A multi-layer co-extrusion casting machine
By designing detachable and adjustable stretching and co-extrusion components, the problem of fixed number of stretching rollers in multi-layer co-extrusion casting machines was solved, enabling flexible adjustment of the number of film layers and improving equipment stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINJIANG NUOTE NEW MATERIAL TECH CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-07-14
Smart Images

Figure CN224489792U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting machine technology, and in particular to a multi-layer co-extrusion casting machine. Background Technology
[0002] A casting machine is a specialized piece of equipment used to produce cast films. High-precision electronic ceramic casting machines utilize alumina as the main raw material for ceramic casting. First, pulverized powder is mixed with binders, plasticizers, dispersants, and solvents to create a slurry of a certain viscosity. The slurry flows from a hopper and is scraped and pressed onto a special base belt at a certain thickness by a doctor blade. After drying and curing, it is peeled off to form a green film. Then, according to the required size and shape of the finished product, the green film undergoes punching, lamination, and other processing to produce a finished blank ready for sintering. This method has advantages such as low cost, high quality, non-toxicity, and simple production process.
[0003] There are various types of casting machines, including multi-layer co-extrusion casting machines. Currently, multi-layer co-extrusion casting machines on the market typically extrude multiple layers of film together. However, in actual use, there are still some drawbacks, such as the fact that the number of stretching rollers is usually fixed. This means that the number of co-extruded layers is fixed, and it is impossible to increase or decrease the number of stretching rollers based on the existing number. Utility Model Content
[0004] To overcome the technical defects of the existing technology, this utility model provides a multi-layer co-extrusion casting machine.
[0005] The technical solution adopted by this utility model is as follows: it includes a chassis, an extruder is fixedly installed on the top of the chassis near the right side, a molding machine is arranged on the left side of the extruder, an extension component is arranged on the left side of the molding machine, a co-extrusion component is arranged on the left side of the extension component, the co-extrusion component, the extension component and the molding machine are all fixedly installed on the top of the chassis, and multiple doors are movably installed on the front side of the chassis, and handles are fixedly installed on the outer walls of the multiple doors.
[0006] Preferably, the extension component includes multiple extension rollers, each of which is rotatably connected to a locking block at both ends. Each of the locking blocks is fixedly connected to a connecting block at its top. Each of the two connecting blocks has a second locking groove on one side opposite to the other, and the locking block is inserted into the inner cavity of the corresponding second locking groove.
[0007] In order to pull and stretch the film to be processed, and to assemble an appropriate number of stretching rollers according to the number of film layers for subsequent operations.
[0008] Preferably, a bottom shell is fixedly installed on the top of the chassis, and a slot is provided on both sides of the inner wall of the bottom shell. The two bottom blocks are respectively inserted into the inner cavity of the slot at the corresponding position.
[0009] To enable installation on the top of the chassis and improve the stability of the extension operation.
[0010] Preferably, two fixing bolts are threadedly connected to the outer wall of the bottom shell and the outer wall of the connecting block, and multiple fixing bolts are threadedly connected to multiple locking blocks respectively.
[0011] In order to achieve a fixed assembly of the entire device and ensure the stability of subsequent operations.
[0012] Preferably, the co-extrusion assembly includes a U-shaped frame, which is fixedly installed on the top of the machine housing. A motor is fixedly installed on the top of the U-shaped frame, and a screw is fixedly connected to the bottom of the motor. The bottom end of the screw passes through the top of the U-shaped frame and is rotatably connected to the top of the U-shaped frame. A threaded sleeve is threadedly connected to the outer wall of the screw. Two movable plates are fixedly installed on the outer wall of the threaded sleeve. The two movable plates are movably connected to the inner wall of the U-shaped frame on opposite sides. A vertical plate is fixedly connected to the bottom of each of the two movable plates. An extrusion roller is rotatably connected between the two vertical plates. A fixed roller is provided at the bottom of the extrusion roller and is rotatably connected to the inner wall of the U-shaped frame.
[0013] To co-extrude multilayer films, the distance between the stationary roller and the extrusion roller can be adjusted according to the number of film layers to be co-extruded, making the operation convenient.
[0014] Preferably, a stop is fixedly installed at the bottom end of the screw.
[0015] To prevent the screw from detaching from the threaded sleeve, which could cause malfunctions in the overall device.
[0016] Preferably, each of the two movable plates is fixedly connected to a vertical block on the side furthest from each other, and two vertical grooves are opened on the outer wall of the U-shaped frame, with the vertical blocks slidably connected to the inner cavity of the corresponding vertical grooves.
[0017] In order to limit the stability of the vertical movement trajectory of components such as the extrusion rollers and improve their stability performance.
[0018] Preferably, four bases are fixedly installed at the bottom of the chassis, and the four bases are respectively located at the four corners of the bottom of the chassis.
[0019] In order to support the overall device and ensure its stable performance during operation.
[0020] The beneficial effects of this utility model are as follows: By setting an extension component, the film after molding is extended by the extension roller on the extension component and fed into the co-extrusion component for extrusion. When it is necessary to add extension rollers according to the number of films, two locking blocks can be aligned and inserted into the second locking slot on the connecting block, and then fixed with fixing bolts. The operation is convenient and the appropriate number of extension rollers can be selected according to the actual situation. By setting a screw, the distance between the fixed roller and the extrusion roller can be adjusted in the later stage, which is suitable for co-extrusion of different numbers of films. At this time, it is only necessary to drive the motor so that the motor drives the screw to rotate, the screw drives the threaded sleeve to move, the threaded sleeve drives the movable plate to move, and the movable plate drives the extrusion roller on the vertical plate to move. The operation is convenient. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the external structure of this utility model.
[0022] Figure 2 This is a schematic diagram of the structure of the extension component of this utility model.
[0023] Figure 3 An exploded view of the extension component of this utility model.
[0024] Figure 4 This is a schematic diagram of the co-extruded component of this utility model.
[0025] Figure 5 This is a partial structural diagram of the co-extruded component of this utility model.
[0026] Explanation of reference numerals in the attached drawings: 1. Chassis; 11. Door; 12. Handle; 2. Base; 3. Extruder; 4. Molding machine; 5. Extension assembly; 51. Bottom shell; 52. Slot 1; 53. Block; 54. Connecting block; 55. Extension roller; 56. Slot 2; 57. Fixing bolt; 6. Co-extrusion assembly; 61. U-shaped frame; 62. Fixing roller; 63. Vertical groove; 64. Motor; 65. Screw; 66. Stop block; 67. Threaded sleeve; 68. Movable plate; 69. Vertical block; 610. Vertical plate; 611. Extrusion roller. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings:
[0028] As shown in the figure, this embodiment provides a multi-layer co-extrusion casting machine, including a casing 1. An extruder 3 is fixedly installed on the top of the casing 1 near the right side. A forming machine 4 is arranged on the left side of the extruder 3. An extension component 5 is arranged on the left side of the forming machine 4. A co-extrusion component 6 is arranged on the left side of the extension component 5. The co-extrusion component 6, the extension component 5 and the forming machine 4 are all fixedly installed on the top of the casing 1. Multiple doors 11 are movably installed on the front side of the casing 1. Handles 12 are fixedly installed on the outer walls of the multiple doors 11.
[0029] In this embodiment, during use, the film is formed by extruder 3 and then enters molding machine 4. Under the stretching effect of stretching component 5, the film is pulled and stretched into co-extrusion component 6, where it is extruded again. After extrusion, the film is wound up by external winding device. Subsequently, the door 11 can be opened by handle 12 to inspect the electronic components inside the casing 1.
[0030] As an optional implementation, the extension component 5 includes multiple extension rollers 55, each of which is rotatably connected to a locking block 53 at both ends. Each of the locking blocks 53 is fixedly connected to a connecting block 54 at its top. Each of the two connecting blocks 54 has a second locking groove 56 on one side opposite to the other, and the locking block 53 is inserted into the inner cavity of the corresponding second locking groove 56.
[0031] In this embodiment, during use, the card block 53 is inserted into the card slot 56 on the connecting block 54 to splice multiple stretching rollers 55. Furthermore, the corresponding number of stretching rollers 55 can be selected for splicing according to the actual number of film layers, thereby improving the effectiveness of the device.
[0032] As an optional implementation, a bottom shell 51 is fixedly installed on the top of the chassis 1. The bottom shell 51 has slots 52 on both sides of its inner wall, and two bottom blocks 53 are respectively inserted into the inner cavity of the slots 52 at the corresponding positions.
[0033] In this embodiment, the two lowest card blocks 53 are embedded into the card slots 52 in the bottom shell 51 to realize the splicing between the multiple extension rollers 55 and the bottom shell 51, and further realize the installation of the extension component 5 and the top of the chassis 1.
[0034] As an optional implementation, two fixing bolts 57 are threadedly connected to the outer wall of the bottom shell 51 and the outer wall of the connecting block 54, and multiple fixing bolts 57 are threadedly connected to multiple locking blocks 53 respectively.
[0035] In this embodiment, during use, multiple fixing bolts 57 are used to fix the locking block 53 to the bottom shell 51, and can also fix the locking block 53 to the connecting block 54, thus completing the splicing and fixing of the overall device.
[0036] As an optional implementation, the co-extrusion assembly 6 includes a U-shaped frame 61, which is fixedly installed on the top of the housing 1. A motor 64 is fixedly installed on the top of the U-shaped frame 61, and a screw 65 is fixedly connected to the bottom of the motor 64. The bottom end of the screw 65 passes through the top of the U-shaped frame 61 and is rotatably connected to the top of the U-shaped frame 61. A threaded sleeve 67 is threadedly connected to the outer wall of the screw 65. Two movable plates 68 are fixedly installed on the outer wall of the threaded sleeve 67. The two movable plates 68 are movably connected to the inner wall of the U-shaped frame 61 on opposite sides. A vertical plate 610 is fixedly connected to the bottom of each of the two movable plates 68. An extrusion roller 611 is rotatably connected between the two vertical plates 610. A fixed roller 62 is provided at the bottom of the extrusion roller 611 and is rotatably connected to the inner wall of the U-shaped frame 61.
[0037] In this embodiment, during use, the distance between the fixed roller 62 and the extrusion roller 611 is first adjusted according to the number of film layers to be co-extruded. At this time, the motor 64 needs to be driven so that the motor 64 drives the screw 65 to rotate. The screw 65 drives the threaded sleeve 67 to move vertically. The threaded sleeve 67 drives the two movable plates 68 to move synchronously. The two movable plates 68 drive the vertical plates 610 to move respectively. The two vertical plates 610 together drive the extrusion roller 611 to move. After the extrusion roller 611 moves to the appropriate position, the motor 64 is turned off. Subsequently, co-extrusion is achieved by using the extrusion roller 611 and the fixed roller 62, which is convenient to operate.
[0038] As an optional implementation, a stop 66 is fixedly installed at the bottom end of the screw 65.
[0039] In this embodiment, the use of the stop 66 effectively prevents the threaded sleeve 67 from detaching from the screw 65.
[0040] As an optional implementation, two movable plates 68 are fixedly connected to vertical blocks 69 on opposite sides, and two vertical grooves 63 are opened on the outer wall of the U-shaped frame 61, with the vertical blocks 69 slidably connected to the inner cavity of the corresponding vertical grooves 63.
[0041] In this embodiment, during use, the movable plate 68 will drive the vertical block 69 to move vertically inside the vertical groove 63, thereby limiting the vertical movement trajectory of the movable plate 68 and even the extrusion roller 611 and improving stability.
[0042] As an optional implementation, four bases 2 are fixedly installed at the bottom of the chassis 1, and the four bases 2 are located at the bottom of the chassis 1 near the four corners.
[0043] In this embodiment, the four bases 2 are used to provide support for the overall device and improve its stability.
[0044] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.
Claims
1. A multi-layer co-extrusion casting machine, comprising a casing (1), characterized in that: An extruder (3) is fixedly installed on the top of the machine housing (1) near the right side. A molding machine (4) is arranged on the left side of the extruder (3). An extension component (5) is arranged on the left side of the molding machine (4). A co-extrusion component (6) is arranged on the left side of the extension component (5). The co-extrusion component (6), the extension component (5) and the molding machine (4) are all fixedly installed on the top of the machine housing (1). Multiple doors (11) are movably installed on the front side of the machine housing (1). Handles (12) are fixedly installed on the outer walls of the multiple doors (11). The extension component (5) includes multiple extension rollers (55). Both ends of the multiple extension rollers (55) are rotatably connected to a locking block (53). A connecting block (54) is fixedly connected to the top of the multiple locking blocks (53). A second slot (56) is opened on the opposite side of the two connecting blocks (54). The locking block (53) is inserted into the inner cavity of the corresponding second slot (56).
2. The multi-layer co-extrusion casting machine according to claim 1, characterized in that: The chassis (1) is fixedly installed with a bottom shell (51) on the top. The bottom shell (51) has slots (52) on both sides of its inner wall. The two bottom blocks (53) are respectively inserted into the inner cavity of the slots (52) at the corresponding positions.
3. A multi-layer co-extrusion casting machine according to claim 2, characterized in that: The outer wall of the bottom shell (51) and the outer wall of the connecting block (54) are each threaded with two fixing bolts (57), and the multiple fixing bolts (57) are respectively threaded onto multiple locking blocks (53).
4. A multi-layer co-extrusion casting machine according to claim 1, characterized in that: The co-extrusion assembly (6) includes a spiral frame (61), which is fixedly installed on the top of the housing (1). A motor (64) is fixedly installed on the top of the spiral frame (61), and a screw (65) is fixedly connected to the bottom of the motor (64). The bottom end of the screw (65) passes through the top of the spiral frame (61) and is rotatably connected to the top of the spiral frame (61). A threaded sleeve (67) is threadedly connected to the outer wall of the screw (65). Two movable plates (68) are fixedly installed on the outer wall of the threaded sleeve (67). The two movable plates (68) are movably connected to the inner wall of the spiral frame (61) on opposite sides. A vertical plate (610) is fixedly connected to the bottom of each of the two movable plates (68). An extrusion roller (611) is rotatably connected between the two vertical plates (610). A fixed roller (62) is provided at the bottom of the extrusion roller (611). The fixed roller (62) is rotatably connected to the inner wall of the spiral frame (61).
5. A multi-layer co-extrusion casting machine according to claim 4, characterized in that: A stop (66) is fixedly installed at the bottom end of the screw (65).
6. A multi-layer co-extrusion casting machine according to claim 5, characterized in that: Two movable plates (68) are fixedly connected to vertical blocks (69) on opposite sides. Two vertical grooves (63) are opened on the outer wall of the spiral frame (61), and the vertical blocks (69) are slidably connected to the inner cavity of the corresponding vertical grooves (63).
7. A multi-layer co-extrusion casting machine according to claim 1, characterized in that: The bottom of the chassis (1) is fixedly equipped with four bases (2), and the four bases (2) are located at the bottom of the chassis (1) near the four corners.