Double-screw extruder for plastic production

Abstract

The utility model relates to the related field of twin-screw extruders, in particular to a plastic production twin-screw extruder, which comprises a whole device, the whole device internally comprises an outer frame, a maintenance assembly and a mouth mold assembly, one end of the outer frame is provided with a motor, the inner side of the motor is connected with a twin-screw part, the lower end of the outer frame is provided with a lower support, and the lower support is connected with the mouth mold assembly. A feeding port is formed in the upper end of the outer frame, an access port is formed in one side of the feeding port, the overhauling assembly is installed on the access port, a limiting hole and an inner frame are arranged on the inner side of the access port, a discharging port is formed in the side, symmetrical to the motor, of the outer frame, the opening mold assembly is connected to the outer side of the discharging port, and the overhauling assembly comprises an outer cover plate. The mouth mold assembly comprises a mouth mold body and a telescopic rod, the outer cover plate can be rapidly disassembled, assembled and limited, the interior of the equipment can be conveniently overhauled and cleaned, the mouth mold body can be rapidly disassembled, assembled and limited, and the mouth mold body can be conveniently replaced or maintained.

Description

Technical Field

[0001] The utility model relates to the field of twin-screw extruders, in particular to a twin-screw extruder for plastic production. Background Art

[0002] Twin-screw extruder is a plastic processing equipment developed on the basis of single-screw extruder. It has excellent feeding performance, mixing and plasticizing performance, exhaust performance and extrusion stability, so it is widely used in the molding processing of extruded products.

[0003] The utility model patent with publication number CN218928556U in the prior art proposes a twin-screw extruder for modified plastic production. The material is poured into the extruder through the feed port, and the size of the gap between the two baffles is adjusted by pulling the handle to rotate the hinge block. The larger the gap, the faster the material is injected into the extruder, and vice versa. The smaller the gap, the slower the speed. After the gap size is adjusted, the material is injected into the extruder through the feed port for processing, which reduces the probability of the extruder being blocked by the material and improves the use effect of the equipment.

[0004] However, it does not have the ability to conveniently disassemble and assemble the equipment shell locally, which makes it inconvenient to perform inspection and maintenance on the inside of the equipment. When cleaning the inside, it is necessary to disassemble and assemble the shell as a whole through external workpieces, which is more troublesome. At the same time, it does not have the ability to conveniently disassemble the mouth mold of the equipment. When faced with different discharge requirements, it cannot quickly adapt to respond. Therefore, we need to upgrade and transform on the basis of existing technologies to overcome existing problems and deficiencies. Utility Model Content

[0005] The purpose of the utility model is to provide a twin-screw extruder for plastic production to solve the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A twin-screw extruder for plastic production is designed, including an overall device, which includes an outer frame, an inspection component and a die component. A motor is provided at one end of the outer frame and a twin-screw component is connected to the inner side of the motor. A lower bracket is provided at the lower end of the outer frame, a feeding port is provided at the upper end of the outer frame and an inspection port is provided on one side of the feeding port. The inspection component is installed on the inspection port, and a limiting hole and an inner frame are provided on the inner side of the inspection port. The outer frame is provided with a discharge port on the symmetrical side of the motor, and the die component is connected to the outside of the discharge port.

[0008] Furthermore, the maintenance assembly includes an outer cover plate, a movable groove is opened inside the outer cover plate, two sets of gears are rotatably arranged inside the movable groove, two sets of racks are engaged with the outer sides of the gears, the upper end of the gear is connected to a friction shaft and the friction shaft is connected to a knob, and an inner cover plate is provided at the bottom of the outer cover plate.

[0009] Furthermore, the die assembly includes a die piece and a telescopic rod, the inner side of the die piece is provided with a plug connector and both ends are provided with through holes, the front end of the telescopic rod is connected to a rotary cylinder, and the front end of the rotary cylinder is connected to a limit block.

[0010] Furthermore, a hinge seat is provided on one side of the outer cover plate and the hinge seat is rotatably connected in the inspection port, the outer cover plate is attached to the inner frame, and the inner cover plate is inserted into the inner frame.

[0011] Furthermore, both ends of the rack are movable and penetrate to the outside of the movable groove, and the outer ends of the rack are correspondingly inserted into the limiting holes.

[0012] Furthermore, the mouth module is connected to the outer end of the discharge port through a plug connector, the telescopic rod is fixed on both sides of the discharge port, and the limit block and the through hole are plugged into each other.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model is provided with a hinge seat, an outer cover, a movable groove, a gear, a rack, a friction shaft, a knob and an inner cover in the device. The knob drives the gear to rotate, and the gear drives the rack to move and connect with the limit hole, which can realize the quick disassembly and limitation of the outer cover, facilitates the inspection and cleaning of the interior of the equipment, has a simple structure and is easy to operate. There is no need to remove the bolts with tools, which improves the maintenance efficiency of the device.

[0015] 2. The utility model is provided with a discharge port, a mouth module, a plug connector, a telescopic rod, a rotary cylinder, a limit block and a through hole in the device. The telescopic rod and the rotary cylinder are used to control the forward and backward movement and rotation of the limit block. The limit block corresponds to the through hole, which can realize the rapid disassembly and limitation of the mouth module, facilitates the replacement or maintenance of the mouth module, greatly reduces the amount of manual labor, and avoids the time-consuming and labor-intensive problem of manual disassembly and fixation.

[0016] With reference to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope thereby. The embodiments of the present invention include numerous variations, modifications, and equivalents within the spirit and scope of the appended claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of a twin-screw extruder for plastic production according to the utility model;

[0019] Figure 2 A schematic diagram of the working structure of a twin-screw extruder for plastic production according to the utility model;

[0020] Figure 3 This is an exploded view of the maintenance components of a twin-screw extruder for plastic production according to the utility model;

[0021] Figure 4 The utility model is an exploded view of the die assembly of a twin-screw extruder for plastic production.

[0022] In the figure: 1, the whole device; 2, the outer frame; 21, the lower bracket; 22, the loading port;

[0023] 23. Inspection port; 24. Limiting hole; 25. Inner frame; 3. Motor; 4. Twin screw member;

[0024] 5. Inspection assembly; 51. Articulated seat; 52. Outer cover; 53. Movable slot; 54. Gear; 55. Rack; 56. Friction shaft; 57. Knob; 58. Inner cover; 6. Discharge port;

[0025] 7. Mouth die assembly; 71. Mouth die piece; 72. Plug connector; 73. Telescopic rod; 74. Rotary cylinder; 75. Limit block; 76. Through hole. DETAILED DESCRIPTION

[0026] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0027] like Figure 1 -4, the present embodiment provides a twin-screw extruder for plastic production, including an overall device 1, which includes an outer frame 2, an inspection component 5 and a die assembly 7. A motor 3 is provided at one end of the outer frame 2 and a twin-screw member 4 is connected to the inner side of the motor 3. A lower bracket 21 is provided at the lower end of the outer frame 2, a loading port 22 is provided at the upper end of the outer frame 2 and an inspection port 23 is provided on one side of the loading port 22. The inspection component 5 is installed on the inspection port 23, and a limiting hole 24 and an inner frame 25 are provided on the inner side of the inspection port 23. The outer frame 2 is provided with a discharge port 6 on the symmetrical side of the motor 3, and the die assembly 7 is connected to the outer side of the discharge port 6.

[0028] Preferably, the inspection assembly 5 includes an outer cover plate 52, a movable groove 53 is opened inside the outer cover plate 52, two sets of gears 54 are rotatably provided inside the movable groove 53, two sets of racks 55 are meshed on the outer side of the gear 54, the upper end of the gear 54 is connected to a friction shaft 56 and the friction shaft 56 is connected to a knob 57, an inner cover plate 58 is provided at the bottom of the outer cover plate 52, a hinge seat 51 is provided on one side of the outer cover plate 52 and the hinge seat 51 is rotatably connected to the inspection port 23, the outer cover plate 52 is attached to the inner frame 25, and the inner cover plate 58 is plugged into the inner frame 25. In the inner frame 25, both ends of the rack 55 are movable and extend to the outside of the movable groove 53. The outer ends of the rack 55 are correspondingly inserted into the limiting holes 24. The rotation of the gear 54 is controlled by the knob 57. The gear 54 drives the rack 55 to move and retract in the movable groove 53. By correspondingly plugging or separating the rack 55 and the limiting holes 24, the outer cover 52 can be quickly opened and closed, which facilitates the opening or closing of the inspection port 23, and further facilitates the cleaning and maintenance of the inside of the extruder. The operation is simple and convenient, which improves the equipment maintenance efficiency.

[0029] The locking cam 75 is engaged with the locking cam 76 and the engagement of the support 77 with the support 78. The locking cam 76 engages with the support 79 of the support member 71 so that the locking cam 76 can be engaged with the support 79 of the support member 71.

[0030] The principle and process of use of the present invention are as follows: when in use, raw materials can be added to the outer frame 2 through the feeding port 22, the twin screw member 4 is driven to rotate and extrude by the motor 3, and the material is discharged by the discharge port 6 and the die 71. When the interior of the extruder needs to be inspected and cleaned, the friction shaft 56 and the gear 54 are controlled to rotate by the knob 57, and the gear 54 drives the rack 55 to move and retract into the movable groove 53, so that the rack 55 is separated from the limiting hole 24, thereby realizing the quick opening of the outer cover 52, which is convenient for the inspection port 23 is opened and the interior of the extruder is cleaned and inspected. The operation is simple and convenient, and there is no need to disassemble the equipment shell, which improves the equipment maintenance efficiency. When the mouth module 71 needs to be replaced, the rotary cylinder 74 can be controlled to work and drive the limit block 75 to rotate ninety degrees. Then the telescopic rod 73 is controlled to retract. The telescopic rod 73 drives the rotary cylinder 74 and the limit block 75 to move backward and allow the limit block 75 to pass through the through hole 76. At this time, the mouth module 71 can be removed and replaced. After replacement, the operation is reversed and the limit block 75 is tightened to the outer end of the through hole 76.

[0031] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] In the description of this embodiment, the terms "upper," "lower," "right," and other orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely for ease of description and simplified operation. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used solely for descriptive purposes and have no special meaning.

Claims

1. A twin-screw extruder for plastic production, characterized by: The invention comprises an overall device (1), wherein the overall device (1) comprises an outer frame (2), an inspection component (5) and a die component (7); a motor (3) is provided at one end of the outer frame (2), and a twin-screw member (4) is connected to the inner side of the motor (3); a lower bracket (21) is provided at the lower end of the outer frame (2); a feed port (22) is provided at the upper end of the outer frame (2), and an inspection port (23) is provided on one side of the feed port (22); the inspection component (5) is installed on the inspection port (23); a limiting hole (24) and an inner frame (25) are provided on the inner side of the inspection port (23); a discharge port (6) is provided on the outer frame (2) on the symmetrical side of the motor (3); and the die component (7) is connected to the outer side of the discharge port (6).

2. A twin-screw extruder for plastic production according to claim 1, characterized in that: The maintenance assembly (5) includes an outer cover plate (52), a movable groove (53) is provided inside the outer cover plate (52), two sets of gears (54) are rotatably provided inside the movable groove (53), two sets of racks (55) are meshed on the outer sides of the gears (54), a friction shaft (56) is connected to the upper end of the gear (54), and a knob (57) is connected to the friction shaft (56), and an inner cover plate (58) is provided at the bottom of the outer cover plate (52).

3. A twin-screw extruder for plastic production according to claim 1, characterized in that: The die assembly (7) comprises a die piece (71) and a telescopic rod (73). The die piece (71) is provided with a plug connector (72) on its inner side and through holes (76) at both ends. The front end of the telescopic rod (73) is connected to a rotary cylinder (74), and the front end of the rotary cylinder (74) is connected to a limit block (75).

4. A twin-screw extruder for plastic production according to claim 2, characterized in that: A hinge seat (51) is provided on one side of the outer cover plate (52), and the hinge seat (51) is rotatably connected to the inspection port (23). The outer cover plate (52) is attached to the inner frame (25), and the inner cover plate (58) is inserted into the inner frame (25).

5. A twin-screw extruder for plastic production according to claim 2, characterized in that: Both ends of the rack (55) are movable and penetrate the outside of the movable groove (53), and the outer ends of the rack (55) are correspondingly inserted into the limiting holes (24).

6. A twin-screw extruder for plastic production according to claim 3, characterized in that: The mouth module (71) is connected to the outer end of the discharge port (6) via a plug connector (72), the telescopic rod (73) is fixed on both sides of the discharge port (6), and the limit block (75) and the through hole (76) are plugged in and correspond to each other.

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