Automatic gauze feeding mechanism

Abstract

The utility model discloses a screen automatic feeding mechanism. It includes: frame, be provided with a plurality of transmission shafts on the frame, center baffle, the center baffle is fixed on the lateral wall of transmission shaft and is located the middle position of transmission shaft, sleeve, the sleeve is set up on transmission shaft and is symmetrically distributed on the both sides of center baffle, the lateral wall of sleeve is equipped with the conveying rope limiting groove, be provided with the sleeve drive mechanism that is connected with sleeve on transmission shaft, the sleeve is under the control of sleeve drive mechanism and carries out the axial activity along transmission shaft, and two sleeves are synchronous and draw apart or synchronous and draw apart center baffle. The utility model has the beneficial effects that: can flexible adaptation different original length's screen, avoid screen deviation, stack or conveying rope slippage when conveying, guarantee the symmetry and stability of feeding.

Description

Technical Field

[0001] This utility model relates to the technical field of water-cut bag manufacturing, and in particular to an automatic mesh feeding mechanism. Background Technology

[0002] A water-filter bag is a small mesh bag typically installed at the drain outlet of a kitchen sink, basin, or bathroom floor drain. Its core function is to physically intercept food scraps, hair, and other solid waste, separating water from debris and thus preventing pipe blockage. Common materials for water-filter bags include polyester, non-woven fabric, or polyethylene.

[0003] Chinese Patent Publication No. CN213447550U, published on June 15, 2021, discloses an automatic cutting and sewing device for net bags. The device includes at least: a conveying device with a conveying working section along its movement path, the conveying working section having at least one inlet and one outlet, and the portion of the conveying device located within the conveying working section moving from the inlet to the outlet; a cutting device and a sewing device, the cutting device and the sewing device being fixedly positioned near the conveying device, and the conveying device passing sequentially through the cutting device and the sewing device as it moves within the conveying working section. The drawback of this patent is that the conveying device cannot be width-adjusted, making it difficult to adapt to netting materials of different original lengths. It is prone to problems such as netting conveying deviation, stacking, and conveyor rope slippage, resulting in insufficient feeding symmetry and stability, which in turn affects product processing accuracy and production efficiency, failing to meet the flexible conveying requirements of different specifications of netting materials in automated production.

[0004] In summary, there is a need for an automatic yarn feeding mechanism that can adapt to yarns of different original lengths. Utility Model Content

[0005] The present invention aims to overcome the shortcomings of the prior art by providing an automatic feeding mechanism for yarn that can adapt to yarns of different original lengths.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic mesh feeding mechanism includes: A frame, on which several drive shafts are mounted; A center stop, which is fixed to the outer wall of the drive shaft and located at the middle of the drive shaft; The sleeve is sleeved on the drive shaft and symmetrically distributed on both sides of the central stop. The outer wall of the sleeve is provided with a conveyor rope limiting groove. The drive shaft is provided with a sleeve drive mechanism connected to the sleeve. Under the control of the sleeve drive mechanism, the sleeve moves axially along the drive shaft. The two sleeves move towards or away from the central stop synchronously.

[0007] The conveyor rope is placed in the conveyor rope limiting groove on the sleeve and is used to transport the raw material mesh. During transport, the mesh is fixed between the conveyor ropes on both sides. The sleeve drive mechanism controls the sleeves on both sides to move synchronously closer to or further away from the center stop along the drive shaft, thereby adjusting the relative distance between the two sleeves and thus the distance between the conveyor ropes on both sides. This allows for flexible adaptation to meshes of different original lengths, preventing mesh offset, stacking, or conveyor rope slippage during transport, and ensuring the symmetry and stability of the feeding.

[0008] Preferably, two sliders are fixed on the inner wall of the sleeve, and the two sliders are symmetrically distributed about the central axis of the sleeve. An axial groove matching the sliders is provided on the outer wall of the drive shaft. The sliders are placed in the axial groove and slidably connected to it. A chamber is provided inside the drive shaft, and the sliders pass through the axial groove and are placed inside the chamber. A connecting rod is fixed between the two sliders. The sleeve drive mechanism is located inside the chamber and connected to the sliders on the two sleeves. The sliding engagement between the sliders and the axial groove provides guidance and limitation for the axial movement of the sleeve along the drive shaft, ensuring the smoothness and coaxiality of the sleeve's movement.

[0009] Preferably, the sleeve driving mechanism includes a driving gear installed inside the chamber, the driving gear being rotatably connected to the chamber, and the driving gear being located between two sleeves. A first transmission rack, meshing with one side of the driving gear, is fixed to a slider of one sleeve, and a second transmission rack, meshing with the other side of the driving gear, is fixed to a slider of the other sleeve. By utilizing the meshing transmission between the driving gear and the first and second transmission racks, precise synchronous and reverse adjustment of the two sleeves is achieved, simplifying the driving structure while improving the spacing adjustment accuracy.

[0010] Preferably, a central block is fixed to the connecting rod, located at the central axis of the drive shaft. A guide tube is fixed to the side wall of the central block, and a centrifugal rod is mounted on the guide tube. One end of the centrifugal rod is placed inside the guide tube and slidably connected thereto. A positioning locking tooth is provided on the end face of the other end of the centrifugal rod. A locking tooth rack matching the positioning locking tooth is provided on the inner wall of the chamber. The locking tooth rack and the positioning locking tooth are arranged opposite to each other, and the locking tooth rack and the central axis of the drive shaft are parallel to each other. By using centrifugal force to drive the positioning locking tooth on the centrifugal rod to engage with the locking tooth rack in the chamber, the position of the sleeve can be automatically locked during the operation of the mechanism, preventing the sleeve from shifting during feeding.

[0011] Preferably, a protrusion is fixed on the side wall of the centrifuge rod, located at one end of the centrifuge rod. The inner side wall of the guide tube is provided with a protrusion limiting groove that matches the protrusion. The protrusion is placed within the protrusion limiting groove and slidably connected to it. The cooperation between the protrusion and the protrusion limiting groove restricts the movement trajectory of the centrifuge rod, preventing it from shifting or falling off during sliding, thus ensuring the stable operation of the positioning and locking mechanism.

[0012] Preferably, the conduit is equipped with a return spring inside, one end of which is connected to the side wall of the central block, and the other end of which is connected to the centrifugal rod. The return spring can automatically reset and unlock the centrifugal rod after the mechanism stops and the centrifugal force disappears, requiring no additional operation.

[0013] The beneficial effects of this utility model are: it can flexibly adapt to nets of different original lengths, avoid net offset, stacking or slippage of the conveyor rope during net conveying, and ensure the symmetry and stability of feeding; it ensures the smoothness and coaxiality of the sleeve movement; it simplifies the drive structure while improving the spacing adjustment accuracy; and it avoids sleeve displacement during feeding. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the front view of the drive shaft; Figure 3 yes Figure 2 Internal structure diagram; Figure 4 yes Figure 2 Sectional view at point AA; Figure 5 yes Figure 2 Sectional view at point BB.

[0015] In the diagram: 1. Frame, 2. Drive shaft, 3. Center stop, 4. Sleeve, 5. Conveyor rope limiting groove, 6. Connecting rod, 7. Drive gear, 8. First transmission rack, 9. Second transmission rack, 10. Center block, 11. Guide tube, 12. Centrifugal rod, 13. Positioning locking tooth, 14. Locking rack, 15. Protrusion, 16. Protrusion limiting groove, 17. Return spring, 18. Slider, 19. Chamber, 20. Conveyor rope, 21. Drive motor, 22. Axial groove. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0017] like Figures 1-5 In the embodiments described above, an automatic yarn feeding mechanism includes: A frame 1, on which several drive shafts 2 are mounted; Center stop 3, the center stop 3 is fixed on the outer side wall of the transmission shaft 2 and located in the middle of the transmission shaft 2; The sleeve 4 is sleeved on the drive shaft 2 and symmetrically distributed on both sides of the central stop 3. The outer wall of the sleeve 4 is provided with a conveying rope limiting groove 5. The drive shaft 2 is provided with a sleeve drive mechanism connected to the sleeve 4. Under the control of the sleeve drive mechanism, the sleeve 4 moves axially along the drive shaft 2. The two sleeves 4 move closer or further away from the central stop 3 at the same time.

[0018] Two sliders 18 are fixed on the inner wall of the sleeve 4. The two sliders 18 are symmetrically distributed about the central axis of the sleeve 4. An axial groove 22 matching the sliders 18 is provided on the outer wall of the drive shaft 2. The sliders 18 are placed in the axial groove 22 and slidably connected to it. A chamber 19 is provided inside the drive shaft 2. The sliders 18 pass through the axial groove 22 and are placed inside the chamber 19. A connecting rod 6 is fixed between the two sliders 18. The sleeve drive mechanism is set in the chamber 19 and connected to the sliders 18 on the two sleeves 4.

[0019] The arrangement of the drive shaft 2 (i.e., the drive roller and the support roller) on the frame 1 has been disclosed in the prior art patents and will not be repeated here.

[0020] The sleeve drive mechanism includes a drive gear 7 installed inside the chamber 19, which is rotatably connected to the chamber 19. The drive gear 7 is located between two sleeves 4. A first transmission rack 8, which meshes with one side of the drive gear 7, is fixed on a slider 18 of one sleeve 4, and a second transmission rack 9, which meshes with the other side of the drive gear 7, is fixed on a slider 18 of the other sleeve 4. The drive gear 7 is controlled and driven by a drive motor 21. The drive motor 21 can be powered by installing a slip ring connector on the end wall of the chamber 19. This is a conventional technique for powering a motor in a rotating structure and will not be described in detail.

[0021] A central block 10 is fixed on the connecting rod 6. The central block 10 is located at the central axis of the transmission shaft 2. A conduit 11 is fixed on the side wall of the central block 10. A centrifugal rod 12 is provided on the conduit 11. One end of the centrifugal rod 12 is placed inside the conduit 11 and slidably connected to it. A positioning locking tooth 13 is provided on the end face of the other end of the centrifugal rod 12. A locking tooth rack 14 that matches the positioning locking tooth 13 is provided on the inner wall of the chamber 19. The locking tooth rack 14 and the positioning locking tooth 13 are arranged opposite to each other. The locking tooth rack 14 and the central axis of the transmission shaft 2 are parallel to each other.

[0022] A protrusion 15 is fixed on the side wall of the centrifugal rod 12. The protrusion 15 is located at one end of the centrifugal rod 12. A protrusion limiting groove 16 matching the protrusion 15 is provided on the inner side wall of the conduit 11. The protrusion 15 is placed in the protrusion limiting groove 16 and slidably connected to it.

[0023] The inside of the conduit 11 is provided with a reset spring 17. One end of the reset spring 17 is connected to the side wall of the central block 10, and the other end of the reset spring 17 is connected to the centrifugal rod 12.

[0024] This application controls all the motors in the drive shafts to work simultaneously through the central control system, driving the drive gears to rotate, thereby adjusting the distance between the two sides of the conveyor rope on the entire frame. This action can be achieved by existing computer programming combined with existing microcontrollers, which is existing technology and will not be described in detail here.

[0025] Adjustment Principle: During width adjustment, the drive motor 21 drives the drive gear 7 to rotate. Since the rack, slider 18, and sleeve 4 are fixedly connected, the meshing transmission action between the drive gear 7 and the first transmission rack 8, and between the drive gear 7 and the second transmission rack 9, will cause the two sleeves 4 on the drive shaft 2 to move synchronously closer to or further away from the center stop 3, thereby adjusting the relative distance between the two sleeves 4, and consequently adjusting the distance between the conveyor ropes 20 on both sides, to flexibly adapt to different original lengths of mesh. During the rotation of the drive shaft 2, the centrifugal rod 12 inside the guide tube 11 on the center block 10 will automatically extend the guide tube 11 under centrifugal force, move towards the locking rack 14, and mesh with the locking rack 14 through the positioning locking teeth 13 at its end, thereby locking the position of the sleeve 4. The return spring 17 can automatically reset and release the lock after the drive shaft 2 stops rotating and the centrifugal force disappears.

Claims

1. An automatic feeding mechanism for yarn mesh, characterized in that, include: A frame (1) is provided with several drive shafts (2). A central stop (3) is fixed to the outer side wall of the transmission shaft (2) and located in the middle of the transmission shaft (2); The sleeve (4) is sleeved on the drive shaft (2) and symmetrically distributed on both sides of the central stop (3). The outer wall of the sleeve (4) is provided with a conveying rope limiting groove (5). The drive shaft (2) is provided with a sleeve drive mechanism connected to the sleeve (4). Under the control of the sleeve drive mechanism, the sleeve (4) moves axially along the drive shaft (2). The two sleeves (4) move towards or away from the central stop (3) synchronously.

2. The automatic feeding mechanism for yarn mesh according to claim 1, characterized in that, Two sliders (18) are fixed on the inner wall of the sleeve (4). The two sliders (18) are symmetrically distributed about the central axis of the sleeve (4). An axial groove (22) matching the slider (18) is provided on the outer wall of the drive shaft (2). The slider (18) is placed in the axial groove (22) and slidably connected to it. A chamber (19) is provided inside the drive shaft (2). The slider (18) passes through the axial groove (22) and is placed inside the chamber (19). A connecting rod (6) is fixed between the two sliders (18). The sleeve drive mechanism is set in the chamber (19) and connected to the sliders (18) on the two sleeves (4).

3. The automatic feeding mechanism for yarn mesh according to claim 2, characterized in that, The sleeve drive mechanism includes a drive gear (7) installed inside the chamber (19), the drive gear (7) and the chamber (19) are rotatably connected, the drive gear (7) is located between two sleeves (4), a first transmission rack (8) is fixed on a slider (18) of one sleeve (4) and meshes with one side of the drive gear (7), and a second transmission rack (9) is fixed on a slider (18) of the other sleeve (4) and meshes with the other side of the drive gear (7).

4. An automatic yarn feeding mechanism according to any one of claims 2-3, characterized in that, A central block (10) is fixed on the connecting rod (6). The central block (10) is located at the central axis of the transmission shaft (2). A conduit (11) is fixed on the side wall of the central block (10). A centrifugal rod (12) is provided on the conduit (11). One end of the centrifugal rod (12) is placed inside the conduit (11) and slidably connected to it. A positioning locking tooth (13) is provided on the end face of the other end of the centrifugal rod (12). A locking tooth strip (14) matching the positioning locking tooth (13) is provided on the inner wall of the chamber (19). The locking tooth strip (14) and the positioning locking tooth (13) are arranged opposite to each other. The locking tooth strip (14) and the central axis of the transmission shaft (2) are parallel to each other.

5. The automatic feeding mechanism for yarn mesh according to claim 4, characterized in that, A protrusion (15) is fixed on the side wall of the centrifugal rod (12). The protrusion (15) is located at one end of the centrifugal rod (12). The inner side wall of the conduit (11) is provided with a protrusion limiting groove (16) that matches the protrusion (15). The protrusion (15) is placed in the protrusion limiting groove (16) and slidably connected to it.

6. The automatic mesh feeding mechanism according to claim 4, characterized in that, The catheter (11) is provided with a reset spring (17) inside. One end of the reset spring (17) is connected to the side wall of the central block (10), and the other end of the reset spring (17) is connected to the centrifugal rod (12).

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