Double-screw extruder convenient to lift
By installing multiple bases and universal wheels on the bottom of the twin-screw extruder, and using the synchronous driving screw drive mechanism to achieve height adjustment, the problems of height adjustment and movement convenience of the twin-screw extruder are solved, and adaptability and Operating efficiency and extend the service life of the equipment.
Patent Information
- Application Number
- CN202420054853.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-10
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-01-10
AI Technical Summary
The existing twin-screw extruder lacks height adjustment function and movement convenience, resulting in limited use effect at different sites or when using different personnel, and difficulty in transportation and movement after fixing.
By installing multiple bases and universal wheels on the bottom surface of the twin-screw extruder, the synchronous driving screw drive mechanism can be used to extend and retract the universal wheel, realize height adjustment, and retract the universal wheel when not in use Sealed for extended service life.
The flexible adjustment of the height of the twin-screw extruder and the ease of movement are achieved, greatly increasing adaptability and operating efficiency, while protecting the equipment to extend the service life.
Smart Images
Figure CN222271199U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of twin-screw extruders, in particular to a twin-screw extruder which is convenient for lifting. Background Art
[0002] The twin-screw extruder is developed on the basis of the single-screw extruder. Due to its good feeding performance, mixing and plasticizing performance, exhaust performance, extrusion stability and other characteristics, it has been widely used in the molding processing of extruded products.
[0003] However, the current twin-screw extruder has a simple structure and lacks the function of adjusting the upper and lower heights. When it is used in different places or by different staff, the uniform height will affect the use effect. At the same time, the current twin-screw extruder is not easy to move. Once the position is fixed, the subsequent transportation and movement will be more troublesome, affecting the adaptability. Utility Model Content
[0004] The technical problem to be solved by the utility model is to provide a twin-screw extruder which is easy to lift and lower. The height can be adjusted while moving by extending and retracting universal wheels, thus solving the problems mentioned in the background technology.
[0005] The utility model is realized through the following technical scheme: a twin-screw extruder which is easy to lift, comprising a twin-screw extruder, a plurality of bases are installed on the bottom surface of the twin-screw extruder, a mounting groove with a lower end opening is formed inside the base, a plurality of universal wheels are arranged in the mounting groove, an adjustment seat is installed on the bracket of the universal wheel, the adjustment seats are arranged relatively, a screw hole is arranged at the center of the adjustment seat, a first sealed bearing is embedded and installed at the top surface of the mounting groove facing the screw hole, a screw is installed in the inner ring of the first sealed bearing, the lower end of the screw is threadedly connected to the corresponding screw hole, and a driving mechanism for synchronously driving the screw to rotate is installed between the bases.
[0006] As an effective technical solution, the driving mechanism includes a motor, multiple first worms, multiple second worms and multiple first worm wheels and second worm wheels. The first worm wheels are all installed on the lead screw, the first worms are all arranged inside the mounting groove and are meshed with the first worm wheels, the second worm wheels are all installed in the middle of the first worms, and the second worms are all arranged below the second worm wheels and are meshed with the second worm wheels.
[0007] As an effective technical solution, shaft holes are provided on the opposite surfaces of the base, mounting holes are provided on the opposite surfaces of the base, second sealed bearings are installed in the mounting holes, a shaft rod is provided between the bases, both ends of the shaft rod pass through the shaft holes and are fixedly connected to the second worm, one end of the second worm gear away from the shaft rod is installed in the inner ring of the second bearing, the motor is installed on the base on one side, and the rotating shaft of the motor is fixedly connected to the second worm gear on one side.
[0008] As an effective technical solution, third sealed bearings are embedded at both ends of the mounting groove in the width direction, a rear rotating shaft is installed in the inner ring of the third sealed bearing, and the opposite ends of the rotating shaft are fixedly connected to the end face of the first worm.
[0009] As an effective technical solution, the middle of the installation groove is recessed to form an avoidance groove, and the upper half of the second worm gear extends into the avoidance groove.
[0010] As an effective technical solution, the bottom surface of the universal wheel does not protrude from the bottom surface of the base.
[0011] As an effective technical solution, the side surfaces of the adjusting block are in contact with the inner side surfaces of the mounting groove.
[0012] The beneficial effects of the utility model are as follows: the utility model has a simple structure, and can synchronously drive the rotation of four screw rods through the driving mechanism, and can synchronously drive the movement of the universal wheel through the synchronously rotating screw rods, and can adjust the height of the universal wheel while realizing the movement through the extended and retracted universal wheel, which greatly increases the adaptability, and when not in use, the universal wheel can be retracted into the inside of the installation groove and sealed to ensure its service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 It is a bottom view of the utility model;
[0016] Figure 3 It is a schematic diagram of the structure inside the base on one side of the utility model.
[0017] Among them, 1. twin-screw extruder; 2. base; 3. motor; 4. universal wheel; 5. adjustment seat; 6. screw; 7. avoidance groove; 8. first worm; 9. shaft; 11. second worm; 12. second sealed bearing; 13. second worm wheel; 14. first sealed bearing; 15. first worm wheel; 16. rotating shaft. DETAILED DESCRIPTION
[0018] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0019] All features disclosed in this specification, or steps in all methods or processes disclosed, except mutually exclusive features and / or steps, can be combined in any manner.
[0020] Any feature disclosed in this specification (including any additional claims, abstract and drawings), unless otherwise stated, may be replaced by other equivalent or alternative features with similar purposes. That is, unless otherwise stated, each feature is only an example of a series of equivalent or similar features.
[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a twin-screw extruder that is easy to lift, including a twin-screw extruder 1, a plurality of bases 2 are installed on the bottom surface of the twin-screw extruder 1, and mounting grooves with lower openings are formed inside the bases 2, and a plurality of universal wheels 4 are arranged in the mounting grooves, and adjustment seats 5 are installed on the brackets of the universal wheels 4, and the adjustment seats 5 are arranged relatively, and screw holes are arranged at the centers of the adjustment seats 5, and first sealed bearings 14 are embeddedly installed at the top surfaces of the mounting grooves corresponding to the screw holes, and screws 6 are installed in the inner rings of the first sealed bearings 14, and the lower ends of the screws 6 are threadedly connected to the corresponding screw holes, and a driving mechanism for synchronously driving the screws 6 to rotate is installed between the bases 2.
[0022] In this embodiment, the driving mechanism includes a motor 3, multiple first worm gears 8, a second worm gear 11 and multiple first worm wheels 15 and second worm wheels 13. The first worm wheels 15 are all installed on the lead screw 6. The first worm gears 8 are all arranged inside the mounting groove and are meshed with the first worm gear 15. The second worm gears 13 are all installed in the middle of the first worm gears 8. The second worm gears 11 are all arranged below the second worm gear 13 and are meshed with the second worm gear 13.
[0023] In this embodiment, shaft holes are provided on the opposite surfaces of the base 2, mounting holes are provided on the opposite surfaces of the base 2, second sealed bearings 12 are installed in the mounting holes, a shaft rod 9 is provided between the bases 2, both ends of the shaft rod 9 pass through the shaft holes and are fixedly connected to the second worm 11, and one end of the second worm 11 away from the shaft rod 9 is installed in the inner ring of the second bearing, the motor 3 is installed on the base 2 on one side, and the rotating shaft of the motor 3 is fixedly connected to the second worm 11 on one side.
[0024] In this embodiment, third sealed bearings are embedded at both ends of the mounting groove in the width direction, and a rear rotating shaft 16 is installed in the inner ring of the third sealed bearing. The opposite ends of the rotating shaft 16 are fixedly connected to the end face of the first worm 8, so that the first worm can only rotate around the third sealed bearing, avoiding deflection.
[0025] In this embodiment, the middle of the installation groove is recessed to form an avoidance groove 7, and the upper half of the second worm gear 13 extends into the avoidance groove 7, thereby avoiding affecting the rotation of the second worm gear.
[0026] In this embodiment, the bottom surface of the universal wheel 4 does not protrude from the bottom surface of the base 2;
[0027] When not in use, the universal wheel can be driven by the screw rod to completely retract into the installation slot. At this time, the bottom surface of the base can contact the ground, thereby covering the internal equipment to ensure the service life of the internal equipment and the universal wheel, and the weight of the twin-screw extruder can also act directly on the ground through the base.
[0028] In this embodiment, the side surfaces of the adjustment block are in contact with the inner side surfaces of the mounting groove; wherein, a slider can be installed on the side surfaces of the adjustment block, and a slide groove is provided on the inner wall surface of the mounting groove opposite to the slider, and the slider is slidably arranged in the slide groove, so that the universal wheel can move up and down stably along the slide groove.
[0029] When in use, the motor can be started, and the start of the motor drives the second worm and the shaft, and the rotation of the second worm synchronously drives the second worm wheel, and the rotation of the second worm wheel synchronously drives the first worm, and the rotation of the first worm synchronously drives the worm wheel, and the worm wheel synchronously drives the lead screw, and the rotating lead screw can drive the adjustment seat and the universal wheel to move downward along the inner wall of the mounting groove, and the height of the twin-screw extruder can be adjusted by extending and retracting the universal wheel, which greatly increases the adaptability, and after the universal wheel is exposed, the twin-screw extruder can be directly pushed by the universal wheel, which increases the convenience of moving the twin-screw extruder, and because the four universal wheels move up and down synchronously, it is ensured that the heights of the four twin-screw extruders are completely the same, avoiding the tilting state, and the height adjustment can be completed by only one motor, which greatly increases the efficiency of the operation.
[0030] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that are not conceived through creative work should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope defined in the claims.
Claims
1. A twin-screw extruder that is easy to lift, characterized in that: The invention comprises a twin-screw extruder (1), wherein a plurality of bases (2) are installed on the bottom surface of the twin-screw extruder (1), a mounting groove with an opening at the lower end is formed inside the bases (2), a plurality of universal wheels (4) are arranged in the mounting grooves, an adjustment seat (5) is installed on the bracket of the universal wheel (4), the adjustment seats (5) are arranged opposite to each other, a screw hole is arranged at the center of the adjustment seat (5), a first sealed bearing (14) is embedded and installed at the top surface of the mounting groove facing the screw hole, a screw (6) is installed in the inner ring of the first sealed bearing (14), the lower end of the screw (6) is threadedly connected to the corresponding screw hole, and a driving mechanism for synchronously driving the screw (6) to rotate is installed between the bases (2).
2. The twin-screw extruder that is easy to lift according to claim 1, characterized in that: The driving mechanism comprises a motor (3), a plurality of first worms (8), a second worm (11) and a plurality of first worm wheels (15) and a second worm wheel (13); the first worm wheels (15) are all mounted on the lead screw (6); the first worms (8) are all arranged inside the mounting groove and are meshedly connected with the first worm wheels (15); the second worm wheels (13) are all mounted in the middle of the first worms (8); the second worms (11) are all arranged below the second worm wheels (13) and are meshedly connected with the second worm wheels (13).
3. The twin-screw extruder that is easy to lift according to claim 2, characterized in that: Axial holes are provided on opposite surfaces of the base (2), mounting holes are provided on opposite surfaces of the base (2), second sealed bearings (12) are installed in the mounting holes, a shaft (9) is provided between the bases (2), both ends of the shaft (9) pass through the shaft holes and are fixedly connected to the second worm (11), one end of the second worm (11) away from the shaft (9) is installed in the inner ring of the second bearing, the motor (3) is installed on the base (2) on one side, and the rotating shaft of the motor (3) is fixedly connected to the second worm (11) on one side.
4. The twin-screw extruder that is easy to lift according to claim 2, characterized in that: A third sealed bearing is embedded and installed at both ends of the installation groove in the width direction, a rear rotating shaft (16) is installed in the inner ring of the third sealed bearing, and the opposite ends of the rotating shaft (16) are fixedly connected to the end surface of the first worm (8).
5. The twin-screw extruder that is easy to lift according to claim 2, characterized in that: The middle of the installation groove is recessed to form an avoidance groove (7), and the upper half of the second worm gear (13) extends into the avoidance groove (7).
6. The twin-screw extruder that is easy to lift according to claim 1, characterized in that: The bottom surface of the universal wheel (4) does not protrude from the bottom surface of the base (2).
7. The twin-screw extruder that is easy to lift according to claim 1, characterized in that: The side surfaces of the adjusting block are in contact with the inner side surfaces of the mounting groove.