A film chip screw feeder

Abstract

The utility model relates to a kind of film scrap spiral feeding field, disclose a kind of film scrap spiral feeder, including main frame, the inside sliding connection of main frame has screen, the bottom of screen is fixedly connected with top plate, the bottom of top plate is fixedly connected with damper, damper is fixedly connected with swing rotary lever, swing rotary lever inside is rotatably connected with swing lever, swing lever inside is rotatably connected with convex sleeve rotary lever, convex sleeve rotary lever is rotatably connected with circular convex sleeve outside, circular convex sleeve is fixedly connected with driving rotary lever inside, driving rotary lever is rotatably connected with drive outside, the bottom of drive is fixedly connected with shell one, the top of shell one is fixedly connected with bottom pipe, in the utility model, add the effective interception of screen assembly stone block, metal scrap, fibre group etc., ensure that film scrap quality meets production requirement, reduce the abrasion of spiral blade, shell and other components simultaneously, reduce equipment failure rate, prolong maintenance cycle, save maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of spiral feeding of thin film chips, and more particularly to a spiral feeder for thin film chips. Background Technology

[0002] A screw feeder for film scraps consists of several key components. The drive unit uses a motor to provide power, while the transmission components are responsible for transmitting power and adjusting the speed and torque. The feeding screw is made of corrosion-resistant and wear-resistant stainless steel or 45# steel, and is mostly a conical variable-pitch structure to ensure uniform conveying of film scraps. The cylinder serves as the conveying channel and screw support, and is typically made of cylindrical stainless steel. The feed inlet and hopper of the feeding device work together to allow film scraps to enter smoothly. The discharge outlet of the discharge device is used to discharge the material, and some are also equipped with adjustment components to control the discharge speed and flow rate. The auxiliary device includes a small sleeve positioning screw for stable feeding, and a wall cleaning component to ensure the cleanliness of the inner wall of the cylinder. All these components work together to achieve efficient conveying of film scraps.

[0003] A film chip screw feeder is powered by a drive unit motor and transmission components, including an active pulley, belt, and passive pulley reducer, which regulate the speed and torque. The feeding screw is made of 18-8 stainless steel or 45# steel with a conical variable pitch structure to adapt to the characteristics of film chips. A cylindrical stainless steel cylinder serves as the conveying channel and supports the screw rotation. The feed inlet and hopper of the feeding device are used to introduce and temporarily store film chips. The discharge port of the discharge device is equipped with a valve baffle to regulate the flow rate. An auxiliary device, a small sleeve positioning screw cleaning component, cleans the inner wall of the cylinder. Its working principle is that the drive unit drives the feeding screw to rotate inside the cylinder. The conical variable pitch structure of the screw generates gradually increasing extrusion force on the film chips, pushing the film chips to move axially along the cylinder, overcoming electrostatic adsorption and wall adhesion effects. The small sleeve reduces the screw torque, and the cleaning component ensures the inner wall is clean, allowing the film chips to be discharged from the discharge port to subsequent equipment for continuous feeding.

[0004] Existing diaphragm chip screw feeders can cause multiple problems if hard impurities are mixed in during feeding. Hard impurities (such as metal shavings, sand particles, etc.) rub violently against the blades and the inner wall of the feed trough during the rotation of the screw blades, causing blade wear, deformation, or even breakage. At the same time, they accelerate scratches on the inner wall of the feed trough, reducing equipment life. Impurities stuck in the gaps between the screw blades or blocking the discharge port can cause poor material conveying or equipment shutdown, affecting production continuity. The mixture of hard impurities and diaphragm chips will aggravate internal friction, generating abnormal noise and vibration, affecting equipment stability. In addition, metal shavings generated by wear will mix into the diaphragm chips, contaminating the material and affecting the quality of subsequent processing. Frequent blockages and equipment failures will increase downtime for cleaning and maintenance costs, reducing overall production efficiency. Therefore, a diaphragm chip screw feeder is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a thin film chip screw feeder, which aims to improve the problem of hard impurities mixed into the feed material in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thin film chip screw feeder, comprising a main frame, a screen slidably connected inside the main frame, a top plate fixedly connected to the bottom of the screen, a damper fixedly connected to the bottom of the top plate, a swing rod fixedly connected to the damper, a swing arm rotatably connected inside the swing rod, a convex sleeve rod rotatably connected inside the swing arm, a circular convex sleeve rotatably connected to the outside of the convex sleeve rod, a drive rod fixedly connected inside the circular convex sleeve, a drive rotatably connected to the outside of the drive rod, a housing fixedly connected to the bottom of the drive, a bottom tube fixedly connected to the top of the housing, a sleeve slidably connected to the outside of the bottom tube, and an opening and closing assembly fixedly connected to the top of the main frame.

[0007] As a further description of the above technical solution: the opening and closing assembly includes sliding rods. Two sliding rods are slidably connected inside the main frame. A second outer shell is fixedly connected to the outside of the two sliding rods. A support rotating rod is rotatably connected inside the second outer shell. An opening and closing sliding rod is rotatably connected to the outside of the support rotating rod. An opening and closing rotating rod is rotatably connected to the bottom of the opening and closing sliding rod. A rotating rod is fixedly connected to the outside of the opening and closing rotating rod. A rotator is fixedly connected to the outside of the rotating rod.

[0008] As a further description of the above technical solution: a spring is fixedly connected inside the bottom tube, and a sleeve is fixedly connected to the top of the spring.

[0009] As a further description of the above technical solution: the inside of the screen is provided with multiple screen slots, and the right side of the drive rod is rotatably connected to the inside of the outer casing.

[0010] As a further description of the above technical solution: the external fixed connection of the support rod is an opening and closing rotating shaft, and the external fixed connection of the opening and closing rotating shaft is a cover plate.

[0011] As a further description of the above technical solution: the external sliding connection of the support rod is a support sleeve, the internal sliding connection of the support sleeve is a spring, and the external fixed connection of the spring is to the outside of the support rod.

[0012] As a further description of the above technical solution: the inner part of the outer shell 2 is fixedly connected to a groove plate, and a sliding groove is opened inside the groove plate. The outer part of the support rod is slidably connected inside the sliding groove.

[0013] As a further description of the above technical solution: the outer shell is fixedly connected to the inside of the main frame, the top of the sleeve is fixedly connected to the bottom of the top plate, the inner part of the sleeve is fixedly connected to the spring, and the outer part of the spring is fixedly connected to the bottom tube.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the vibration of the screen is achieved by a drive mechanism that works with a drive rod, a drive rod that works with a circular convex sleeve, a circular convex sleeve that works with a convex sleeve rod, a convex sleeve rod that works with a swing rod, a swing rod that works with a swing rod, a swing rod that works with a damper, a damper that works with a top plate, a top plate that works with a second spring, and a second spring that works with a first outer shell. At the same time, the use of the damper and the second spring significantly reduces vibration transmission, reduces structural damage and noise, improves equipment stability, extends service life, and optimizes screening efficiency.

[0016] 2. In this utility model, the rotating mechanism works in conjunction with a rotating rod, which in turn works with an opening / closing rotating rod, which in turn works with an opening / closing sliding rod, which in turn works with a supporting rotating rod, and the supporting rotating rod works with a sliding groove and an opening / closing rotating shaft. This enables the opening and closing of the cover plate at the feeder's inlet. Simultaneously, physical isolation significantly improves safety, prevents dust spillage and material splashing, and extends equipment lifespan. The support sleeve works in conjunction with a spring and a supporting rotating rod, which in turn works with a housing, which in turn works with a sliding rod. This effectively enables the disassembly and installation of the entire cover opening and closing device, significantly improving equipment maintenance efficiency, reducing downtime, and enhancing operational flexibility and safety, while meeting the needs of high-frequency cleaning, troubleshooting, and process adjustment. Attached Figure Description

[0017] Figure 1 This is a three-dimensional schematic diagram of a thin film chip screw feeder proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the screen of a thin film chip screw feeder proposed in this utility model;

[0019] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0020] Figure 4 This is a schematic diagram of the structure of the cover plate of a thin film chip screw feeder proposed in this utility model;

[0021] Figure 5 for Figure 4 A cross-sectional view at point B.

[0022] Legend:

[0023] 1. Main frame; 2. Screen; 3. Screen groove; 4. Top plate; 5. Sleeve; 6. Bottom tube; 7. Outer shell one; 8. Drive; 9. Drive rod; 10. Circular convex sleeve; 11. Convex sleeve rod; 12. Swing rod; 13. Swing rod; 14. Damper; 15. Sliding rod; 16. Outer shell two; 17. Sliding groove; 18. Groove plate; 19. Opening and closing shaft; 20. Opening and closing slide rod; 21. Opening and closing rod; 22. Rotating rod; 23. Rotator; 24. Support rod; 25. Support sleeve; 26. Spring one; 27. Cover plate; 28. Spring two. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 3 This utility model provides an embodiment of a film chip screw feeder, including a main frame 1. The main frame 1 is made of high-strength alloy material, providing a stable support frame for the entire feeder. The high-precision slide rail inside allows the screen 2 to slide smoothly up and down, avoiding deviation or jamming during the screening process. The screen 2 is embedded inside the main frame 1, and multiple screen grooves 3 are opened inside it. These screen grooves 3 are precisely designed according to the particle size and impurity size of the film chips, which can accurately intercept large particles of impurities such as stones and metal fragments, ensuring that the purity of the film chips entering the feeder meets the standards. The right side of the drive rod 9 is rotatably connected to the inside of the outer shell 7. This connection method uses a high-precision bearing to ensure the stability and low friction when the drive rod 9 rotates, providing a reliable power foundation for subsequent transmission.

[0026] A top plate 4 is fixedly connected to the bottom of the screen 2. The top plate 4 serves as a connecting hub, firmly connecting the screen 2 to the damper 14 below, ensuring that the screening power can be effectively transmitted. The damper 14 is fixedly connected to the bottom of the top plate 4. The damper 14 can effectively buffer the impact force transmitted by the swing rod 12, converting rigid motion into smooth and controllable elastic vibration, and preventing the screen 2 from being damaged by violent vibration. The damper 14 is fixedly connected to the swing rod 13, which provides a stable rotation fulcrum for the swing rod 12, allowing the swing rod 12 to swing up and down regularly around it. The swing rod 12 is rotatably connected inside the swing rod 13. Under the constraint of the swing rod 13, the swing rod 12 accurately converts the motion transmitted by the cam sleeve rod 11 into up and down reciprocating motion. The swing rod 12 is internally rotatably connected to the convex sleeve rotating rod 11. The connection structure between the convex sleeve rotating rod 11 and the swing rod 12 is compact and can efficiently transmit the movement of the circular convex sleeve 10. The convex sleeve 10 is externally rotatably connected to the convex sleeve rotating rod 11. The protruding part of the circular convex sleeve 10 cooperates with the convex sleeve rotating rod 11. Through rotational motion, the circumferential motion of the drive rotating rod 9 is converted into the up and down motion of the convex sleeve rotating rod 11. The drive rotating rod 9 is fixedly connected internally to the circular convex sleeve 10. The fixed connection between the two ensures the stable transmission of power, so that the circular convex sleeve 10 can rotate synchronously and stably with the drive rotating rod 9. The drive 8 is externally rotatably connected to the drive rotating rod 9. The drive 8, as a power source, can provide strong and stable power output, ensuring the continuous and stable operation of the entire screening process.

[0027] A housing 7 is fixedly connected to the bottom of the drive unit 8. The housing 7 protects and supports the drive unit 8 and drive rod 9, preventing external impurities from affecting the transmission performance. The housing 7 is externally fixedly connected to the inside of the main frame 1. This connection method forms a stable whole between the housing 7 and the main frame 1, enhancing the structural strength of the equipment. A bottom tube 6 is fixedly connected to the top of the housing 7. The bottom tube 6 provides a stable support foundation for the sleeve 5 and the spring structure. A spring 26 is fixedly connected inside the bottom tube 6. The spring 26 provides elastic support when the sleeve 5 moves, assisting in adjusting the vibration amplitude and frequency of the screen 2. The sleeve 5 is fixedly connected to the top of the spring 26, allowing the sleeve 5 to slide flexibly up and down under the action of the spring 26. The main frame 1, in conjunction with the top plate 4, vibrates the screen 2. A second spring 28 is fixedly connected inside the sleeve 5. Spring 28 works in tandem with spring 26 to further optimize the vibration effect of the screen 2. Through elastic deformation, it absorbs and releases energy, making the vibration of the screen 2 more stable and uniform. A bottom tube 6 is fixedly connected to the outside of spring 28, forming a stable elastic support structure. The sleeve 5 is slidably connected to the outside of the bottom tube 6. The high precision of the sliding fit between the two ensures that the sleeve 5 can move smoothly up and down along the bottom tube 6. The top of the sleeve 5 is fixedly connected to the bottom of the top plate 4, transmitting the elastic force of the spring structure to the top plate 4, thereby driving the screen 2 to vibrate. An opening and closing assembly is fixedly connected to the top of the main frame 1, providing convenience for equipment maintenance and repair.

[0028] Reference Figure 1 , Figure 4 , Figure 5 The opening and closing assembly includes sliding rods 15. Two sliding rods 15 are slidably connected inside the main frame 1, allowing for flexible sliding within the main frame 1 and providing space for disassembly and installation of the opening and closing assembly. A second outer shell 16 is fixedly connected to the two sliding rods 15, integrating the components of the opening and closing assembly and providing protection and support. A grooved plate 18 is fixedly connected inside the second outer shell 16, providing precise trajectory guidance for the movement of the supporting rotating rod 24. A sliding groove 17 is formed inside the grooved plate 18, with a specially designed shape to accurately convert the rotational motion of the rotator 23 into the opening and closing action of the cover plate 27, supporting the rotating rod 24. The external sliding connection of 4 is inside the sliding groove 17, and the support rod 24 can slide smoothly along the sliding groove 17 to ensure the smooth opening and closing of the cover plate 27. The support rod 24 is rotatably connected inside the outer shell 2 16. The support rod 24 can rotate flexibly inside the outer shell 2 16 and cooperate with the sliding groove 17 to achieve complex movements. The support rod 24 is externally slidably connected to the support sleeve 25. The support sleeve 25 provides stable support for the support rod 24 and allows it to slide within a certain range. The support sleeve 25 is internally slidably connected to the spring 26. The spring 26 provides a reset force when the support rod 24 slides, ensuring that the support rod 24 can return to the initial position and ensuring the stability of the opening and closing assembly.

[0029] Spring 26 is externally fixedly connected to the outside of the support rod 24, ensuring a tight fit between spring 26 and the support rod 24. An opening / closing shaft 19 is externally fixedly connected to the support rod 24. Driven by the support rod 24, the opening / closing shaft 19 rotates, thereby opening and closing the cover plate 27. The cover plate 27 is externally fixedly connected to the opening / closing shaft 19 and can rotate flexibly around it, enabling the opening and closing of the top of the equipment. An opening / closing slide rod 20 is rotatably connected to the outside of the support rod 24, transmitting the movement of the support rod 24 to the opening / closing shaft 27. 1. To ensure the continuity of movement, the bottom of the opening and closing slide rod 20 is rotatably connected to the opening and closing rotating rod 21. The opening and closing rotating rod 21 can rotate flexibly to further transmit the movement of the opening and closing slide rod 20 and drive the cover plate 27 to open and close. The external of the opening and closing rotating rod 21 is fixedly connected to the rotating rod 22. The rotating rod 22 transmits the power of the rotating device 23 to the opening and closing rotating rod 21. The external of the rotating rod 22 is fixedly connected to the rotating device 23. The rotating device 23 serves as the operating component. By rotating the rotating device 23, the operator can easily open and close the cover plate 27. The operation is simple and quick, which facilitates the daily maintenance and repair of the equipment.

[0030] Working principle: When screening is required, the drive 8 is started, which drives the drive rod 9 to rotate, causing the circular cam sleeve 10 to rotate. Because the cam sleeve rod 11 is fixedly connected to the protruding part of the circular cam sleeve 10, and the cam sleeve rod 11 is also fixedly connected to the swing rod 12, the swing rod 12 can move up and down. The swing rod 12 moves up and down on the swing rod 13, squeezing the damper 14. The damper 14 drives the top plate 4 to move up and down, thereby driving the screen 2 to move up and down. At the same time, the sleeve 5 will move with the movement of the top plate 4. The sleeve 5 squeezes and releases the spring 28, and together with the bottom tube 6, the entire screen 2 can move, intercepting stones, metal fragments, fiber clumps, etc., ensuring that the quality of the film scrap meets the production requirements. At the same time, it reduces the wear of components such as spiral blades and shell, reduces the equipment failure rate, extends the maintenance cycle, and saves maintenance costs.

[0031] When it is necessary to open the cover plate 27, the rotator 23 can be rotated to drive the rotating rod 22 to rotate, thereby causing the opening and closing rotating rod 21 to swing, and causing the supporting rotating rod 24 on the opening and closing slide rod 20 to move along the groove in the groove plate 18. The supporting rotating rod 24 drives the opening and closing rotating shaft 19 to move together, thereby realizing the opening and closing of the cover plate 27. When it is necessary to disassemble the opening and closing device, first remove the cover plate 27 from the opening and closing rotating shaft 19, and then press the two supporting rotating rods 24 inward. The two supporting rotating rods 24 slide in the support sleeve 25, compressing the spring 26, so that the connection between the sliding rod 15 on the outer shell 16 and the main frame 1 is canceled, thereby realizing quick disassembly.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A screw feeder for thin film chips, comprising a main frame (1), characterized in that: The main frame (1) is internally connected to a screen (2), the bottom of the screen (2) is fixedly connected to a top plate (4), the bottom of the top plate (4) is fixedly connected to a damper (14), the damper (14) is fixedly connected to a swing rod (13), the swing rod (13) is internally connected to a swing rod (12), the swing rod (12) is internally connected to a convex sleeve rod (11), the convex sleeve rod (11) is externally connected to a circular convex sleeve (10), the circular convex sleeve (10) is internally fixedly connected to a drive rod (9), the drive rod (9) is externally connected to a drive (8), the bottom of the drive (8) is fixedly connected to a housing (7), the top of the housing (7) is fixedly connected to a bottom tube (6), the bottom tube (6) is externally slidably connected to a sleeve (5), and the top of the main frame (1) is fixedly connected to an opening and closing assembly.

2. The screw feeder for thin film chips according to claim 1, characterized in that: The opening and closing assembly includes a sliding rod (15). Two sliding rods (15) are slidably connected inside the main frame (1). A second outer shell (16) is fixedly connected to the outside of the two sliding rods (15). A support rotating rod (24) is rotatably connected inside the second outer shell (16). An opening and closing slide rod (20) is rotatably connected to the outside of the support rotating rod (24). An opening and closing rotating rod (21) is rotatably connected to the bottom of the opening and closing slide rod (20). A rotating rod (22) is fixedly connected to the outside of the opening and closing rotating rod (21). A rotator (23) is fixedly connected to the outside of the rotating rod (22).

3. A screw feeder for thin film chips according to claim 1, characterized in that: A spring (26) is fixedly connected inside the bottom tube (6), and a sleeve (5) is fixedly connected to the top of the spring (26).

4. A screw feeder for thin film chips according to claim 1, characterized in that: The screen (2) has multiple screen slots (3) inside, and the right side of the drive rod (9) is rotatably connected to the inside of the outer shell (7).

5. A screw feeder for thin film chips according to claim 2, characterized in that: The support rod (24) is externally fixedly connected to an opening and closing shaft (19), and the opening and closing shaft (19) is externally fixedly connected to a cover plate (27).

6. A screw feeder for thin film chips according to claim 2, characterized in that: The support rod (24) is slidably connected to the outside of a support sleeve (25), and a spring (26) is slidably connected inside the support sleeve (25). The spring (26) is fixedly connected to the outside of the support rod (24).

7. A screw feeder for thin film chips according to claim 2, characterized in that: The inner part of the outer shell (16) is fixedly connected to a groove plate (18), and a sliding groove (17) is opened inside the groove plate (18). The outer part of the support rotating rod (24) is slidably connected to the inside of the sliding groove (17).

8. A screw feeder for thin film chips according to claim 1, characterized in that: The outer shell (7) is fixedly connected to the inside of the main frame (1), the top of the sleeve (5) is fixedly connected to the bottom of the top plate (4), the inside of the sleeve (5) is fixedly connected to the second spring (28), and the outside of the second spring (28) is fixedly connected to the bottom tube (6).

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