A film coating device for an efficient and low-resistance air filtration material

Abstract

The present invention discloses a coating device for high-efficiency and low-resistance air filtering materials, which effectively achieves the purpose of fixing a non-woven fabric core tube, and comprises a support frame, wherein a winding roller is arranged at the upper end of the support frame, and both left and right ends of the winding roller are rotatably connected with a sleeve shaft, and the lower end of the sleeve shaft is slidably connected with the upper end of the support frame, and a multi-directional screw is rotatably connected inside the winding roller, and multiple expansion components are threadedly connected on the outer side of the multi-directional screw, and a screw groove is provided inside the multi-directional screw, and a push rod is provided inside the multi-directional screw, and a threaded column is fixedly connected on the outer side of the push rod, and the threaded column is threadedly connected to the screw groove, and the cooperation of the winding roller, the multi-directional screw, the first connecting rod, the second connecting rod and the like facilitates the fixing of the non-woven fabric core tube, and can also be adjusted according to the non-woven fabric core tube, thereby avoiding inflation inside the winding roller, and avoiding the gap formed by the back-and-forth friction between the protrusion and the winding roller, which causes air leakage and affects the production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of non-woven fabric laminating machines, and specifically to a laminating device for high-efficiency and low-resistance air filter materials. Background Art

[0002] 1. Understanding: Membrane non-woven fabric is a new type of fabric. It adopts the casting method, has strong compounding, does not stick with glue during the compounding process, has a soft hand feeling, no plastic feeling, no skin irritation, and is suitable for the production of disposable medical sheets, bed sheets, surgical gowns, isolation gowns, protective gowns, shoe covers and other health protection products.

[0003] When the existing roll fixes the non-woven fabric core tube, it first inflates the inside of the non-woven fabric roll. The gas enters to push the convex block to a state of squeezing against the inside of the non-woven fabric core tube, thereby fixing the non-woven fabric core tube to prevent rotation. However, during use, after a long time of sliding, the convex block and the roll generate friction, so it is very easy to leak air during use, resulting in the release of the fixation of the non-woven fabric core tube and a reduction in production efficiency.

[0004] 2. Retrieval: Search for relevant patents in this field in the patent library, and hundreds of patents are retrieved. Among them, the following two patents are relatively similar to the technical problems and technical features to be solved by this application;

[0005] 3. Citation 1: In the invention patent with the Chinese patent number 202111326535.4, a laminating device for non-woven fabric production is disclosed, including a working box. A long groove is opened on the left side of the top of the working box, and a laminating roller is rotatably connected inside the long groove.

[0006] 4. Summary 1: For this related patent, the inventor believes that: Although this device can trim the edges of the non-woven fabric, the roll is prone to friction with the convex block during use, and it is very easy to generate gaps, resulting in gas leakage inside the roll and affecting production efficiency.

[0007] 5. Citation 2: In the utility model patent with the Chinese patent number 201810552720.7, a feeding roller adjusting device for a non-woven fabric laminating machine is disclosed, including a laminating machine bracket and a feeding roller. A pair of bearing grooves with a "U" - shaped groove body are fixed on the laminating machine bracket. A pair of rotating bearings matching the bearing grooves are fixed at both ends of the feeding roller. An adjusting bearing is fixed outside the rotating bearing at any one end of the feeding roller. The laminating machine bracket is provided with an adjusting turntable, and the axis of the adjusting turntable is parallel to the axis of the adjusting bearing.

[0008] 6. Summary 2: For this related patent, the inventor believes that: Although this patent can adjust the position of the feeding roller, the roll is prone to friction with the convex block during use, and it is very easy to generate gaps, resulting in gas leakage inside the roll and affecting production efficiency.

[0009] On this basis, the present invention provides a coating device for high-efficiency and low-resistance air filter materials to solve this problem. Summary of the invention

[0010] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a coating device for high-efficiency and low-resistance air filter materials, which effectively achieves the purpose of fixing the non-woven fabric core tube.

[0011] A coating device for high-efficiency, low-resistance air filter materials comprises a support frame, wherein a roller is provided at the upper end of the support frame, both left and right ends of the roller are rotatably connected with sleeve shafts, the lower end of the sleeve shaft is slidably connected to the upper end of the support frame, the interior of the roller is rotatably connected with a multi-directional screw, the outer side of the multi-directional screw is threadedly connected with a plurality of expansion components, a screw groove is provided inside the multi-directional screw, a push rod is provided inside the multi-directional screw, a threaded column is fixedly connected to the outer side of the push rod, and the threaded column is threadedly connected to the screw groove.

[0012] Preferably, the expansion assembly includes a first threaded shaft threadedly connected to both sides of the multi-directional screw, a second threaded shaft is rotated on both sides of the multi-directional screw, a plurality of first connecting rods are rotated on the outer side of each first threaded shaft, a plurality of second connecting rods are rotated on the outer side of each second threaded shaft, and the middle part of each first connecting rod is rotationally connected.

[0013] Preferably, the other end of each of the first connecting rods is rotatably connected to a groove plate, the other end of each of the second connecting rods is rotatably connected to a convex groove plate, and each convex groove plate is slidably connected in the corresponding groove plate.

[0014] Preferably, the left end of the support frame is slidably connected to a first limit plate, the left end of the first limit plate is fixedly connected to a plurality of first limit springs, the other end of the first limit spring is fixedly connected to the support frame, the right end of the first limit plate is fixedly connected to a plurality of first limit tooth blocks, and a plurality of first limit grooves are provided on the left side of the sleeve shaft at the left end of the support frame, and each first limit groove cooperates with the corresponding first limit tooth block.

[0015] Preferably, the right end of the support frame is slidably connected with a second limit plate, the right end of the second limit plate is fixedly connected with a plurality of second limit springs, the other end of the second limit spring is fixedly connected to the support frame, the left end of the second limit plate is fixedly connected with a plurality of second limit tooth blocks, a plurality of second limit grooves are opened on the right side of the sleeve shaft at the right end of the support frame, each second limit groove cooperates with the corresponding first limit tooth block, and the right end of the support frame is rotatably connected with a rotating plate.

[0016] Preferably, the right end of the roller is provided with a plurality of first grooves, the right end of the multi-directional screw is provided with a plurality of second grooves, the right end of the top rod is slid with a sliding column, the left end of the sliding column is fixedly connected with a plurality of limit columns, the rear end of the sliding column is fixed with a first spring, and the other end of the first spring is fixedly connected to the top rod.

[0017] Preferably, each of the groove plates and the convex groove plates are fixedly connected to the upper outer side with a plurality of anti-slip pointed columns.

[0018] Compared with the technologies of 202111326535.4 and 201810552720.7, the present invention has the following technical effects:

[0019] 1. Through the cooperation of the roller, the multi-directional screw, the first connecting rod, the second connecting rod, etc., it is convenient to fix the non-woven fabric core tube, and it can also be adjusted according to the non-woven fabric core tube, avoiding the inflation inside the roller, the friction between the bump and the roller to form a gap, resulting in air leakage and affecting production efficiency.

[0020] 2. The cooperation of the first limiting plate, the second limiting plate, etc. facilitates the installation and disassembly of the roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall front view of the present invention.

[0022] Figure 2 It is a schematic cross-sectional view of the winding roller in the present invention.

[0023] Figure 3 It is a schematic diagram of the propping-up assembly in the present invention.

[0024] Figure 4 This is a schematic diagram of the cooperation between the first limiting tooth block and the first limiting groove in the figure of the present invention.

[0025] Figure 5 It is a schematic diagram of the cooperation between the second limiting tooth block and the second limiting groove in the present invention.

[0026] Figure 6 It is a schematic diagram of the cooperation between the first groove, the second groove and the limiting column in the present invention.

[0027] 1: support frame; 2: winding roller; 3: sleeve shaft; 4: multi-directional screw; 5: expansion assembly; 6: screw groove; 7: push rod; 8: threaded column; 501: first threaded shaft; 502: second threaded shaft; 503: first connecting rod; 504: second connecting rod; 505: groove plate; 506: convex groove plate; 9: first limiting plate; 10: first limiting spring; 11: first limiting tooth block; 12: first limiting groove; 13: second limiting plate; 14: second limiting spring; 15: second limiting tooth block; 16: second limiting groove; 17: rotating plate; 18: first groove; 19: second groove; 20: sliding column; 21: limiting column; 22: first spring; 23: anti-slip pointed column. Implementation

[0028] The following is combined with Figures 1-6 The specific implementation modes of the present invention are described in further detail.

[0029] Embodiment 1, by Figures 1-3 It is given that in order to achieve the purpose of fixing the core tube in the non-woven fabric, it includes a support frame 1, the upper end of the support frame 1 has grooves on the left and right sides, and the sleeve shafts 3 at both ends slide up and down in the corresponding grooves of the support frame 1, a roller 2 rotates between the sleeve shafts 3 at both ends, and the corresponding ends of the roller 2 rotate in the corresponding end sleeve shafts 3, and the roller 2 part has rectangular holes in a left-right symmetrical circular arrangement, a multi-directional screw 4 rotates inside the roller 2, and the multi-directional screw 4 has a pair of opposite threaded grooves at both ends, and the multi-directional screw 4 has a stretching component 5 at both ends, and the stretching component 5 cooperates with the threaded groove on the corresponding multi-directional screw 4, and the multi-directional screw 4 has a screw groove 6 inside the left end, and the distance between the screw grooves 6 is relatively short, and the multi-directional screw 4 has a push rod 7 inside, and a threaded column 8 is provided at the left end of the outer side of the push rod 7, and the threaded column 8 has only one circle, and the threaded column 8 rotates in the screw groove 6.

[0030] In the original state, the expansion component 5 is contracted and fits the winding roller 2. First, the core tube of the non-woven fabric is inserted into the outside of the winding roller 2, and then the push rod 7 is turned by hand. The push rod 7 drives the threaded column 8 to rotate, and the threaded column 8 rotates in the screw groove 6. When the threaded column 8 rotates to the limit in the screw groove 6, the threaded column 8 cannot rotate in the screw groove 6. When the push rod 7 continues to rotate, the threaded column 8 on the push rod 7 is stuck in the screw groove 6, thereby driving the multi-directional screw 4 to rotate. The multi-directional screw 4 idles inside the winding roller 2. When idling, the multi-directional screw 4 drives the corresponding expansion component 5 to slowly expand until the core tube of the non-woven fabric is squeezed and fixed by the structure described later. According to the size of the non-woven fabric core tube, the push rod 7 can be rotated to a specified position and then fixed by the structure described later.

[0031] Embodiment 2, based on embodiment 1, Figure 3Given that, in order to achieve the purpose of fixing the non-woven fabric core tube, there is a first threaded shaft 501 and a second threaded shaft 502 at both the left and right ends of the outer side of the multi-directional screw 4. A plurality of first connecting rods 503 and second connecting rods 504 are rotatably arranged on the outer sides of the first and second threaded shafts 502 respectively. The first connecting rods 503 and the second connecting rods 504 cross through the rectangular holes on the roller 2. The arrangement of the first connecting rods 503 and the second connecting rods 504 is arranged around the circumference of the first threaded shaft 501 and the second threaded shaft 502. Each first connecting rod 503 rotates around the axis in the middle of the second connecting rod 504. The lower side of the other end of each first connecting rod 503 rotates with the corresponding groove plate 505. The lower side of the other end of each second connecting rod 504 rotates with the corresponding convex groove plate 506. The convex groove plate 506 slides left and right within the groove plate 505. Anti-slip spikes 23 are provided on the outer sides of the groove plate 505 and the convex groove plate 506.

[0032] During use, rotate the ejector rod 7. After the ejector rod 7 drives the threaded column 8 to reach the limit position in the thread groove 6 inside the multi-directional screw 4, drive the multi-directional screw 4 from the ejector rod 7. The multi-directional screw 4 idles inside the roller 2. When the multi-directional screw 4 idles, it drives the corresponding first threaded shaft 501 and second threaded shaft 502 at both ends to move towards the corresponding sides of the first threaded shaft 501 and the second threaded shaft 502. Thus, when the first threaded shaft 501 and the second threaded shaft 502 at both ends move, they drive the corresponding first connecting rods 503 and second connecting rods 504 to rotate. At the same time, the corresponding first connecting rods 503 at both ends rotate around the axis in the middle of the second connecting rods 504. When the first connecting rod 503 rotates, it drives the groove plate 505 to move to the right. When the second connecting rod 504 rotates, it drives the convex groove plate 506 to move to the left. At the same time, the right end of the convex groove plate 506 slides left and right inside the groove plate 505. Thus, the groove plate 505 and the convex groove plate 506 expand outwards to squeeze and fix the non-woven fabric core tube. At the same time, the anti-slip spikes 23 on the outer sides of the groove plate 505 and the convex groove plate 506 are fixed to increase the fixation of the non-woven fabric core tube and prevent the non-woven fabric core tube from rotating.

[0033] Embodiment 3, on the basis of Embodiment 1, by Figure 4 and Figure 5Given that, in order to achieve the purpose of disassembling the non-woven fabric after film coating, there are support columns on the front and back sides at the left end of the support frame 1. A first limit plate 9 slides left and right on the support columns. A first limit spring 10 is fixed to the left end of the first limit plate 9, and the other end of the first limit spring 10 is fixed to the corresponding support column on the support frame 1. First limit teeth 11 are fixed to the front and back sides of the right end of the first limit plate 9. There is a corresponding first limit groove 12 on one side of the sleeve shaft 3 at the left end of the support frame 1 relative to the first limit teeth 11, and the first limit teeth 11 cooperate with the first limit groove 12. There are support columns on the front and back sides at the right end of the support frame 1. A second limit plate 13 slides left and right on the support columns. A second limit spring 14 is fixed to the right end of the second limit plate 13, and the other end of the second limit spring 14 is fixed to the corresponding support column on the support frame 1. Second limit teeth 15 are fixed to the front and back sides of the left end of the second limit plate 13. There is a corresponding second limit groove 16 on one side of the sleeve shaft 3 at the right end of the support frame 1 relative to the second limit teeth 15, and the first limit teeth 11 cooperate with the first limit groove 12. A rotating plate 17 rotates on the right side of the front end of the support frame 1.

[0034] During use, after the ejector rod 7 drives the threaded column 8 to reach the limit position in the thread groove 6 of the multi-directional screw 4, a part of the left end of the ejector rod 7 rotates out of the multi-directional screw 4. When the ejector rod 7 rotates out, it squeezes the first limit plate 9 to move leftward. When moving leftward, the first limit plate 9 squeezes the first limit spring 10, and the first limit teeth 11 also disengage from the first limit groove 12. The ejector rod 7 is limited by the following structure. Then, the second limit plate 13 is pulled rightward by hand to squeeze the second limit spring 14, and the second limit teeth 15 on the second limit plate 13 also disengage from the second limit groove 16. Then, the rotating plate 17 is rotated to the left side of the second limit tooth plate, and then the second limit tooth plate is released. The second limit spring 14 drives the second limit plate 13 to squeeze against the rotating plate 17. At this time, the second limit teeth 15 on the second limit plate 13 still disengage from the second limit groove 16. Then, the roller 2 is lifted upward to remove the film-coated non-woven fabric from the support frame 1.

[0035] Embodiment 4, on the basis of Embodiment 1, Figure 6 Given that, in order to achieve the purpose of limiting the ejector rod, there are a plurality of first grooves 18 at the right end of the roller 2, and the first grooves 18 are arranged in a circumferential arrangement. A plurality of second grooves 19 are opened at the right end of the multi-directional screw 4, and the second grooves 19 are arranged in a circumferential arrangement. A sliding column 20 slides left and right at the right end of the ejector rod 7. There are limit columns 21 arranged in a circumferential arrangement at the left end of the sliding column 20. A first spring 22 is fixed to the right end of the sliding column 20, and the other end of the first spring 22 is fixed to the ejector rod 7;

[0036] The original state of the push rod 7 is that the limit column 21 at the left end of the sliding column 20 passes through the first groove 18 and enters the second groove 19 to fix the push rod 7 and the multi-directional screw 4 on the roller 2. When the limit needs to be released, the sliding column 20 is pulled to the right and the first spring 22 is squeezed to make the limit column 21 at the left end of the sliding column 20 disengage from the first groove 18 and the second groove 19. Then the push rod 7 can be rotated to reach the specified position, and then the sliding column 20 is released and the limit column 21 is stuck in the first groove 18 and the second groove 19.

[0037] When the present invention is used, the original state of the stretching component 5 is contracted and fits with the winding roller 2. First, the core tube of the non-woven fabric is inserted into the outside of the winding roller 2. Then, the push rod 7 is rotated by hand, and the push rod 7 drives the threaded column 8 to rotate. The threaded column 8 rotates in the screw groove 6. When the threaded column 8 rotates to the limit in the screw groove 6, the threaded column 8 cannot rotate in the screw groove 6. When the push rod 7 continues to rotate, the threaded column 8 on the push rod 7 is stuck in the screw groove 6, thereby driving the multi-directional screw 4 to rotate. The multi-directional screw 4 rotates idly inside the winding roller 2. The multi-directional screw 4 rotates idly in the idling state. When the non-woven fabric core tube is rotated, the corresponding stretching component 5 is driven to slowly expand until the non-woven fabric core tube is squeezed and fixed by the structure described later. According to the size of the non-woven fabric core tube, the push rod 7 can be rotated to a specified position. When the limit needs to be released, the sliding column 20 is pulled to move to the right and the first spring 22 is squeezed to make the limit column 21 at the left end of the sliding column 20 disengage from the first groove 18 and the second groove 19. Then, the push rod 7 can be rotated to the specified position, and then the sliding column 20 is released and the limit column 21 is stuck in the first groove 18 and the second groove. When the winding roller 2 needs to be disassembled, the push rod 7 drives the threaded column 8 to reach the limit position in the screw groove 6 in the multi-directional screw 4, and the left end of the push rod 7 rotates out of the multi-directional screw 4. When the push rod 7 rotates out, the first limit plate 9 is squeezed to move to the left. When moving to the left, the first limit plate 9 squeezes the first limit spring 10, and the first limit tooth block 11 also disengages from the first limit groove 12. The push rod 7 is limited by the structure described later, and then the second limit plate 13 is pulled rightward by hand to squeeze the second limit spring 14. , the second limiting tooth block 15 on the second limiting plate 13 also disengages from the second limiting groove 16, and then the rotating plate 17 is rotated to the left and right of the second limiting tooth plate, and then the second limiting tooth plate is released, and the second limiting spring 14 drives the second limiting plate 13 to be squeezed on the rotating plate 17. At this time, the second limiting tooth block 15 and the second limiting groove 16 on the second limiting plate 13 are still disengaged from the second limiting groove 16, and then the winding roller 2 is lifted upwards to move the coated non-woven fabric out of the support frame 1, and the rear end of the support frame 1 can also adopt this structure.

[0038] The invention has novel structure, ingenious conception and simple and convenient operation, and the purpose of fixing the non-woven fabric core tube is effectively achieved through the design.

[0039] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A film laminating device for an efficient low-resistance air filter material, including a support frame (1), characterized in that, The upper end of the support frame (1) is provided with a winding roller (2), the left and right ends of the winding roller (2) are both rotatably connected with a sleeve shaft (3), the lower end of the sleeve shaft (3) is slidably connected to the upper end of the support frame (1), the inner part of the winding roller (2) is rotatably connected with a multi-directional screw rod (4), both ends of the multi-directional screw rod (4) have a pair of opposite threaded grooves, both ends of the multi-directional screw rod (4) have a spreading component (5), the spreading component (5) cooperates with the threaded groove on the corresponding multi-directional screw rod (4), the left end of the multi-directional screw rod (4) has a threaded groove (6), and the distance between the threaded grooves (6) is relatively short, the inner part of the multi-directional screw rod (4) has a push rod (7), the outer left end of the push rod (7) has a threaded column (8), and the threaded column (8) has only one circle, and the threaded column (8) rotates in the threaded groove (6); The left end of the support frame (1) is slidably connected to a first limit plate (9), the left end of the first limit plate (9) is fixedly connected to a plurality of first limit springs (10), the other end of the first limit spring (10) is fixedly connected to the support frame (1), the right end of the first limit plate (9) is fixedly connected to a plurality of first limit tooth blocks (11), and the left side of the sleeve shaft (3) at the left end of the support frame (1) is provided with a plurality of first limit grooves (12), each first limit groove (12) cooperates with a corresponding first limit tooth block (11); the right end of the support frame (1) is slidably connected to a first limit plate (9), the left end of the first limit plate (9) is fixedly connected to a plurality of first limit tooth blocks (11), and the left side of the sleeve shaft (3) at the left end of the support frame (1) is provided with a plurality of first limit grooves (12), each first limit groove (12) cooperates with a corresponding first limit tooth block (11); A second limiting plate (13) is movably connected, a plurality of second limiting springs (14) are fixedly connected to the right end of the second limiting plate (13), the other end of the second limiting spring (14) is fixedly connected to the support frame (1), a plurality of second limiting tooth blocks (15) are fixedly connected to the left end of the second limiting plate (13), a plurality of second limiting grooves (16) are provided on the right side of the sleeve shaft (3) at the right end of the support frame (1), each second limiting groove (16) cooperates with a corresponding first limiting tooth block (11), and a rotating plate (17) is rotatably connected to the right end of the support frame (1).

2. The film laminating device for an efficient low-resistance air filtration material according to claim 1, characterized in that, The expansion assembly (5) comprises a first threaded shaft (501) threadedly connected to both left and right sides of the multi-directional screw rod (4); second threaded shafts (502) are rotatably connected to both left and right sides of the multi-directional screw rod (4); a plurality of first connecting rods (503) are rotatably connected to the outer side of each first threaded shaft (501); a plurality of second connecting rods (504) are rotatably connected to the outer side of each second threaded shaft (502); and the middle part of each first connecting rod (503) and the second connecting rod (504) are rotatably connected.

3. The film laminating device for an efficient low-resistance air filtration material according to claim 2, characterized in that The other end of each of the first connecting rods (503) is rotatably connected to a groove plate (505), and the other end of each of the second connecting rods (504) is rotatably connected to a convex groove plate (506), and each convex groove plate (506) is slidably connected in the corresponding groove plate (505).

4. The film laminating device for an efficient low-resistance air filtration material according to claim 1, characterized in that, The right end of the roller (2) is provided with a plurality of first grooves (18), the right end of the multi-directional screw rod (4) is provided with a plurality of second grooves (19), a sliding column (20) is slidably disposed at the right end of the top rod (7), a plurality of limit columns (21) are fixedly connected to the left end of the sliding column (20), a first spring (22) is fixed to the rear end of the sliding column (20), and the other end of the first spring (22) is fixedly connected to the top rod (7).

5. The film laminating device for an efficient low-resistance air filtration material according to claim 3, characterized in that, A plurality of anti-slip spikes (23) are fixedly connected to the upper outer sides of each of the groove plates (505) and the convex groove plates (506).

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