of the production machine body 1 close to the unloading device 4;

[0103] The upper film roll conveying mechanism 32 is fixed to the support frame 41 at one end away from the lower film roll conveying mechanism 31;

[0104] Two leveling cross bars 33 are symmetrically arranged and fixed at both ends of the production machine body 1 respectively;

[0105] Two positioning rollers 34 are arranged in a straight line and are fixed on the production machine body 1, one of which is close to the unloading device 4 and the other is close to the collecting box 8;

[0106] The lower film roll recovery mechanism 35 is fixed to the end of the production machine body 1 close to the collection box 8;

[0107] The upper film roll recovery mechanism 36 is disposed adjacent to the lower film roll recovery mechanism 35 and is located obliquely above the positioning roller 34 close to the collection box 8 .

[0108] That is to say, when it is necessary to coat the chitosan dressing on both sides, the lower film conveying mechanism 31 passes the film through the leveling cross bar 33 and covers it on the bearing template 9. After the unloading device 4 conveys the chitosan dressing to the film on the corresponding receiving platform, the upper film conveying mechanism 32, under the action of the positioning roller 34, fits the upper film on the lower film to coat the chitosan dressing on both sides. Then, after passing through the circular cutting and hot pressing device 6, the upper and lower film rolls are separated at the positioning roller 34 at the other end of the production body 1, and are respectively recovered by the lower film recovery mechanism 35 and the upper film recovery mechanism 36; when it is necessary to coat the chitosan dressing on one side, the unloading device 4 is used to transfer the chitosan dressing to the film on the corresponding receiving platform. After the chitosan dressing is conveyed to the corresponding material receiving platform by device 4, the upper film conveying mechanism 32, under the action of the positioning roller 34, fits the upper film onto the chitosan dressing on the material receiving platform. Then, after passing through the ring cutting and hot pressing device 6, the upper film is guided by the positioning roller 34 at the other end of the production body 1 and is recovered by the upper film recovery mechanism 36. It should be noted that the positioning rollers 34 and the leveling cross bar 33 at both ends of the production body 1 restrict the film roll so that the film roll is flat on the supporting template 9 and is completely fitted with the chitosan dressing, which is convenient for the ring cutting and hot pressing work and prevents the chitosan dressing from being displaced in the film roll, affecting the coating precision and accuracy.

[0109] In this embodiment, the mobile device 5 includes:

[0110] The mobile hydraulic shaft 51 is fixed on the production machine body 1;

[0111] A shaft body 52 is slidably disposed in the movable hydraulic shaft 51, and the shaft body 52 slides in the direction where the unloading device 4 is located;

[0112] A connecting panel 53 is fixed to an end of the shaft body 52 away from the movable hydraulic shaft 51;

[0113] The elastic block 54 is arranged on the top of the connecting panel 53 , and the elastic block 54 corresponds to the bottom opening of the bearing template 9 .

[0114] That is to say, after the unloading device 4 conveys the chitosan dressing to the bearing template 9, the bearing template 9 moves toward the direction of the ring cutting and hot pressing device 6 driven by the lifting and moving mechanism 23, and then the hydraulic shaft 51 is moved to drive the shaft body 52 to extend, drive the connecting panel 53 to move at the bottom of the bearing template 9, and press the elastic block 54 into the connecting panel 53. When the connecting panel 53 moves to the bottom snap-in of the bearing template 9, the elastic block 54 pops out, and then the hydraulic shaft 51 is moved to drive the shaft body 52 to retract, and at the same time pull the bearing template 9 to move toward the location of the ring cutting and hot pressing device 6. By moving the hydraulic shaft 51 to drive the connecting panel 53 to move repeatedly, with the cooperation of the elastic block 54 and the bearing template 9, the bearing template 9 can be transported to the ring cutting and hot pressing device 6 in turn.

[0115] In this embodiment, the ring cutting hot pressing device 6 includes:

[0116] The displacement mechanism 61 is fixed on the production machine body 1;

[0117] A connecting horizontal plate 62 is fixed below the displacement mechanism 61;

[0118] A plurality of adjusting components 63 are linearly distributed and fixedly connected to the connecting horizontal plate 62;

[0119] There are multiple positioning shafts 64, which correspond to the multiple adjustment components 63 respectively, and the positioning shafts 64 are fixed to the side of the adjustment components 63;

[0120] A hot pressing assembly 65 is fixed below the adjusting assembly 63, and the hot pressing assembly 65 is composed of a hot pressing panel 651 and an upper connecting member 652;

[0121] The ring cutting assembly 66 is coaxially arranged with the hot pressing assembly 65 and is located below the hot pressing assembly 65;

[0122] There are multiple limit regulating components 67, which correspond to multiple positioning shafts 64 respectively, and the limit regulating components 67 are fixed on the side of the positioning shaft 64 away from the adjustment component 63. The limit regulating components 67 are slidingly connected to the positioning shaft 64, and the limit regulating components 67 are fixedly connected to the hot pressing component 65 and the ring cutting component 66 respectively.

[0123] That is to say, under the action of the moving device 5, the supporting template 9 is transported to the ring cutting and hot pressing device 6, so that the material receiving table is directly below the displacement mechanism 61, and then the connecting cross plate 62 is driven downward by the displacement mechanism 61 to make the bottom of the positioning shaft 64 fit with the top of the supporting template 9, and then the adjusting component 63 drives the hot pressing component 65 to move downward, and then under the action of the limiting control component 67, the ring cutting component 66 moves downward synchronously, and in the process of the ring cutting component 66 moving downward and fitting with the roll film on the top of the supporting template 9, the ring cutting component 66 limits and cuts the roll film at the material receiving table, and then the hot pressing component 65 continues to move downward to perform hot pressing so that the roll film is completely fitted to the chitosan dressing. After the ring cutting and hot pressing are completed, the adjusting component 63 drives the hot pressing component 65 and the ring cutting component 66 to move up and reset in turn.

[0124] In this embodiment, the adjustment component 63 includes:

[0125] The fixed frame 631 is fixedly connected to the connecting horizontal plate 62;

[0126] The transmission worm 632 is rotatably arranged in the fixed frame 631 and is controlled by an external drive motor;

[0127] The first transmission gear 633 is rotatably disposed in the fixed frame 631 and meshes with the transmission worm 632;

[0128] The second transmission gear 634 is coaxially arranged with the first transmission gear 633 and rotatably arranged in the fixed frame 631;

[0129] The rack 635 is vertically arranged, with its side portion being slidably connected to the fixed frame 631 , and its bottom portion being fixedly connected to the hot pressing panel 651 , and the rack 635 is meshed with the second transmission gear 634 .

[0130] That is to say, when the external drive motor drives the transmission worm 632 to rotate forward, the transmission worm 632 drives the first transmission gear 633 to rotate, and then the second transmission gear 634 drives the rack 635 to move downward, and under the action of the rack 635, the hot pressing panel 651 is driven to move downward to perform hot pressing work; conversely, when the external drive motor drives the transmission worm 632 to rotate reversely, the transmission worm 632 drives the first transmission gear 633 to rotate, and then the second transmission gear 634 drives the rack 635 to move upward, and under the action of the rack 635, the hot pressing panel 651 is driven to move upward, and the hot pressing assembly 65 is reset.

[0131] In this embodiment, the annular cutting assembly 66 includes:

[0132] A fixing ring 661 is coaxially arranged with the hot pressing panel 651, and an inner ring of the fixing ring 661 is slidably connected with an outer ring of the hot pressing panel 651;

[0133] The circular cutting knife 662 is rotatably arranged in the fixed ring 661;

[0134] The gear ring 663 is rotatably disposed in the fixed ring 661, and the inner ring of the gear ring 663 is fixedly connected to the outer ring of the ring cutter 662;

[0135] The lower connecting member 664 connects the fixing ring 661 and the limit regulating assembly 67;

[0136] The driving gear 665 is rotatably disposed in the lower connecting member 664 , and the driving gear 665 is meshed with the gear ring 663 .

[0137] That is to say, when the adjustment component 63 drives the hot pressing component 65 to move downward, under the action of the limit control component 67, the circular cutting component 66 moves downward, and at the same time, during the downward movement of the circular cutting component 66, the gear ring 663 is driven to rotate in the fixed ring 661 through the driving gear 665, and then the gear ring 663 drives the circular cutting knife 662 to rotate in the fixed ring 661, and under the action of the fixed ring 661, the roll film is fixed and cut by the circular cutting knife 662, so that the hot pressing component 65 can heat-press the roll film on the surface of the chitosan dressing, so that the roll film can accurately and completely cover the chitosan dressing.

[0138] In this embodiment, the limit regulating component 67 includes:

[0139] The upper circular surface 671 is slidably disposed in the positioning shaft 64, and the side of the upper circular surface 671 is fixedly connected to the upper connecting member 652;

[0140] The lower circular surface 672 is slidably disposed in the positioning shaft 64 and is located below the upper circular surface 671 , and the side of the lower circular surface 672 is fixedly connected to the lower connecting member 664 ;

[0141] The upper gear 673 is a one-way rotating gear, rotatably disposed within the upper circular surface 671;

[0142] A lower gear 674 is rotatably disposed within the lower circular surface 672;

[0143] The limiting shaft 675 is connected to the upper gear 673 and the lower gear 674 respectively. The limiting shaft 675 is slidably connected to the upper gear 673 in the vertical direction, and a limiting surface is fixed on the top of the limiting shaft 675;

[0144] The fixing screw 676 is fixed to the outside of the positioning shaft 64, and the bottom is fixed to the same plane as the positioning shaft 64;

[0145] The connecting circular surface 677 is slidably disposed on the fixing screw 676 and is fixedly connected to the upper circular surface 671;

[0146] The rotating gear 678 is rotatably disposed on the top of the connecting circular surface 677 , and is threadedly connected to the fixing screw 676 , and meshes with the first transmission gear 633 .

[0147] That is to say, when the adjusting component 63 drives the hot pressing component 65 to move downward, the upper connecting piece 652 drives the upper circular surface 671 to move downward in the positioning shaft 64, and at the same time drives the rotating gear 678 to move synchronously on the fixed screw 676 through the connecting circular surface 677, and then under the action of the fixed screw 676, the rotating gear 678 rotates, driving the upper gear 673 to rotate, and the limiting shaft 675 is driven to rotate in the upper circular surface 671 through the upper gear 673, and then the lower gear 674 is driven to rotate through the limiting shaft 675, and the lower gear 674 drives the gear ring 663 to rotate through the rotating gear 678, and further drives the circular cutting knife 662 to rotate in the fixed ring 661 to cut the rolled film. As the hot pressing component 65 continues to move downward, the circular cutting component 66 is driven downward by the limiting shaft 675 to cut the rolled film. When component 66 reaches the bottom of the limit shaft 675, the hot pressing component 65 slides downward on the limit shaft 675, so that the hot pressing component 65 performs hot pressing on the rolled film in the ring cutting component 66. After the hot pressing is completed, the adjusting component 63 drives the hot pressing component 65 to move upward. At this time, the upper connecting piece 652 drives the upper circular surface 671 to move upward in the positioning shaft 64, and at the same time drives the rotating gear 678 to move synchronously on the fixed screw 676 through the connecting circular surface 677, and then under the action of the fixed screw 676, the rotating gear 678 rotates. Since the upper gear 673 is a unidirectional rotating gear, the upper gear 673 cannot drive the limit shaft 675 to rotate at this time, and then the hot pressing component 65 moves upward on the limit shaft 675 until it contacts the limit surface, and then drives the ring cutting component 66 to move upward, reset, and complete the ring cutting hot pressing work.

[0148] In this embodiment, the retracting device 7 comprises:

[0149] A plurality of lifting mechanisms 71 are arranged in a straight line, respectively corresponding to the movable truncated tables 91 in the bearing template 9;

[0150] Two slide rails 72 are symmetrically arranged in front and back and fixed on the side of the collection box 8 away from the lower film recovery mechanism 35 on the production machine body 1;

[0151] A fixed shaft section 73 is fixed to one end of the slide rail 72 close to the collection box 8;

[0152] A collecting assembly 74 is slidably disposed on the slide rail 72;

[0153] The connecting piece 75 is rotated to connect the collecting assembly 74 and the hydraulic mechanism 76 , and the hydraulic mechanism 76 is fixed at the bottom of the collecting box 8 .

[0154] That is to say, after completing the circumferential cutting and hot pressing work, the supporting template 9 moves toward the lifting mechanism 71 in the retracting device 7 under the push of the next supporting template 9, so that the movable circular table 91 in the middle of the material receiving table corresponds to the lifting mechanism 71, and then the chitosan dressing with coating is lifted up by the lifting mechanism 71, and then the collecting component 74 is pushed to slide on the slide rail 72 by the hydraulic mechanism 76. After the collecting component 74 slides to the bottom of the chitosan dressing, the lifting mechanism 71 is retracted and the chitosan dressing is placed on the collecting component 74. Then the hydraulic mechanism 76 drives the collecting component 74 to slide and retract. Under the restriction of the fixed shaft section 73, the collecting component 74 rotates under the action of the rotating connecting member 75, and the chitosan dressing is thrown into the collecting box 8 for collection.

[0155] In this embodiment, a coating process for producing chitosan dressings includes the following steps:

[0156] Step 1: First, the carrier template 9 is transported by the conveying mechanism 22 to the lifting and moving mechanism 23, and the lifting and moving mechanism 23 lifts the carrier template 9 to the bottom of the unloading device 4;

[0157] Step 2: When the chitosan dressing needs to be double-sided coated, firstly, a layer of bottom film is covered on the bearing template 9 by the coating device 3, and the lifting and moving mechanism 23 drives the bearing template 9 to move in the direction of the moving device 5, and the unloading device 4 unloads the chitosan dressing onto the bearing table, and covers the top mold by the coating device 3; when the chitosan dressing needs to be single-sided coated, the lifting and moving mechanism 23 drives the bearing template 9 to move in the direction of the moving device 5, and the unloading device 4 unloads the chitosan dressing onto the bearing table, and covers the top mold by the coating device 3;

[0158] Step 3: Then, under the action of the moving device 5, the shaft body 52 is extended by moving the hydraulic shaft 51, and the connecting panel 53 is driven to move at the bottom of the bearing template 9, and the elastic block 54 is pressed into the connecting panel 53. When the connecting panel 53 moves to the bottom bayonet of the bearing template 9, the elastic block 54 pops out, and then the hydraulic shaft 51 is moved to drive the shaft body 52 to retract, and at the same time, the bearing template 9 is pulled to move to the position of the ring cutting hot pressing device 6. The connecting panel 53 is repeatedly moved by moving the hydraulic shaft 51. Under the mutual cooperation of the elastic block 54 and the bearing template 9, the bearing template 9 can be transported to the ring cutting hot pressing device 6 in turn;

[0159] Step 4: With the gradual movement of the bearing template 9, at the ring cutting hot pressing device 6, the connecting cross plate 62 is driven downward by the displacement mechanism 61, so that the bottom of the positioning shaft 64 fits with the top of the bearing template 9, and then the adjustment component 63 drives the hot pressing component 65 to move downward, and then under the action of the limit regulating component 67, the ring cutting component 66 moves downward synchronously. In the process of the ring cutting component 66 moving downward and fitting the roll film on the top of the bearing template 9, the ring cutting component 66 limits and cuts the roll film at the material receiving platform, and then the hot pressing component 65 continues to move downward to perform hot pressing;

[0160] Step 5: After the hot pressing is completed, the adjusting component 63 drives the hot pressing component 65 and the ring cutting component 66 to move up and reset in sequence, the material receiving platform moves to the top of the lifting mechanism 71, and then the lifting mechanism 71 lifts the chitosan dressing, and drives the collecting component 74 to move to the bottom of the chitosan dressing through the hydraulic mechanism 76, and then the lifting mechanism 71 places the chitosan dressing on the collecting component 74, and then the collecting component 74 is restricted by the fixed shaft section 73, and the chitosan dressing is transferred to the collecting box 8 by rotation, so that the chitosan dressing is coated;

[0161] Step 6: The lifting mechanism 21 drives the empty bearing template 9 to move down to the conveying mechanism 22 to perform the next round of chitosan dressing coating operation.

[0162] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A film coating device for the production of chitosan dressings, characterized in that: include: A production machine body (1), wherein a conveying device (2) is arranged inside the production machine body (1), and the conveying device (2) is provided with a lifting mechanism (21), a conveying mechanism (22), and a lifting and moving mechanism (23) in sequence, wherein the output end of the conveying mechanism (22) is connected to the lifting and moving mechanism (23), and the output end of the lifting mechanism (21) is connected to the conveying mechanism (22); A material discharge device (4) is fixed to one end of the top of the production machine body (1) and is located above the lifting and moving mechanism (23); A moving device (5) is fixed on the production machine body (1), and the moving device (5) is adjacent to the unloading device (4); The ring cutting hot pressing device (6) is fixed on the production machine body (1) and is located on a side of the moving device (5) away from the unloading device (4); A retracting device (7) is fixed to the production machine body (1) and is located above the lifting mechanism (21); A collecting box (8) is fixed to the top of the production machine body (1) at an end opposite to the unloading device (4); A bearing template (9) is movably arranged on the conveying device (2), the bearing template (9) being provided with a plurality of receiving platforms for carrying chitosan dressings, a movable round platform (91) which can slide up and down is provided at the center of the receiving platform, and a bayonet corresponding to the moving device (5) is provided at the bottom of the bearing template (9); A coating device (3) is fixed on the production machine body (1) and is used to coat the chitosan dressing in the material receiving platform; The ring cutting and hot pressing device (6) comprises: A displacement mechanism (61) is fixed on the production machine body (1); A connecting horizontal plate (62) is fixed below the displacement mechanism (61); A plurality of adjusting components (63) are linearly distributed and fixedly connected to the connecting horizontal plate (62); A plurality of positioning shafts (64) are provided, each corresponding to a plurality of adjustment components (63), and the positioning shafts (64) are fixed to a side of the adjustment component (63); A hot pressing assembly (65) is fixed below the adjusting assembly (63), and the hot pressing assembly (65) is composed of a hot pressing panel (651) and an upper connecting member (652); The ring cutting assembly (66) is coaxially arranged with the hot pressing assembly (65) and is located below the hot pressing assembly (65); A plurality of position limiting and regulating components (67) are provided, each corresponding to a plurality of positioning shafts (64), and the position limiting and regulating components (67) are fixed to a side of the positioning shaft (64) away from the regulating component (63), the position limiting and regulating components (67) are slidably connected to the positioning shaft (64), and the position limiting and regulating components (67) are respectively fixedly connected to the hot pressing component (65) and the ring cutting component (66); The circumcision assembly (66) comprises: A fixing ring (661) is coaxially arranged with the hot pressing panel (651), and an inner ring of the fixing ring (661) is slidably connected to an outer ring of the hot pressing panel (651); A circular cutting knife (662) rotatably disposed in the fixed ring (661); A gear ring (663) is rotatably disposed in the fixed ring (661), and the inner ring of the gear ring (663) is fixedly connected to the outer ring of the ring cutter (662); A lower connecting member (664) connected to the fixing ring (661) and the limit regulating assembly (67); A driving gear (665) is rotatably disposed in the lower connecting member (664), and the driving gear (665) is meshed with the gear ring (663); The limit regulating component (67) comprises: An upper circular surface (671) is slidably disposed in the positioning shaft (64), and a side portion of the upper circular surface (671) is fixedly connected to the upper connecting member (652); A lower circular surface (672) is slidably disposed in the positioning shaft (64) and is located below the upper circular surface (671), and a side portion of the lower circular surface (672) is fixedly connected to the lower connecting member (664); The upper gear (673) is a one-way rotating gear and is rotatably disposed within the upper circular surface (671); A lower gear (674) rotatably disposed within the lower circular surface (672); A limit shaft (675) is connected to the upper gear (673) and the lower gear (674) respectively, the limit shaft (675) is slidably connected to the upper gear (673) in the vertical direction, and a limit surface is fixed on the top of the limit shaft (675); A fixing screw (676) is fixed to the outside of the positioning shaft (64), and the bottom thereof is fixed to the same plane as the positioning shaft (64); A connecting circular surface (677) is slidably disposed on the fixing screw (676) and is fixedly connected to the upper circular surface (671); The rotating gear (678) is rotatably disposed on the top of the connecting circular surface (677), is threadedly connected to the fixing screw (676), and is meshed with the first transmission gear (633).

2. The film coating device for producing chitosan dressing according to claim 1, characterized in that: The unloading device (4) comprises: A support frame (41) is fixed on the production machine body (1) and is located above the lifting and moving mechanism (23); A material storage chamber (42) fixed on the top of the supporting frame (41); A dispersing material discharge chamber (43) fixed at the bottom of the material storage chamber (42); A plurality of feeders (44) are linearly distributed and rotatably disposed in the dispersed feeder cavity (43); A plurality of fixed-point feeding mechanisms (45) are linearly distributed and arranged corresponding to the feeder (44), and are fixed at the bottom of the dispersed feeder cavity (43).

3. The film coating device for producing chitosan dressing according to claim 2, characterized in that: The coating device (3) comprises: A lower film roll conveying mechanism (31) is fixed to a side portion of the production machine body (1) at one end close to the unloading device (4); An upper film roll conveying mechanism (32) is fixed to an end of the support frame (41) away from the lower film roll conveying mechanism (31); Two leveling cross bars (33) are symmetrically arranged and fixed at two ends of the production machine body (1); Two positioning rollers (34) are arranged in a straight line and fixed on the production machine body (1), one of which is close to the unloading device (4) and the other is close to the collecting box (8); A lower film roll recovery mechanism (35) is fixed to the end of the production machine body (1) close to the collection box (8); The upper film roll recovery mechanism (36) is arranged adjacent to the lower film roll recovery mechanism (35) and is located obliquely above the positioning roller (34) close to the collection box (8).

4. The film coating device for producing chitosan dressing according to claim 1, characterized in that: The mobile device (5) comprises: A movable hydraulic shaft (51) is fixed on the production machine body (1); A shaft body (52) is slidably disposed in the movable hydraulic shaft (51), and the shaft body (52) slides in the direction where the unloading device (4) is located; A connecting panel (53) is fixed to an end of the shaft body (52) away from the movable hydraulic shaft (51); An elastic card block (54) is arranged on the top of the connection panel (53), and the elastic card block (54) corresponds to the bottom card opening of the bearing template (9).

5. The film coating device for producing chitosan dressing according to claim 1, characterized in that: The regulating component (63) comprises: A fixed frame (631) fixedly connected to the connecting horizontal plate (62); A transmission worm (632) is rotatably disposed in the fixed frame (631) and is controlled by an external drive motor; A first transmission gear (633) is rotatably disposed in the fixed frame (631) and meshes with the transmission worm (632); A second transmission gear (634) is coaxially arranged with the first transmission gear (633) and rotatably arranged in the fixed frame (631); The rack (635) is vertically arranged, with its side portion being slidably connected to the fixed frame (631) and its bottom portion being fixedly connected to the hot pressing panel (651), and the rack (635) is meshed with the second transmission gear (634).

6. A film coating device for producing chitosan dressing according to any one of claims 1 to 5, characterized in that: The retracting device (7) comprises: A plurality of lifting mechanisms (71) are linearly distributed and respectively correspond to the movable truncated tables (91) in the bearing template (9); Two slide rails (72) are symmetrically arranged in the front and rear directions and fixed to a side of the collection box (8) on the production machine body (1) away from the lower film roll recovery mechanism (35); A fixed shaft section (73) fixed to one end of the slide rail (72) close to the collection box (8); A collecting assembly (74) slidably disposed on the slide rail (72); The connecting piece (75) is rotated to connect the collecting assembly (74) and the hydraulic mechanism (76), wherein the hydraulic mechanism (76) is fixed at the bottom of the collecting box (8).

7. A coating process for the production of chitosan dressings, which uses a coating device for the production of chitosan dressings according to claim 6, characterized in that: The steps include: Step 1: First, the carrier template (9) is transported by the conveying mechanism (22) to the lifting and moving mechanism (23), and the lifting and moving mechanism (23) lifts and moves the carrier template (9) to the bottom of the unloading device (4); Step 2: When the chitosan dressing needs to be coated on both sides, a layer of bottom film is firstly coated on the bearing template (9) by the coating device (3), the lifting and moving mechanism (23) drives the bearing template (9) to move in the direction of the moving device (5), the unloading device (4) unloads the chitosan dressing onto the bearing table, and the coating device (3) covers the top mold; when the chitosan dressing needs to be coated on one side, the lifting and moving mechanism (23) drives the bearing template (9) to move in the direction of the moving device (5), the unloading device (4) unloads the chitosan dressing onto the bearing table, and the coating device (3) covers the top mold; Step 3: Driven by the moving device (5), the bearing template (9) enters the ring cutting hot pressing device (6); Step 4: As the bearing template (9) gradually moves, at the ring cutting hot pressing device (6), the connecting cross plate (62) is driven downward by the displacement mechanism (61) so that the bottom of the positioning shaft (64) fits with the top of the bearing template (9), and then the adjustment component (63) drives the hot pressing component (65) to move downward, and then under the action of the limit regulating component (67), the ring cutting component (66) moves downward synchronously. In the process of the ring cutting component (66) moving downward and fitting the roll film on the top of the bearing template (9), the ring cutting component (66) limits and cuts the roll film at the material receiving table, and then the hot pressing component (65) continues to move downward to perform hot pressing; Step 5: After the hot pressing is completed, the material receiving platform moves to the top of the lifting mechanism (71), the lifting mechanism (71) lifts up the chitosan dressing, and drives the collecting component (74) to move to the bottom of the chitosan dressing through the hydraulic mechanism (76), the lifting mechanism (71) places the chitosan dressing on the collecting component (74), and the collecting component (74) transfers the chitosan dressing to the collecting box (8) by rotating under the restriction of the fixed shaft section (73), thereby completing the coating of the chitosan dressing; Step 6: The lifting mechanism (21) drives the empty bearing template (9) to move down to the conveying mechanism (22) to carry out the next round of chitosan dressing coating operation.

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