An elastic cotton mesh laying device for processing non-woven medical hemostatic bandages
By designing a nonwoven medical hemostatic bandage processing equipment including conveyor belts, replacement components, compression components and end connection components, the problem of unsustainable supply of bandage materials in existing equipment is solved, and continuous supply of elastic cotton and efficient processing of bandages is achieved.
Patent Information
- Application Number
- CN202310399750.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-14
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2043-04-14
AI Technical Summary
The existing nonwoven medical hemostatic bandage processing equipment is difficult to achieve continuous feeding of bandage materials in the unrolled structure, which affects the processing efficiency of bandages.
An elastic cotton mesh laying device including a conveyor belt, replacement assembly, compression assembly and end connection assembly is designed. The bandage is conveyed at a constant speed through the conveyor belt, and the continuous feeding and compression of the elastic cotton is achieved by using the replacement assembly and compression assembly, and the heat sealing and fixing function is realized through the end connection assembly.
The continuous feeding of elastic cotton is achieved without shutting down, which improves the processing efficiency of the bandage and avoids problems such as wrinkles during the bandage laying process.
Smart Images

Figure CN116473755B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of non-woven medical hemostatic bandage processing, in particular to an elastic cotton mesh laying device for non-woven medical hemostatic bandage processing. Background Art
[0002] Nonwoven fabrics are widely used because of their short process flow, fast production rate, high output, low cost, wide application and multiple sources of raw materials.
[0003] Chinese invention patent CN202110569874.9 discloses a method for preparing a non-woven medical hemostatic bandage and a processing equipment thereof, including a mounting frame, a winding roller, a main winding roller and a controller, wherein a slitting structure with adjustable slitting width is connected to the middle end of the mounting frame, and the mounting frame is connected to a rotating structure, and the rotating structure is connected to an unwinding structure and a winding structure.
[0004] However, the above structure still has the following problems: after the unwinding structure completely unwinds the bandage material, the bandage material needs to be placed after the machine is shut down, which makes it difficult to achieve continuous feeding of the bandage material, affecting the processing efficiency of the bandage.
[0005] Based on this, the present invention designs an elastic cotton mesh laying device for processing non-woven medical hemostatic bandage to solve the above problems. Summary of the invention
[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides an elastic cotton mesh laying device for processing non-woven medical hemostatic bandages.
[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:
[0008] An elastic cotton web laying device for processing nonwoven medical hemostatic bandages comprises a frame on which a conveyor belt for continuously and uniformly conveying bandages is rotatably mounted;
[0009] The frame is provided with a replacement assembly for driving the elastic cotton roll roller to move to one side of the end connection assembly in sequence, and for facilitating quick replacement of the elastic cotton roll roller;
[0010] A pressing assembly for pressing the elastic cotton is rotatably mounted on the frame and the replacement assembly;
[0011] The frame is provided with an end connection assembly for heat-sealing and fixing the end of the elastic cotton on a roll of elastic cotton with the elastic cotton on a roll of elastic cotton on an upper adjacent roll.
[0012] Furthermore, the replacement component includes a driving motor, a third connecting frame, a reinforcing plate, a synchronous wheel, a synchronous belt, a transverse shaft and an installation locking component; the bottom of the third connecting frame is fixedly mounted on the frame, the driving motor is fixedly mounted on the outer wall of the third connecting frame, and a plurality of groups of transverse shafts are rotatably mounted on the inner wall of the third connecting frame from top to bottom, one end of one group of transverse shafts is fixedly connected to the output end of the driving motor, and both ends of each transverse shaft are respectively fixedly connected with a synchronous wheel, and the synchronous wheels on the same side of the transverse shaft are connected through a synchronous belt transmission, and a plurality of groups of reinforcing plates are fixedly connected with equal intervals between the two groups of synchronous belts, and an elastic cotton roll roller is detachably mounted on each reinforcing plate through an installation locking component.
[0013] Furthermore, both ends of the reinforcement plate are respectively connected with mounting locking components.
[0014] Furthermore, the installation locking assembly includes a connecting block, a semicircular plate, a locking plate, a second spring and a bearing limit seat; one end of the connecting block is fixedly connected to the reinforcing plate, and the other end of the connecting block is fixedly connected to a semicircular plate whose opening faces upward when it moves to a side close to the end connecting assembly; a locking plate is slidably connected to the protrusion on the upper end of the connecting block, and a second spring is installed between the locking plate and the protrusion on the upper end of the connecting block; one end of the second spring is fixedly connected to the locking plate, and the other end of the second spring is fixedly connected to the protrusion on the upper end of the connecting block; bearing limit seats are rotatably installed on both ends of the elastic cotton roll roller, and the two sets of bearing limit seats are respectively clamped and fixed on the semicircular plate, and the lower surface of one end of the locking plate is in contact with the arc-shaped limit groove of the bearing limit seat.
[0015] Furthermore, the clamping assembly includes a third guide roller and a pressure roller; the frame is rotatably mounted with a pressure roller for pressing the elastic cotton, and the third connecting frame is rotatably mounted with a third guide roller for guiding the elastic cotton at one end close to the end connecting assembly.
[0016] Furthermore, the end connection assembly includes a drive assembly and a heat sealing assembly; the drive assembly and the heat sealing assembly are connected.
[0017] Furthermore, the driving assembly includes a first guide rod, a cylinder, a first support frame and a first guide rod sliding seat; the bottom of the first support frame is fixedly installed on the frame, the upper end of the first support frame is fixedly connected to the cylinder, the output end of the cylinder is installed with a heat sealing assembly, and the top of the first support frame is fixedly connected to two groups of first guide rod sliding seats, the two groups of first guide rod sliding seats are respectively located on both sides of the cylinder, and the two groups of first guide rod sliding seats are respectively slidably connected with the first guide rod, and one end of the first guide rod is connected to the heat sealing assembly.
[0018] Furthermore, the heat sealing assembly includes a heat sealing plate, a first spring, a first connecting frame, a second connecting frame, a second guide roller, a side plate, a first guide roller and a second guide rod; one end of the first guide rod is fixedly connected to one end of the first connecting frame, and the other end of the first connecting frame is slidably connected to a plurality of groups of second guide rods, and the other ends of the second guide rods are respectively fixedly connected to the heat sealing plate, and the first springs are respectively installed on the second guide rods, one end of the first spring is fixedly connected to the heat sealing plate, and the other end of the first spring is fixedly connected to the first connecting frame; the lower end of the first connecting frame is rotatably installed with the first guide roller for guiding the elastic cotton; the third connecting frame is fixedly installed with the second connecting frame at one end close to the end connecting assembly, the second connecting frame is located below the elastic cotton roll roller, the upper end of the second connecting frame is fixedly installed with the side plate, and the second connecting frame is rotatably installed with the second guide roller for guiding the elastic cotton at one end close to the end connecting assembly; the side plate corresponds to the heat sealing plate on the left and right.
[0019] Beneficial Effects
[0020] The present invention conveys the bandage at a uniform speed through the conveyor belt, releases the elastic cotton onto the bandage on the conveyor belt through the elastic cotton roll roller on the replacement component, and can also realize quick and convenient replacement of the elastic cotton roll roller through the end connection component, and compacts the elastic cotton through the compacting component to ensure that the elastic cotton is in a compacted state when released, thereby avoiding problems such as wrinkles that affect the laying effect of the elastic cotton, and when the release of the elastic cotton on a roll of elastic cotton roll roller on one side of the end connection component is basically completed, the end connection component is started to heat-seal and fix the end of the elastic cotton on the elastic cotton roll roller with the elastic cotton on an adjacent roll of elastic cotton roll roller above it, and the replacement component is used to drive the adjacent roll of elastic cotton roll roller above to move to one side of the end connection component, so as to continue to release the elastic cotton, and the whole process does not need to be stopped, and continuous feeding of the elastic cotton can be achieved, which can effectively improve the processing efficiency of the bandage. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 The main structure of the elastic cotton mesh laying equipment for processing non-woven medical hemostatic bandage of the present invention is three-dimensional. Figure 1 ;
[0023] Figure 2 This is a front view of the structure of an elastic cotton mesh laying device for processing a nonwoven medical hemostatic bandage of the present invention;
[0024] Figure 3 The main structure of the elastic cotton mesh laying equipment for processing non-woven medical hemostatic bandage of the present invention is three-dimensional. Figure 2 ;
[0025] Figure 4 The main structure of the elastic cotton mesh laying equipment for processing non-woven medical hemostatic bandage of the present invention is three-dimensional. Figure 3 ;
[0026] Figure 5 The main structure of the elastic cotton mesh laying equipment for processing non-woven medical hemostatic bandage of the present invention is three-dimensional. Figure 4 ;
[0027] Figure 6 for Figure 5 Enlarged view of point A in the middle.
[0028] The numbers in the figure represent:
[0029] 1. Frame 2. Conveyor belt 3. End connection assembly 31. Heat sealing plate 32. First spring 33. First connecting frame 34. First guide rod 35. Cylinder 36. First support frame 37. Side plate 38. First guide roller 39. Second guide rod 310. First guide rod sliding seat 311. Second connecting frame 312. Second guide roller 4. Clamping assembly 41. Third guide roller 42. Pressing roller 5. Replacement assembly 51. Drive motor 52. Third connecting frame 53. Second spring 54. Connecting block 55. Locking plate 56. Semicircular plate 57. Reinforcement plate 58. Synchronous wheel 59. Synchronous belt 510. Horizontal axis 511. Bearing limit seat. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0031] The present invention will be further described below in conjunction with the embodiments.
[0032] Example 1
[0033] Please refer to the instruction manual Figure 1-6 , an elastic cotton mesh laying device for processing non-woven medical hemostatic bandages, comprising a frame 1, on which a conveyor belt 2 for continuously and uniformly conveying bandages is rotatably mounted;
[0034] The frame 1 is provided with a replacement component 5 for driving the elastic cotton roll to move to one side of the end connection component 3 in sequence, and for facilitating quick replacement of the elastic cotton roll;
[0035] A pressing assembly 4 for pressing the elastic cotton is rotatably mounted on the frame 1 and the replacement assembly 5;
[0036] An end connection assembly 3 for heat-sealing and fixing the end of an elastic cotton roll on an elastic cotton roll roller with the elastic cotton roll on an adjacent elastic cotton roll roller above the elastic cotton roll is installed on the frame 1;
[0037] The present invention conveys the bandage at a uniform speed through the conveyor belt 2, releases the elastic cotton onto the bandage on the conveyor belt 2 through the elastic cotton roll roller on the replacement component 5, and can also realize convenient and quick replacement of the elastic cotton roll roller through the end connection component 3, and compresses the elastic cotton through the compression component 4 to ensure that the elastic cotton is in a compressed state when released, so as to avoid problems such as wrinkles that affect the laying effect of the elastic cotton, and when the release of the elastic cotton on a roll of elastic cotton roll roller on one side of the end connection component 3 is basically completed, the end connection component 3 is started to heat-seal and fix the end of the elastic cotton on the elastic cotton roll roller and the elastic cotton on the elastic cotton roll roller adjacent to it above, and the replacement component 5 drives the elastic cotton roll roller adjacent to it to move to one side of the end connection component 3, so as to continue to release the elastic cotton, and the whole process does not need to be stopped, and the continuous feeding of the elastic cotton can be realized, which can effectively improve the processing efficiency of the bandage;
[0038] The replacement component 5 includes a driving motor 51, a third connecting frame 52, a reinforcing plate 57, a synchronous wheel 58, a synchronous belt 59, a transverse shaft 510 and an installation locking component; the bottom of the third connecting frame 52 is fixedly mounted on the frame 1, the driving motor 51 is fixedly mounted on the outer wall of the third connecting frame 52, and a plurality of groups of transverse shafts 510 are rotatably mounted on the inner wall of the third connecting frame 52 from top to bottom, one end of one group of transverse shafts 510 is fixedly connected to the output end of the driving motor 51, and both ends of each transverse shaft 510 are respectively fixedly connected with a synchronous wheel 58, and the synchronous wheels 58 on the same side of the transverse shaft 510 are connected by a synchronous belt 59, and a plurality of groups of reinforcing plates 57 are fixedly connected between the two groups of synchronous belts 59 at equal intervals, and elastic cotton roll rollers are detachably mounted on each reinforcing plate 57 through an installation locking component;
[0039] The driving motor 51 drives a group of transverse shafts 510 to rotate, the transverse shaft 510 drives the synchronous wheel 58 to rotate, the synchronous wheel 58 drives other groups of synchronous wheels 58 to rotate synchronously through the synchronous belt 59, the synchronous belt 59 drives several groups of reinforcing plates 57 to rotate synchronously, and the reinforcing plates 57 drive the elastic cotton roll roller to move;
[0040] Both ends of the reinforcing plate 57 are respectively connected with mounting locking components;
[0041] The locking assembly is installed and comprises a connecting block 54, a semicircular plate 56, a locking plate 55, a second spring 53 and a bearing limit seat 511; one end of the connecting block 54 is fixedly connected to the reinforcing plate 57, and the other end of the connecting block 54 is fixedly connected to a semicircular plate 56 whose opening faces upward when it moves to a side close to the end connecting assembly 3; a locking plate 55 is slidably connected to the protrusion at the upper end of the connecting block 54, and a second spring 53 is installed between the locking plate 55 and the protrusion at the upper end of the connecting block 54; one end of the second spring 53 is fixedly connected to the locking plate 55, and the other end of the second spring 53 is fixedly connected to the protrusion at the upper end of the connecting block 54; the two ends of the elastic cotton roll roller are rotatably installed with bearing limit seats 511 respectively, and the two groups of bearing limit seats 511 are respectively clamped and fixed on the semicircular plate 56, and the lower surface of one end of the locking plate 55 is in contact with the arc-shaped limit groove of the bearing limit seat 511;
[0042] When installing the elastic cotton roll, the locking plate 55 is pulled outward to clamp and fix the bearing limit seat 511 of the elastic cotton roll on the semicircular plate 56 respectively, and then the locking plate 55 is released. Under the elastic force of the second spring 53, the locking plate 55 moves to the lower surface to fit and contact with the arc-shaped limit groove of the bearing limit seat 511, thereby stably locking the elastic cotton roll on the semicircular plate 56;
[0043] The pressing assembly 4 includes a third guide roller 41 and a pressure roller 42; the frame 1 is rotatably mounted with the pressure roller 42 for pressing the elastic cotton, and the third connecting frame 52 is rotatably mounted with the third guide roller 41 for guiding the elastic cotton at one end close to the end connecting assembly 3;
[0044] The elastic cotton is guided by the third guide roller 41, and the pressing roller 42 presses the elastic cotton to keep the elastic cotton in a straight state;
[0045] The end connection assembly 3 includes a driving assembly and a heat sealing assembly; the driving assembly and the heat sealing assembly are connected;
[0046] The driving assembly includes a first guide rod 34, a cylinder 35, a first support frame 36 and a first guide rod sliding seat 310; the bottom of the first support frame 36 is fixedly installed on the frame 1, the upper end of the first support frame 36 is fixedly connected to the cylinder 35, the output end of the cylinder 35 is installed with a heat sealing assembly, and the top of the first support frame 36 is fixedly connected with two groups of first guide rod sliding seats 310, the two groups of first guide rod sliding seats 310 are respectively located on both sides of the cylinder 35, and the first guide rod 34 is slidably connected to the two groups of first guide rod sliding seats 310, and one end of the first guide rod 34 is connected to the heat sealing assembly;
[0047] The heat sealing assembly is driven to move left and right by the cylinder 35, and the movement of the heat sealing assembly is limited by the first guide rod 34 and the first guide rod sliding seat 310 to ensure the movement stability of the heat sealing assembly;
[0048] The heat sealing assembly includes a heat sealing plate 31, a first spring 32, a first connecting frame 33, a second connecting frame 311, a second guide roller 312, a side plate 37, a first guide roller 38 and a second guide rod 39; one end of the first guide rod 34 is fixedly connected to one end of the first connecting frame 33, and the other end of the first connecting frame 33 is slidably connected to a plurality of groups of second guide rods 39, and the other ends of the second guide rods 39 are respectively fixedly connected to the heat sealing plate 31, and the second guide rods 39 are respectively installed with first springs 32, one end of the first spring 32 is fixedly connected to the heat sealing plate 31, and the second guide rods 39 are respectively installed with first springs 32. The other end of a spring 32 is fixedly connected to the first connecting frame 33; the lower end of the first connecting frame 33 is rotatably mounted with a first guide roller 38 for guiding the elastic cotton; the end of the third connecting frame 52 close to the end connecting assembly 3 is fixedly mounted with a second connecting frame 311, the second connecting frame 311 is located below the elastic cotton roll roller, the upper end of the second connecting frame 311 is fixedly mounted with a side plate 37, and the end of the second connecting frame 311 close to the end connecting assembly 3 is rotatably mounted with a second guide roller 312 for guiding the elastic cotton; the side plate 37 corresponds to the left and right of the heat sealing plate 31;
[0049] When the elastic cotton on the elastic cotton roll of the current roll is basically released, the first connecting frame 33 and the heat sealing plate 31 are driven to move toward the side plate 37 by starting the cylinder 35. At this time, the elastic cotton end of the elastic cotton roll of the upper roll is placed on the elastic cotton on the elastic cotton roll of the current roll, and the heat sealing plate 31 presses and fixes the elastic cotton. When the first connecting frame 33 moves, it drives the first guide roller 38 to move toward the side plate 37, so that the elastic cotton is gradually relaxed, which is conducive to the continued laying of the elastic cotton during hot pressing. The crimping is completed Afterwards, the cylinder 35 drives the first connecting frame 33 and the heat-sealing plate 31 to move away from the side plate 37 and reset, and the elastic cotton is straightened again; and the elastic cotton on the upper elastic cotton roll roller can continue to be unwound, and at the same time, the driving motor 51 can be started to drive the upper elastic cotton roll roller to move to the set position on one side of the end connecting component 3, and the elastic cotton roll roller that has been unwound can also be quickly disassembled and installed; the whole process does not require shutdown, and continuous feeding of elastic cotton can be achieved, which can effectively improve the processing efficiency of the bandage.
[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. An elastic cotton web laying device for processing non-woven medical hemostatic bandages, comprising a frame (1), characterized in that: A conveyor belt (2) for continuously and uniformly conveying bandages is rotatably mounted on the frame (1); The frame (1) is provided with a replacement component (5) for driving the elastic cotton roll roller to move sequentially to one side of the end connection component (3) and facilitating quick replacement of the elastic cotton roll roller; A pressing component (4) for pressing the elastic cotton is rotatably mounted on the frame (1) and the replacement component (5); The frame (1) is provided with an end connection assembly (3) for heat-sealing and fixing the end of the elastic cotton on a roll of elastic cotton with the elastic cotton on an adjacent roll of elastic cotton above it; The replacement assembly (5) comprises a driving motor (51), a third connecting frame (52), a reinforcing plate (57), a synchronous wheel (58), a synchronous belt (59), a transverse shaft (510) and a mounting locking assembly; the bottom of the third connecting frame (52) is fixedly mounted on the frame (1), the driving motor (51) is fixedly mounted on the outer wall of the third connecting frame (52), a plurality of groups of transverse shafts (510) are rotatably mounted from top to bottom on the inner wall of the third connecting frame (52), one end of a group of transverse shafts (510) is fixedly connected to the output end of the driving motor (51), both ends of each transverse shaft (510) are respectively fixedly connected to a synchronous wheel (58), the synchronous wheels (58) on the same side of the transverse shaft (510) are connected by a synchronous belt (59), a plurality of groups of reinforcing plates (57) are fixedly connected at equal intervals between the two groups of synchronous belts (59), and each reinforcing plate (57) is detachably mounted with an elastic cotton roll roller via a mounting locking assembly; Both ends of the reinforcing plate (57) are respectively connected to mounting locking components; The mounting locking assembly comprises a connecting block (54), a semicircular plate (56), a locking plate (55), a second spring (53) and a bearing stop seat (511); one end of the connecting block (54) is fixedly connected to the reinforcing plate (57); the other end of the connecting block (54) is fixedly connected to a semicircular plate (56) whose opening faces upward when the connecting block (54) moves to a side close to the end connecting assembly (3); a locking plate (55) is slidably connected to a protrusion on the upper end of the connecting block (54); the locking plate (55) and the connecting block (54) are connected to each other. ) is installed between the protrusions at the upper ends of the connecting block (54), one end of the second spring (53) is fixedly connected to the locking plate (55), and the other end of the second spring (53) is fixedly connected to the protrusion at the upper end of the connecting block (54), and bearing limit seats (511) are rotatably installed at both ends of the elastic cotton roll roller, and the two groups of bearing limit seats (511) are respectively clamped and fixed on the semicircular plate (56), and the lower surface of one end of the locking plate (55) is in contact with the arc-shaped limit groove of the bearing limit seat (511); The pressing assembly (4) comprises a third guide roller (41) and a pressure roller (42); the frame (1) is rotatably mounted with a pressure roller (42) for pressing the elastic cotton, and the third connecting frame (52) is rotatably mounted with a third guide roller (41) for guiding the elastic cotton at one end close to the end connecting assembly (3); The end connection assembly (3) comprises a drive assembly and a heat sealing assembly; the drive assembly and the heat sealing assembly are connected; The driving assembly comprises a first guide rod (34), a cylinder (35), a first support frame (36) and a first guide rod sliding seat (310); the bottom of the first support frame (36) is fixedly mounted on the frame (1); the upper end of the first support frame (36) is fixedly connected to the cylinder (35); the output end of the cylinder (35) is installed with a heat sealing assembly; the top of the first support frame (36) is fixedly connected to two groups of first guide rod sliding seats (310); the two groups of first guide rod sliding seats (310) are respectively located on both sides of the cylinder (35); the first guide rods (34) are respectively slidably connected to the two groups of first guide rod sliding seats (310); one end of the first guide rod (34) is connected to the heat sealing assembly; The heat sealing assembly comprises a heat sealing plate (31), a first spring (32), a first connecting frame (33), a second connecting frame (311), a second guide roller (312), a side plate (37), a first guide roller (38) and a second guide rod (39); one end of the first guide rod (34) is fixedly connected to one end of the first connecting frame (33), the other end of the first connecting frame (33) is slidably connected to a plurality of groups of second guide rods (39), the other ends of the second guide rods (39) are respectively fixedly connected to the heat sealing plate (31), the second guide rods (39) are respectively mounted with a first spring (32), one end of the first spring (32) is fixedly connected to the heat sealing plate (31), and the second guide rods (39) are respectively mounted with a first spring (32). The first spring (32) is connected to the first connecting frame (33), and the other end of the first spring (32) is fixedly connected to the first connecting frame (33); the lower end of the first connecting frame (33) is rotatably mounted with a first guide roller (38) for guiding the elastic cotton; the end of the third connecting frame (52) close to the end connecting assembly (3) is fixedly mounted with a second connecting frame (311), the second connecting frame (311) is located below the elastic cotton roll roller, the upper end of the second connecting frame (311) is fixedly mounted with a side plate (37), and the end of the second connecting frame (311) close to the end connecting assembly (3) is rotatably mounted with a second guide roller (312) for guiding the elastic cotton; the side plate (37) corresponds to the heat sealing plate (31) on the left and right.
Citation Information
Patent Citations
A non-woven medical hemostasis bandage preparation method and processing equipment thereof
CN113288322A
Compaction device with heating function
CN206548705U