Filtering structure of casting machine for processing filtering membrane
By using a motor-driven lead screw and slide structure, combined with toothed rollers and brush rods, the viscous impurities on the casting machine filter screen are automatically cleaned, solving the problem of easy clogging of the filter screen and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU HAOJIA NEW MATERIAL TECHNOLOGY CO LTD
- Filing Date
- 2025-02-28
- Publication Date
- 2026-05-19
AI Technical Summary
The filter screen in existing casting machines is easily clogged by viscous melt, affecting the filtration effect, and there is a lack of effective cleaning solutions.
The system employs a motor-driven lead screw and slide structure, along with toothed rollers and brush rods, to automatically clean impurities from the filter screen and collect the cleaned impurities through a recycling box.
It effectively cleans viscous impurities on the filter screen, prevents clogging, and improves the working efficiency and production convenience of the casting machine.
Smart Images

Figure CN224252195U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of casting machine technology, and in particular to a filtration structure for a casting machine used to process filter membranes. Background Technology
[0002] A casting machine is a device for producing cast films, widely used in packaging, printing, and plastics industries. In casting machines that process filter films, the filtration structure plays a crucial role, ensuring the purity of the melt and preventing impurities from affecting product quality. Publication number CN221867599U discloses a silicon nitride casting machine filter that is easy to disassemble and assemble, including a housing and a box embedded within the housing. A filter screen is disposed within the box. The housing has an insertion block with insertion holes. The box has a fixing mechanism, including a slot on the box corresponding to the insertion holes. A movable pull rod is disposed within the slot, with a stop block on the pull rod. A spring is sleeved on the pull rod within the slot, the spring abutting against the stop block. A pull ring is disposed at the top of the pull rod outside the slot. When the housing needs to be disassembled, simply pull both sets of pull rings outwards simultaneously to pull the front end of the pull rod out of the insertion hole of the insert block, and then lift the housing upwards through the pull rings to remove the housing from the shell. This achieves quick disassembly and avoids the problem of needing to remove multiple sets of bolts first in the traditional disassembly method, greatly improving the convenience of disassembly and the work efficiency during production. However, in actual filtration, the filter screen is easily clogged due to the high viscosity of the melt, which affects the normal use of the casting machine. The device does not offer an effective solution to this problem and needs to be improved. Utility Model Content
[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.
[0004] This utility model adopts the following technical solution: a filter structure for a casting machine for processing filter membranes, including a shell, a first motor fixedly connected to the inner surface of the shell, a second motor fixedly connected to the inner surface of the shell, a first lead screw rotatably connected to the inner surface of the shell, a second lead screw rotatably connected to the inner surface of the shell, a first slide table slidably connected to the inner surface of the shell, a second slide table slidably connected to the inner surface of the shell, a toothed rod rotatably connected to the side of the first slide table, a first pulley rotatably connected to the other end of the toothed rod, a brush rod rotatably connected to the side of the second slide table, a gear fixedly connected to the other end of the brush rod, a second pulley rotatably connected to the side of the gear, a rack fixedly connected to the inner surface of the shell, a filter screen fixedly connected to the inside of the shell, and a cover slidably connected to the inside of the shell.
[0005] Preferably, the output end of the first motor is fixedly connected to the first lead screw, and the output end of the second motor is fixedly connected to the second lead screw. This allows the first motor and the second motor to drive the first lead screw and the second lead screw to rotate, respectively.
[0006] Preferably, the surface of the first lead screw is threaded to the surface of the first slide, and the surface of the second lead screw is threaded to the surface of the second slide. This allows the first and second lead screws to rotate while simultaneously driving the first and second slides to slide under the constraint of the housing.
[0007] Preferably, the surfaces of the first and second pulleys are in a rolling connection with the housing. This allows the first and second pulleys to slide on the housing.
[0008] Preferably, the surface of the gear meshes with the rack, and the tooth surface of the rack corresponds to the holes in the filter screen. Here, the gear rotates under the constraint of the rack, and the tooth surface on the rack can push impurities out of the filter screen holes.
[0009] Preferably, a recycling bin is slidably connected to the inner bottom surface of the outer casing, a slot is provided on the inner wall of the outer casing, a pressing rod is slidably connected to the inside of the recycling bin, an insert block is slidably connected to the inside of the recycling bin, and a spring is fixedly connected to the inside of the recycling bin. This allows the recycling bin to slide on the outer casing.
[0010] Preferably, the surface of the pressing rod is fixedly connected to the insert block, the other end of the spring is fixedly connected to the insert block, and the surface of the insert block is slidably connected to the slot. This allows the pressing rod to move the insert block, and the spring to return the insert block to its original position.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, the outer shell, first motor, second motor, first slide table, second slide table, first lead screw, second lead screw, toothed roller, first pulley, brush rod, gear, rack and second pulley enable the sticky impurities on the filter screen to be pushed out by the toothed roller, and then brushed off by the brush rod, thereby achieving the effect of cleaning the impurities on the filter screen.
[0013] 2. In this utility model, the impurities cleaned by the brush rod and toothed roller can be collected and processed through the recycling box, which prevents them from accumulating. Attached Figure Description
[0014] Figure 1 A schematic diagram of the filter structure of a casting machine for processing filter membranes is provided for this utility model;
[0015] Figure 2 This utility model provides a schematic diagram of the internal structure of the filter structure of a casting machine for processing filter membranes.
[0016] Figure 3 This utility model proposes a filtration structure for a casting machine used to process filter membranes. Figure 2 Enlarged view of point A in the middle;
[0017] Figure 4 This utility model proposes a filtration structure for a casting machine used to process filter membranes. Figure 2 Enlarged view at point B in the middle;
[0018] Figure 5 This utility model provides a schematic diagram of a partially open cover for the filter structure of a casting machine used for processing filter membranes.
[0019] Figure 6 This utility model proposes a cross-sectional view of the recovery box of the filter structure of a casting machine for processing filter membranes.
[0020] Legend:
[0021] 1. Outer casing; 2. First motor; 3. Second motor; 4. First slide; 5. Second slide; 6. First lead screw; 7. Second lead screw; 8. Gear roller; 9. First pulley; 10. Brush rod; 11. Gear; 12. Rack; 13. Second pulley; 14. Filter screen; 15. Cover; 16. Recycling box; 17. Slot; 18. Pressing rod; 19. Insert block; 20. Spring. Detailed Implementation
[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0024] Example 1
[0025] Please see Figure 1-2This utility model provides a technical solution: a filter structure for a casting machine for processing filter membranes, including a housing 1, a first motor 2 fixedly connected to the inner surface of the housing 1, a second motor 3 fixedly connected to the inner surface of the housing 1, so that the first motor 2 and the second motor 3 can be fixedly placed inside the housing 1, a first lead screw 6 rotatably connected to the inner surface of the housing 1, a second lead screw 7 rotatably connected to the inner surface of the housing 1, so that the first lead screw 6 and the second lead screw 7 can rotate on the housing 1, and a first slide table 4 slidably connected to the inner surface of the housing 1. A second slide 5 is slidably connected to the inner surface of the shell 1, allowing the first slide 4 and the second slide 5 to slide on the shell 1. A toothed rod 8 is rotatably connected to the side of the first slide 4, and a first pulley 9 is rotatably connected to the other end of the toothed rod 8, allowing the first pulley 9 to move with the toothed rod 8. A brush rod 10 is rotatably connected to the side of the second slide 5, and a gear 11 is fixedly connected to the other end of the brush rod 10. A second pulley 13 is rotatably connected to the side of the gear 11, allowing the second pulley 13 to move with the brush rod 10. A toothed rod 10 is fixedly connected to the inner surface of the shell 1. Item 12, a filter screen 14 is fixedly connected inside the outer casing 1, allowing the filter to be filtered. A cover 15 is slidably connected inside the outer casing 1, allowing the cover 15 to control the opening and closing state of the outer casing 1. The output end of the first motor 2 is fixedly connected to the first lead screw 6, and the output end of the second motor 3 is fixedly connected to the second lead screw 7, so that the first motor 2 and the second motor 3 can drive the first lead screw 6 and the second lead screw 7 to rotate respectively. The surface of the first lead screw 6 is threadedly connected to the first slide table 4, and the surface of the second lead screw 7 is threadedly connected to the second slide table 4. The screws 5 are threaded together, so that when the first lead screw 6 and the second lead screw 7 rotate, they can drive the first slide table 4 and the second slide table 5 to slide under the constraint of the outer shell 1. The surfaces of the first pulley 9 and the second pulley 13 are rolled together with the outer shell 1, so that the first pulley 9 and the second pulley 13 can slide on the outer shell 1. The surface of the gear 11 meshes with the rack 12. The tooth surface of the toothed roller 8 corresponds to the hole of the filter screen 14, so that the gear 11 rotates under the constraint of the rack 12. The tooth surface on the toothed roller 8 can push out the impurities on the hole of the filter screen 14.
[0026] Example 2
[0027] Please see Figure 4 A recycling box 16 is slidably connected to the inner bottom surface of the outer casing 1. A slot 17 is provided on the inner wall of the outer casing 1. A pressing rod 18 is slidably connected to the inside of the recycling box 16. An insert block 19 is slidably connected to the inside of the recycling box 16. A spring 20 is fixedly connected to the inside of the recycling box 16, allowing the recycling box 16 to slide on the outer casing 1. The surface of the pressing rod 18 is fixedly connected to the insert block 19. The other end of the spring 20 is fixedly connected to the insert block 19. The surface of the insert block 19 is slidably connected to the slot 17, allowing the pressing rod 18 to move the insert block 19. The spring 20 can reset the insert block 19.
[0028] Working principle: When the filter screen 14 is clogged, the cover 15 is slid to one side to open the outer casing 1, activating the first motor 2 and the second motor 3. The first motor 2 drives the first lead screw 6 to rotate, causing the first slide 4 to slide under the constraint of the first lead screw 6 and the outer casing 1. The second motor 3 drives the second lead screw 7 to rotate, causing the second slide 5 to slide under the constraint of the second lead screw 7 and the outer casing 1. The sliding of the first slide 4 causes the toothed roller 8 to move downwards, and the toothed surface of the toothed roller 8 inserts into the holes of the filter screen 14, thereby pushing out the impurities on the filter screen 14. Meanwhile, the second slide 5 drives the brush rod 10 to move, and the second pulley 13 on the gear 11 constrains the gear 11 to the surface of the rack 12, thereby causing the gear 11 to move downwards. Constrained by the rack 12, the brush rod 10 rotates, thereby removing the impurities pushed out by the toothed roller 8 and on the filter screen 14. The recycling box 16 is inserted into the outer shell 1. Under the constraint of the outer shell 1, the insert block 19 drives the spring 20 to slide inward until the insert block 19 reaches the upper end of the slot 17. After losing the constraint of the outer shell 1, the insert block 19 slides into the slot 17 under the action of the spring 20, thereby fixing the recycling box 16 to the outer shell 1. At this time, the cleaned impurities can be collected and recycled in the recycling box 16. After cleaning, squeeze the pressing rod 18. The pressing rod 18 drives the insert block 19 away from the slot 17, and the recycling box 16 can be removed. Move the cover 15 to close the outer shell 1, thus completing the cleaning work.
[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A filter structure for a casting machine for processing filter membranes, comprising a housing (1), characterized in that: The inner surface of the outer shell (1) is fixedly connected to a first motor (2), the inner surface of the outer shell (1) is fixedly connected to a second motor (3), the inner surface of the outer shell (1) is rotatably connected to a first lead screw (6), the inner surface of the outer shell (1) is rotatably connected to a second lead screw (7), the inner surface of the outer shell (1) is slidably connected to a first slide (4), the inner surface of the outer shell (1) is slidably connected to a second slide (5), the side of the first slide (4) is rotatably connected to a toothed rod (8), the other end of the toothed rod (8) is rotatably connected to a first pulley (9), the side of the second slide (5) is rotatably connected to a brush rod (10), the other end of the brush rod (10) is fixedly connected to a gear (11), the side of the gear (11) is rotatably connected to a second pulley (13), the inner surface of the outer shell (1) is fixedly connected to a rack (12), the inside of the outer shell (1) is fixedly connected to a filter screen (14), and the inside of the outer shell (1) is slidably connected to a cover (15).
2. The filtration structure of the casting machine for processing filter membranes according to claim 1, characterized in that: The output end of the first motor (2) is fixedly connected to the first lead screw (6), and the output end of the second motor (3) is fixedly connected to the second lead screw (7).
3. The filtration structure of the casting machine for processing filter membranes according to claim 1, characterized in that: The surface of the first lead screw (6) is threadedly connected to the first slide (4), and the surface of the second lead screw (7) is threadedly connected to the second slide (5).
4. The filtration structure of the casting machine for processing filter membranes according to claim 1, characterized in that: The surfaces of the first pulley (9) and the second pulley (13) are in rolling connection with the outer shell (1).
5. The filtration structure of the casting machine for processing filter membranes according to claim 1, characterized in that: The surface of the gear (11) meshes with the rack (12), and the tooth surface of the toothed rod (8) corresponds to the hole of the filter screen (14).
6. The filtration structure of the casting machine for processing filter membranes according to claim 1, characterized in that: A recycling box (16) is slidably connected to the inner bottom surface of the outer shell (1). A slot (17) is provided on the inner wall of the outer shell (1). A pressing rod (18) is slidably connected to the inside of the recycling box (16). An insert block (19) is slidably connected to the inside of the recycling box (16). A spring (20) is fixedly connected to the inside of the recycling box (16).
7. The filtration structure of the casting machine for processing filter membranes according to claim 6, characterized in that: The surface of the pressing rod (18) is fixedly connected to the insert (19), the other end of the spring (20) is fixedly connected to the insert (19), and the surface of the insert (19) is slidably connected to the slot (17).