Breathable film extrusion casting die

Abstract

The utility model discloses a breathable film extrusion casting die which comprises a fixing frame, a die body is arranged at the position, close to one side, of the top of the fixing frame, the die body comprises a fixed shell and a movable shell, a support is arranged on the side face of the fixed shell, one end of the support is fixed to the fixing frame, and the other end of the support is fixed to the movable shell. A center shaft rotating piece is arranged on the side face, close to the bottom, of the movable object, the two ends of the center shaft rotating piece are rotationally connected to the fixing frame, a driving adjusting assembly is arranged on the side face, located above the center shaft rotating piece, of the movable shell, and the two ends of the driving adjusting assembly are rotationally connected to the fixing frame. According to the utility model, the driving adjusting assembly and the middle shaft rotating piece are arranged, the middle shaft rotating piece stably supports the movable shell and enables the movable shell to move, and the movable shell is driven to rotate around the middle shaft rotating piece under the driving adjustment of the driving adjusting assembly, so that the movable shell is separated from the fixed shell; in this way, an inner cavity between the movable shell and the fixed shell can be exposed, and the interior of the mold can be cleaned greatly conveniently.

Description

Technical Field

[0001] This utility model relates to the field of breathable membrane production technology, and in particular to a breathable membrane extrusion casting mold. Background Technology

[0002] Breathable membranes are thin film materials that allow gas to pass through. Their advantage is that they are breathable and are widely used in medical, hygiene products and packaging materials. Breathable membranes are generally produced using extrusion casting technology, which requires the use of extrusion casting molds. Specifically, the material is melted and then extruded through a slit die to cast into a thin film. This allows for precise control of the film thickness and improves product quality.

[0003] In the current use of extrusion casting dies, the material discharge hole is easily blocked by material. During cleaning, only the external part of the casting die can be cleaned. Because the die is heavy and fixed with bolts, it is inconvenient to disassemble and clean the inside of the material discharge hole, resulting in low operating efficiency.

[0004] Therefore, how to provide a breathable membrane extrusion casting mold is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] One objective of this invention is to provide a breathable membrane extrusion casting mold. This invention solves the problems in the prior art where the material discharge hole is easily blocked by material and the mold is heavy and inconvenient to disassemble due to bolt fixing, resulting in only the surface of the casting mold being cleaned, which is not thorough enough.

[0006] According to an embodiment of the present invention, a breathable membrane extrusion casting mold includes a fixed frame. A mold is provided on the top of the fixed frame near one side. The mold includes a fixed shell and a movable shell. A bracket is provided on the side of the fixed shell, and one end of the bracket is fixed to the fixed frame. A central shaft rotating component is provided on the side of the movable shell near the bottom. Both ends of the central shaft rotating component are rotatably connected to the fixed frame. A drive adjustment component is provided on the side of the movable shell above the central shaft rotating component. Both ends of the drive adjustment component are rotatably connected to the fixed frame.

[0007] The central rotating component includes a supporting rotating plate and a fixed shaft. The supporting rotating plate is rotatably sleeved on the middle position of the fixed shaft through a bearing. One end of the supporting rotating plate is fixed to the surface of the movable housing, and both ends of the fixed shaft are rotatably connected to the fixed frame.

[0008] The drive adjustment assembly includes two sets of arc plates and external toothed grooves. The external toothed grooves are formed on the outer side of the two sets of arc plates. The two sets of arc plates are fixed to the surface of the movable housing, and the arc center of the two sets of arc plates coincides with the fixed axis.

[0009] The drive adjustment assembly also includes a drive assembly, which includes a drive motor, a drive gear, a first transmission gear, a drive shaft, and a second transmission gear. The drive motor is fixed on the inner wall of the fixed frame, the drive gear is fixed on the output shaft of the drive motor, the first transmission gear is fixedly sleeved on the drive shaft, and the second transmission gear is fixed on the surface of the drive shaft near both ends. The two ends of the drive shaft are rotatably connected to the fixed frame. The first transmission gear meshes with the drive gear, and the second transmission gear meshes with the external tooth groove.

[0010] Two sets of stabilizing components are also provided on the fixed frame near the two sets of arc plates. Each set of stabilizing components includes a stabilizing shaft, a stabilizing wheel, and a stabilizing seat. The stabilizing shaft is fixed to the inner wall of the fixed frame, the stabilizing wheel rotates and is sleeved on the surface of the stabilizing shaft, and the stabilizing seat is fixed on the fixed frame and is located at the other end of the stabilizing shaft.

[0011] A locking assembly is provided on the fixed frame at the position corresponding to the drive gear. The locking assembly includes an adjusting groove, an adjusting block, a pushing groove, a locking block, a longitudinal adjusting bolt, and a transverse adjusting bolt. The adjusting groove is located on the fixed frame at the position corresponding to the drive gear. The adjusting block is movable inside the adjusting groove. The pushing groove is located on the side of the adjusting block near the drive gear. The locking block is movable inside the pushing groove. A transverse threaded hole is provided on the adjusting block at the position corresponding to the transverse adjusting bolt. One end of the transverse adjusting bolt is rotatably connected to the locking block, and the other end of the transverse adjusting bolt extends to the outside of the adjusting block after passing through the transverse threaded hole. A longitudinal threaded hole is provided on the fixed frame at the position corresponding to the longitudinal adjusting bolt. One end of the longitudinal adjusting bolt is rotatably connected to the adjusting block, and the other end of the longitudinal adjusting bolt extends to the outside of the fixed frame after passing through the longitudinal threaded hole.

[0012] The beneficial effects of this utility model are:

[0013] By setting up a drive adjustment component and a central rotating component, the central rotating component stably supports and moves the movable housing. Under the drive adjustment component, the movable housing will rotate around the central rotating component, thereby separating the movable housing from the fixed housing. This exposes the inner cavity between the movable housing and the fixed housing, greatly facilitating the cleaning of the mold's interior. This solves the problem in the prior art that the material discharge hole is easily blocked by material, and the mold is heavy and inconvenient to disassemble due to bolt fixing, resulting in only the surface of the casting mold being cleaned, which is not thorough enough.

[0014] By setting up a stabilizing component, which is supported on the inner side of the arc-shaped plate and works with the second transmission gear on the outer side to clamp and stabilize the arc-shaped plate, the stability of the arc-shaped plate's movement is improved. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a three-dimensional flow chart of a breathable membrane extrusion casting mold proposed in this utility model.

[0017] Figure 2 This is a three-dimensional cross-sectional flowchart of the position of the drive adjustment component in a breathable membrane extrusion casting mold proposed in this utility model.

[0018] Figure 3 This is a three-dimensional cross-sectional flowchart showing the positions of the central shaft rotating component and the drive adjustment component in a breathable membrane extrusion casting die proposed in this utility model.

[0019] Figure 4 This is a three-dimensional flow diagram of the locking component in a breathable membrane extrusion casting mold proposed in this utility model.

[0020] The attached diagram shows: 1. Fixed frame; 2. Mold; 3. Fixed housing; 4. Movable housing; 5. Bracket; 6. Central shaft rotating component; 7. Drive adjustment assembly; 8. Support rotating plate; 9. Fixed shaft; 10. Arc plate; 11. External toothed groove; 12. Drive assembly; 13. Drive motor; 14. Drive gear; 15. First transmission gear; 16. Drive shaft; 17. Second transmission gear; 18. Stabilizing assembly; 19. Stabilizing shaft; 20. Stabilizing wheel; 21. Stabilizing seat; 22. Locking assembly; 23. Adjusting groove; 24. Adjusting block; 25. Pushing groove; 26. Locking block; 27. Longitudinal adjusting bolt; 28. Lateral adjusting bolt; 29. ​​Lateral threaded hole; 30. Longitudinal threaded hole. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] Example 1:

[0023] refer to Figure 1 and Figure 2The system includes a fixed frame 1, with a mold 2 located near one side of the top of the fixed frame 1. The mold 2 includes a fixed housing 3 and a movable housing 4. A support 5 is located on the side of the fixed housing 3, with one end of the support 5 fixed to the fixed frame 1. The support 5 is a side support plate used to stably fix the fixed housing 3 to the fixed frame 1. A central axis rotating component 6 is located near the bottom of the side of the movable housing, which is used to rotate the movable housing 4. Both ends of the central axis rotating component 6 are rotatably connected to the fixed frame 1. The central axis rotating component 6 includes a support rotating plate 8 and a fixed shaft 9. The support rotating plate 8 is rotatably sleeved on the middle position of the fixed shaft 9 through a bearing. One end of the support rotating plate 8 is fixed to the surface of the movable housing 4. Both ends of the fixed shaft 9 are rotatably connected to the fixed frame 1. During operation, when the movable housing 4 rotates, it will drive the support rotating plate 8 to rotate. The support rotating plate 8 rotates around the axis of the fixed shaft 9, so that the range of motion of the movable housing 4 is arc-shaped.

[0024] refer to Figure 2 and Figure 3A drive adjustment assembly 7 is provided on the side of the movable housing 4 above the central rotating component 6. Both ends of the drive adjustment assembly 7 are rotatably connected to the fixed frame 1. The drive adjustment assembly 7 includes two sets of arc-shaped plates 10 and external toothed grooves 11. The external toothed grooves 11 are formed on the outer surfaces of the two sets of arc-shaped plates 10, covering the outer side of the arc-shaped plates 10. The two sets of arc-shaped plates 10 are fixed to the surface of the movable housing 4, and the arc centers of the two sets of arc-shaped plates 10 coincide with the fixed shaft 9. Thus, the movement of the two sets of arc-shaped plates 10 will drive the movable housing 4 to rotate around the fixed shaft 9. The dynamic adjustment assembly 7 also includes a drive assembly 12, which is used to drive the arc plate 10 to move stably. The drive assembly 12 includes a drive motor 13, a drive gear 14, a first transmission gear 15, a drive shaft 16, and a second transmission gear 17. The drive motor 13 is fixed to the inner wall of the fixed frame 1, the drive gear 14 is fixed to the output shaft of the drive motor 13, the first transmission gear 15 is fixedly sleeved on the drive shaft 16, and the second transmission gear 17 is fixed on the surface of the drive shaft 16 near both ends. The number of second transmission gears 17 is [not specified]. The positions and quantities of the arc-shaped plates 10 are matched to ensure that the two sets of second transmission gears 17 rotate synchronously to drive the two sets of arc-shaped plates 10. The two sets of arc-shaped plates 10 are axially symmetrical about the axis of symmetry of the movable housing 4, so that the movable housing 4 is subjected to balanced forces during movement. The two ends of the drive shaft 16 are rotatably connected to the fixed frame 1. The first transmission gear 15 meshes with the drive gear 14, and the second transmission gear 17 meshes with the external tooth groove 11. During operation, the drive motor 13 is started, which drives the drive gear 14. When the drive gear 14 rotates, it drives the first transmission gear 15 to rotate. The rotation of the first transmission gear 15 drives the drive shaft 16 to rotate. The rotation of the drive shaft 16 drives the second transmission gear 17 to rotate. The rotation of the second transmission gear 17 will drive the two sets of arc plates 10 to move simultaneously through the external tooth groove 11. The movement of the arc plates 10 will drive the movable housing 4 to rotate away from the fixed housing 3. This will separate the movable housing 4 from the fixed housing 3, exposing the inner cavities of the movable housing 4 and the fixed housing 3, making it easier to clean the inner cavity of the entire mold 2.

[0025] Example 2:

[0026] refer to Figure 2 and Figure 3Two sets of stabilizing components 18 are also provided on the fixing frame 1 near the two sets of arc-shaped plates 10. The stabilizing components 18 are used in conjunction with the second transmission gear 17 to achieve the effect of clamping the arc-shaped plates 10, so that the arc-shaped plates 10 move stably. Each set of stabilizing components 18 includes a stabilizing shaft 19, a stabilizing wheel 20, and a stabilizing seat 21. The stabilizing shaft 19 is fixed to the inner wall of the fixing frame 1, the stabilizing wheel 20 is rotatably sleeved on the surface of the stabilizing shaft 19, and the stabilizing seat 21 is fixed to the fixing frame 1 and is provided with At the other end of the stabilizing shaft 19, the surface of the stabilizing wheel 20 is in contact with the inner side of the arc-shaped plate 10. The second transmission gear 17 meshes with the outer tooth groove 11. When the second transmission gear 17 drives the arc-shaped plate 10 to move through the outer tooth groove 11, the arc-shaped plate 10 will drive the stabilizing wheel 20 to rotate on the stabilizing shaft 19. The stabilizing wheel 20 supports the inner side of the arc-shaped plate 10, preventing the arc-shaped plate 10 from deforming due to force during movement and causing the outer tooth groove 11 to separate from the second transmission gear 17, thereby improving the stability of the movement at this position.

[0027] Example 3:

[0028] refer to Figure 2 and Figure 4A locking assembly 22 is provided on the fixed frame 1 at the position corresponding to the drive gear 14. The locking assembly 22 includes an adjusting groove 23, an adjusting block 24, a pushing groove 25, a locking block 26, a longitudinal adjusting bolt 27, and a transverse adjusting bolt 28. The adjusting groove 23 is opened on the fixed frame 1 at the position corresponding to the drive gear 14. The adjusting block 24 moves inside the adjusting groove 23. There are positions inside the adjusting groove 23 that lock the adjusting groove 23. To prevent the adjusting block 24 from separating from the adjusting groove 23, the width of the adjusting groove 23 is equal to the width of the adjusting block 24. The height of the adjusting groove 23 is three times that of the adjusting block 24, providing sufficient space for the adjusting block 24 to move up and down. The pushing groove 25 is located on the side of the adjusting block 24 closest to the drive gear 14. The locking block 26 moves within the pushing groove 25, and its thickness and width match those of the pushing groove 25, ensuring that the locking block 26 only moves along the pushing groove 25. A transverse threaded hole 29 is provided on the adjusting block 24 at the position corresponding to the transverse adjusting bolt 28, and one end of the transverse adjusting bolt 28 is rotatably connected to… On the locking block 26, the other end of the transverse adjusting bolt 28 passes through the transverse threaded hole 29 and extends to the outside of the adjusting block 24. The fixing frame 1 has a longitudinal threaded hole 30 corresponding to the position of the longitudinal adjusting bolt 27. One end of the longitudinal adjusting bolt 27 is rotatably connected to the adjusting block 24, and the other end of the longitudinal adjusting bolt 27 passes through the longitudinal threaded hole 30 and extends to the outside of the fixing frame 1. During operation, when the movable housing 4 is rotated to the appropriate position, the longitudinal adjusting bolt 27 is rotated to drive the adjusting block 24 to move up and down in the adjusting groove 23. This up and down movement of the adjusting block 24 will drive the locking block 26 in the pushing groove 25 to move up and down to the appropriate position. Then, the transverse adjusting bolt 28 is rotated to push the locking block 26 to move towards the driving gear 14 until the locking block 26 is locked on the surface of the driving gear 14. This can lock the position of the driving gear 14 and prevent the driving gear 14 from rotating. When the driving gear 14 does not rotate, the first transmission gear 15 and the second transmission gear 17 will not rotate, thereby keeping the arc plate 10 and the movable housing 4 stable.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A breathable film extrusion cast die characterized by, The utility model relates to a moulding machine, including fixed frame (1), fixed frame (1) top near one side position is provided with mould (2), mould (2) includes fixed casing (3) and movable casing (4), the side of fixed casing (3) is provided with support (5), one end of support (5) is fixed on fixed frame (1), the side of movable casing (4) is provided with middle axle rotating part (6) near bottom position, both ends of middle axle rotating part (6) are rotatably connected on fixed frame (1), the side of movable casing (4) is provided with drive adjustment subassembly (7) at middle axle rotating part (6) top position, both ends of drive adjustment subassembly (7) are rotatably connected on fixed frame (1).

2. A breathable film extrusion cast die according to claim 1, wherein, The middle axle rotating part (6) includes a support rotating plate (8) and a fixed shaft (9), the support rotating plate (8) is rotatably sleeved on the middle position of the fixed shaft (9) through a bearing, one end of the support rotating plate (8) is fixed on the surface of the movable casing (4), and both ends of the fixed shaft (9) are rotatably connected on the fixed frame (1).

3. A breathable film extrusion cast die according to claim 2, wherein, The drive adjustment subassembly (7) includes two groups of arc-shaped plates (10) and an outer tooth groove (11), the outer tooth groove (11) is formed on the outer side of the two groups of arc-shaped plates (10), the two groups of arc-shaped plates (10) are fixed on the surface of the movable casing (4), and the arc centers of the two groups of arc-shaped plates (10) coincide with the fixed shaft (9).

4. A breathable film extrusion cast die according to claim 3, wherein, The drive adjustment subassembly (7) further includes a drive assembly (12), the drive assembly (12) includes a drive motor (13), a drive gear (14), a first transmission gear (15), a driving shaft (16) and a second transmission gear (17), the drive motor (13) is fixed on the inner wall of the fixed frame (1), the drive gear (14) is fixed on the output shaft of the drive motor (13), the first transmission gear (15) is fixedly sleeved on the driving shaft (16), the second transmission gear (17) is fixed on the surface of the driving shaft (16) near both ends, both ends of the driving shaft (16) are rotatably connected on the fixed frame (1), the first transmission gear (15) is engaged with the drive gear (14), and the second transmission gear (17) is engaged with the outer tooth groove (11).

5. A breathable film extrusion cast die according to claim 4, wherein, Two groups of stabilizing assemblies (18) are further arranged on the fixed frame (1) near the two groups of arc-shaped plates (10), each stabilizing assembly (18) includes a stabilizing shaft (19), a stabilizing wheel (20) and a stabilizing seat (21), the stabilizing shaft (19) is fixed on the inner wall of the fixed frame (1), the stabilizing wheel (20) is rotatably sleeved on the surface of the stabilizing shaft (19), the stabilizing seat (21) is fixed on the fixed frame (1), and the stabilizing seat (21) is arranged on the other end of the stabilizing shaft (19).

6. A breathable film extrusion cast die according to claim 5, wherein, The fixed frame (1) is provided with a locking assembly (22) at the position corresponding to the driving gear (14), the locking assembly (22) comprises an adjusting groove (23), an adjusting block (24), a pushing groove (25), a locking block (26), a longitudinal adjusting bolt (27) and a transverse adjusting bolt (28), the adjusting groove (23) is arranged on the fixed frame (1) at the position corresponding to the driving gear (14), the adjusting block (24) is movably arranged in the adjusting groove (23), the pushing groove (25) is arranged on the adjusting block (24) at the side close to the driving gear (14), the locking block (26) is movably arranged in the pushing groove (25), a transverse threaded hole (29) is arranged on the adjusting block (24) at the position corresponding to the transverse adjusting bolt (28), one end of the transverse adjusting bolt (28) is rotatably connected to the locking block (26), and the other end of the transverse adjusting bolt (28) extends to the outside of the adjusting block (24) after penetrating through the transverse threaded hole (29), a longitudinal threaded hole (30) is arranged on the fixed frame (1) at the position corresponding to the longitudinal adjusting bolt (27), one end of the longitudinal adjusting bolt (27) is rotatably connected to the adjusting block (24), and the other end of the longitudinal adjusting bolt (27) extends to the outside of the fixed frame (1) after penetrating through the longitudinal threaded hole (30).

Images