A single screw extruder for producing a foamed masterbatch

Abstract

The utility model discloses a single screw extruder for producing foamed mother piece, including the feed hopper of extruder body top, the top of feed hopper is provided with the support plate, be provided with the pivot and the rotary part on the support plate, the top of pivot is connected with the bottom of support plate, the rotary part is connected with pivot and is used for driving pivot rotation, the lateral wall of pivot is vertically provided with the rotary groove, be provided with the stirring shaft and transmission mechanism on the pivot, the end of stirring shaft is connected with the lateral wall of pivot, the utility model discloses simple structure, reasonable in design, through the pivot, the rotary part, stirring shaft and transmission mechanism on the support plate, promote the flowability of raw materials in feed hopper, so that raw materials are not easy to accumulate and jam the feed hopper, thereby making raw materials can be smoothly transmitted to the extruder body, thereby facilitating production and processing.

Description

Technical Field

[0001] This utility model relates to the technical field of foamed mother sheet production, specifically a single-screw extruder for producing foamed mother sheets. Background Technology

[0002] Single-screw extruders are core equipment in the plastics processing industry, widely used in the production of granulation, pipes, sheets, and foamed materials. The working principle of a single-screw extruder essentially involves using the rotational motion of the screw to transform solid plastic raw materials into a homogeneous melt, and then establishing pressure to achieve continuous extrusion molding.

[0003] The shortcomings of existing technology:

[0004] The aforementioned single-screw extruder includes an extruder body with a feed hopper installed on top. When workers process foam masterbatch, the masterbatch is usually transferred to the feed hopper. Because the masterbatch contains foaming agents, light fillers, or recycled materials, the material is loose and has poor flowability. The material tends to accumulate in the feed hopper, which can easily clog it. This makes it difficult for the material to be transferred to the extruder body, thus affecting the normal operation of the extruder. Utility Model Content

[0005] The purpose of this invention is to provide a single-screw extruder for producing foamed masterbatch, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A single-screw extruder for producing foamed masterbatch includes a feed hopper located at the top of the extruder body. A support plate is provided at the top of the feed hopper. A rotating shaft and a rotating component are mounted on the support plate. The top of the rotating shaft is connected to the bottom of the support plate. The rotating component is connected to the rotating shaft and drives the rotating shaft to rotate. A rotating groove is vertically formed on the side wall of the rotating shaft. A stirring shaft and a conveying mechanism are mounted on the rotating shaft. The end of the stirring shaft is connected to the side wall of the rotating shaft. The conveying mechanism includes:

[0008] A transmission block, one side of which is located inside a rotating groove and slidably connected to the side wall of the rotating groove, and the other side of which extends outside the rotating groove, is provided with a driving mechanism on the transmission block, which is connected to the transmission block and used to drive the transmission block to rise and fall.

[0009] A transmission rod is provided, the top of which is connected to the side wall of the transmission block, and a transmission groove is coaxially provided on the other end of the transmission rod. The side wall of the transmission groove is used to slide and connect with the side wall of the stirring shaft.

[0010] Preferably, a drive groove is horizontally formed on the side wall of the transmission block, and the drive mechanism includes:

[0011] A drive ring, which is coaxially arranged with the rotating shaft, passes through the transmission block and is slidably connected to the side wall of the drive groove;

[0012] A drive source is located on top of the support plate and is connected to the drive ring and used to drive the drive ring to move up and down.

[0013] Preferably, the driving source includes:

[0014] A drive rod, which is located at the top of the drive ring and connected to the drive ring;

[0015] A drive cylinder is located on top of a support plate. The cylinder body of the drive cylinder is connected to the support plate, and the piston rod of the drive cylinder is coaxially connected to the drive rod.

[0016] Preferably, the end of the stirring shaft away from the rotating shaft is provided with an abutment plate and a connecting mechanism. One side of the abutment plate is connected to the side wall of the stirring shaft, and the other side of the abutment plate abuts against the inner side wall of the feed hopper. The connecting mechanism is connected to the abutment plate and is used to drive the side wall of the abutment plate to move against the inner side wall of the feed hopper.

[0017] Preferably, the connecting mechanism includes:

[0018] A connecting plate is located on top of the abutment plate. The side wall of the connecting plate is slidably connected to the inner side wall of the feed hopper. A connecting groove is horizontally opened at the bottom of the connecting plate.

[0019] A connecting block, the top of which is slidably connected to the side wall of the connecting groove, and the bottom of which is connected to the top of the abutment plate;

[0020] A lifting component is located on a support plate and is connected to a connecting plate for driving the connecting plate to rise and fall.

[0021] Preferably, the top of the lifting connecting plate is horizontally provided with a transverse groove, and the lifting component includes:

[0022] A lifting block, wherein the lifting block is located in the transverse groove and is slidably connected to the side wall of the transverse groove;

[0023] A screw, which is located on top of the lifting block and is rotatably connected to the lifting block;

[0024] A threaded sleeve is located on a support plate and is rotatably connected to the support plate. A threaded groove is coaxially formed at the bottom of the threaded sleeve. The sidewall of the threaded groove is threadedly connected to the screw. A transmission component is provided on the threaded sleeve. The transmission component is connected to a rotating shaft and is used to make the threaded sleeve rotate with the rotating shaft.

[0025] Preferably, the transmission component includes:

[0026] The driving wheel is located on the support plate and is rotatably connected to the top of the support plate. The driving wheel is sleeved on the rotating shaft and is coaxially connected to the rotating shaft.

[0027] A transmission wheel is located on top of a support plate and rotatably connected to the support plate. The transmission wheel is located on one side of a drive wheel and meshes with the drive wheel.

[0028] The driven wheel is located on the top of the support plate and is rotatably connected to the support plate. The driven wheel is sleeved on the top of the threaded sleeve and is coaxially connected to the threaded sleeve. The driven wheel is meshed with the transmission wheel.

[0029] Compared with the prior art, the beneficial effects of this utility model are:

[0030] 1. This single-screw extruder for producing foamed masterbatch, through a support plate, rotating shaft, rotating component, stirring shaft and transmission mechanism set on the feed hopper, when the operator transmits the raw material into the feed hopper, the operator starts the rotating component, which causes the rotating shaft to rotate. Through the rotating groove and the transmission block and transmission rod, they rotate synchronously, thereby driving the stirring shaft to rotate synchronously, thereby improving the flowability of the raw material in the feed hopper, making the raw material less likely to clog the feed hopper, thus ensuring that the raw material is transmitted into the feed hopper, allowing the extruder body to operate normally, and at the same time facilitating normal production and processing by the operator;

[0031] 2. This single-screw extruder for producing foamed masterbatch is equipped with an abutment plate, a connecting mechanism and a transmission component, which makes it less likely for the end of the stirring shaft to collide with the inner wall of the feed hopper and cause damage to the inner wall of the feed hopper, thereby protecting the feed hopper and extending its service life. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0033] Figure 2 This is a partial structural schematic diagram of the present invention, mainly showing the transmission components;

[0034] Figure 3 This is a partial structural schematic diagram of the present invention, mainly showing the drive mechanism;

[0035] Figure 4 This is an exploded view of part of the structure of this utility model, mainly showing the drive groove;

[0036] Figure 5 This is an exploded view of part of the structure of this utility model, mainly showing the connecting mechanism.

[0037] In the diagram: 1. Extruder body; 11. Feed hopper; 12. Support plate; 13. Vibration motor; 14. Rotating component; 21. Rotating shaft; 22. Rotating groove; 23. Stirring shaft; 24. Abutment plate; 3. Transmission mechanism; 31. Transmission block; 32. Transmission rod; 41. Transmission groove; 42. Drive groove; 5. Drive mechanism; 51. Drive ring; 52. Drive source; 521. Drive cylinder; 522. Drive rod; 6. Connecting mechanism; 61. Connecting plate; 62. Connecting block; 63. Lifting component; 631. Screw sleeve; 632. Screw; 71. Connecting groove; 72. Ball bearing; 8. Transmission component; 81. Driving wheel; 82. Transmission wheel; 83. Driven wheel; 9. Transmission spring. Detailed Implementation

[0038] 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.

[0039] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this patent, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integrated connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this patent according to the specific circumstances.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0042] Please see Figure 1-5As shown, this utility model provides a single-screw extruder technical solution for producing foamed masterbatch:

[0043] A single-screw extruder for producing foamed masterbatch includes a feed hopper 11 located at the top of the extruder body 1. The vertically arranged feed hopper 11 is connected to the extruder body 1. A support plate 12 and a vibration motor 13 are installed on the feed hopper 11. The bottom of the horizontally arranged support plate 12 is fixedly connected to the top of the feed hopper 11. The vibration motor 13 is located on the side wall of the feed hopper 11 and is detachably connected to the side wall of the feed hopper 11 by bolts.

[0044] A rotating component 14, a rotating shaft 21, a transmission mechanism 3, and a stirring shaft 23 are mounted on the support plate 12. The rotating component 14 includes a rotating motor, which is located on the support plate 12 and fixedly connected to the support plate 12. The output shaft of the rotating motor is coaxially fixedly connected to the rotating shaft 21. One end of the vertically arranged rotating shaft 21 passes through the support plate 12 and extends into the feed hopper 11. The rotating shaft 21 is rotatably connected to the support plate 12. A rotating groove 22 is vertically opened on the side wall of the rotating shaft 21. The rotating groove 22 is T-shaped. The transmission mechanism 3 includes a transmission block 31 and a transmission rod 32. The vertically arranged transmission block 31 is T-shaped. One side of the transmission block 31 extends into the rotating groove 22 and is slidably connected to the side wall of the rotating groove 22. The other side of the transmission block 31 is hinged to the end of the transmission rod 32. The inclined transmission rod 32 extends into the feed hopper 11. A transmission groove 41 is coaxially formed at the bottom of the transmission rod 32. A transmission spring 9 is installed in the transmission groove 41. One end of the transmission spring 9 is fixedly connected to the side wall of the transmission groove 41, and the other end of the transmission spring 9 is fixedly connected to the end of the stirring shaft 23. One end of the inclined stirring shaft 23 extends into the transmission groove 41 and is slidably connected to the side wall of the transmission groove 41. An abutment plate 24 is installed on the other end of the stirring shaft 23. One side of the horizontally arranged abutment plate 24 is hinged to the end of the stirring shaft 23, and the other side of the abutment plate 24 abuts against the inner side wall of the feed hopper 11.

[0045] When the raw material is fed into the feed hopper 11, the operator starts the vibration motor 13. The vibration motor 13 starts and vibrates the feed hopper 11, making it easier for the raw material in the feed hopper 11 to be transferred into the extruder body 1. At the same time, the operator starts the rotary motor. The output shaft of the rotary motor rotates and drives the rotating shaft 21 to rotate synchronously. Through the rotating groove 22 and the transmission block 31, the transmission rod 32 rotates with the rotating shaft 21, which in turn drives the stirring shaft 23 and the abutment block to rotate synchronously. Through the stirring shaft 23 and the abutment block, the flowability of the raw material in the feed hopper 11 is improved, making it less likely for the raw material to clog the feed hopper 11, so that the raw material can be smoothly transferred from the feed hopper 11 into the extruder body 1.

[0046] A drive groove 42 is horizontally opened on the top of the transmission block 31. The drive groove 42 is T-shaped. A drive mechanism 5 for driving the transmission block 31 to rise and fall is installed on the support plate 12. The drive mechanism 5 includes a drive source 52 and a drive ring 51. The drive source 52 includes a drive cylinder 521 and a drive rod 522. The drive cylinder 521 is located on one side of the rotating shaft 21. The cylinder body of the drive cylinder 521 is fixedly connected to the bottom of the support plate 12. The piston rod of the drive cylinder 521 is set vertically downward. The piston rod of the drive cylinder 521 and the drive rod 522 are coaxially fixedly connected. The bottom of the vertically set drive rod 522 is fixedly connected to the top of the drive ring 51. The horizontally set drive ring 51 is T-shaped. The bottom of the drive ring 51 is located in the drive groove 42 and is slidably connected to the side wall of the drive groove 42.

[0047] The operator starts the drive cylinder 521. The piston rod of the drive cylinder 521 rises and falls, which drives the drive rod 522 to rise and fall synchronously. Through the drive ring 51 and the drive groove 42, the transmission block 31 rises and falls synchronously, which in turn drives the transmission rod 32, the stirring shaft 23 and the abutment block to rise and fall synchronously. This further improves the flowability of the raw material in the feed hopper 11, making it less likely for the raw material to clog the feed hopper 11, and allowing the raw material to be transferred from the feed hopper 11 to the extruder body 1.

[0048] A transmission component 8 and a connecting mechanism 6 are mounted on the support plate 12. The transmission component 8 includes a driving wheel 81, a transmission wheel 82, and a driven wheel 83. The connecting mechanism 6 includes a lifting component 63, a connecting plate 61, and a connecting block 62. The lifting component 63 includes a threaded sleeve 631 and a screw 632. The horizontally positioned driving wheel 81 is sleeved on the top of the rotating shaft 21 and is coaxially and fixedly connected to the rotating shaft 21. The bottom of the driving wheel 81 is rotatably connected to the top of the support plate 12. The horizontally positioned transmission wheel 82 is located on one side of the driving wheel 81 and is meshed with the driving wheel 81. The bottom of the transmission wheel 82 is rotatably connected to the top of the support plate 12. The horizontally positioned driven wheel 83 is located on one side of the transmission wheel 82 and is meshed with the transmission wheel 82. The bottom of the driven wheel 83 is rotatably connected to the top of the support plate 12. The driven wheel 83 is coaxially and fixedly connected to the threaded sleeve 631. The vertically positioned threaded sleeve 631 passes through the support plate 12 and is rotatably connected to the support plate 12. The screw sleeve 631 has a vertically threaded groove at its bottom. The end of the vertically positioned screw 632 is threaded into the groove on the screw sleeve 631, and the other end of the screw 632 is rotatably connected to the top of the connecting plate 61. The horizontally positioned connecting plate 61 is annular, and its sidewall is slidably connected to the sidewall of the feed hopper 11. The bottom of the connecting plate 61 has a T-shaped connecting groove 71 coaxially formed. The horizontally positioned connecting block 62 is also T-shaped, with its top extending into the connecting groove 71 and slidably connected to the sidewall of the groove 71. The bottom of the connecting block 62 is fixedly connected to the top of the abutment plate 24. A ball bearing 72 is installed on the sidewall of the connecting block 62. One side of the ball bearing 72 is rotatably connected to the sidewall of the connecting block 62, and the other side of the ball bearing 72 contacts the sidewall of the connecting groove 71, thereby reducing wear between the connecting block 62 and the sidewall of the connecting groove 71 and extending the service life of the connecting block 62.

[0049] The working principle of this utility model is as follows:

[0050] In this embodiment, a single-screw extruder for producing foamed masterbatch is used. The operator feeds the raw material into the feed hopper 11 and starts the rotating motor. The output shaft of the rotating motor rotates, causing the rotating shaft 21 to rotate synchronously. Through the transmission block 31 and the rotating groove 22, the transmission rod 32 rotates with the rotating shaft 21, thereby driving the stirring shaft 23 to rotate synchronously. This improves the flowability of the raw material in the feed hopper 11. Simultaneously, the rotating shaft 21 drives the drive wheel 81 to rotate synchronously, causing the transmission wheel 82 and the driven wheel 83 to rotate synchronously. This, in turn, causes the screw sleeve 631 to rotate synchronously, resulting in the screw 632 rising and falling synchronously. The rising and falling of the screw 632 causes the connecting plate 61 and the connecting block 62 to rise and fall synchronously, thereby causing the abutment plate 24, the stirring shaft 23, and the transmission rod 32 to move synchronously. This further adjusts the rotation radius of the stirring shaft 23 and the transmission rod 32, thereby improving the flowability of the raw material in the feed hopper 11 and making it easier for the raw material to be transferred into the extruder body 1. In addition, the staff adjusts the drive cylinder 521. The piston rod of the drive cylinder 521 rises and falls, which drives the drive rod 522 to rise and fall synchronously, and then drives the drive ring 51 to move synchronously. Through the drive groove 42, the transmission block 31 rises and falls synchronously, and finally adjusts the position of the transmission rod 32 and the stirring shaft 23, which further improves the flowability of the raw material, making it less likely for the raw material to accumulate and block in the feed hopper 11. This makes it easier for the raw material to be transmitted to the extruder body 1, so that the extruder body 1 can operate normally and facilitate normal production and processing by the staff.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. 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 preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A single-screw extruder for producing foamed masterbatch, comprising a feed hopper (11) located at the top of the extruder body (1), characterized in that: The top of the feed hopper (11) is provided with a support plate (12), on which a rotating shaft (21) and a rotating component (14) are provided. The top of the rotating shaft (21) is connected to the bottom of the support plate (12), and the rotating component (14) is connected to the rotating shaft (21) and is used to drive the rotating shaft (21) to rotate. A rotating groove (22) is vertically opened on the side wall of the rotating shaft (21). A stirring shaft (23) and a transmission mechanism (3) are provided on the rotating shaft (21). The end of the stirring shaft (23) is connected to the side wall of the rotating shaft (21). The transmission mechanism (3) includes: A transmission block (31) has one side located inside a rotating groove (22) and slidably connected to the side wall of the rotating groove (22), and the other side of the transmission block (31) extends outside the rotating groove (22). A drive mechanism (5) is provided on the transmission block (31), and the drive mechanism (5) is connected to the transmission block (31) and used to drive the transmission block (31) to rise and fall. The top of the transmission rod (32) is connected to the side wall of the transmission block (31), and the other end of the transmission rod (32) is coaxially provided with a transmission groove (41). The side wall of the transmission groove (41) is used to slide and connect with the side wall of the stirring shaft (23).

2. The single-screw extruder for producing foamed masterbatch according to claim 1, characterized in that: A drive groove (42) is horizontally formed on the side wall of the transmission block (31), and the drive mechanism (5) includes: Drive ring (51), the drive ring (51) is coaxially arranged with the rotating shaft (21), the drive ring (51) passes through the transmission block (31) and is slidably connected to the side wall of the drive groove (42); A drive source (52) is located on top of a support plate (12). The drive source (52) is connected to a drive ring (51) and is used to drive the drive ring (51) to move up and down.

3. A single-screw extruder for producing foamed masterbatch according to claim 2, characterized in that: The driving source (52) includes: A drive rod (522) is located on top of the drive ring (51) and connected to the drive ring (51); A drive cylinder (521) is located on top of a support plate (12). The cylinder body of the drive cylinder (521) is connected to the support plate (12), and the piston rod of the drive cylinder (521) is coaxially connected to the drive rod (522).

4. A single-screw extruder for producing foamed masterbatch according to claim 1, characterized in that: The stirring shaft (23) is provided with an abutment plate (24) and a connecting mechanism (6) at one end away from the rotating shaft (21). One side of the abutment plate (24) is connected to the side wall of the stirring shaft (23), and the other side of the abutment plate (24) abuts against the inner side wall of the feed hopper (11). The connecting mechanism (6) is connected to the abutment plate (24) and is used to drive the side wall of the abutment plate (24) to move against the inner side wall of the feed hopper (11).

5. A single-screw extruder for producing foamed masterbatch according to claim 4, characterized in that: The connecting mechanism (6) includes: A connecting plate (61) is located on top of the abutment plate (24). The side wall of the connecting plate (61) is slidably connected to the inner side wall of the feed hopper (11). A connecting groove (71) is horizontally opened at the bottom of the connecting plate (61). Connecting block (62), the top of the connecting block (62) is slidably connected to the side wall of the connecting groove (71), and the bottom of the connecting block (62) is connected to the top of the abutment plate (24); The lifting component (63) is located on the support plate (12) and is connected to the connecting plate (61) and is used to drive the connecting plate (61) to lift.

6. A single-screw extruder for producing foamed masterbatch according to claim 5, characterized in that: The lifting component (63) includes: Screw (632), the screw (632) is located on top of the connecting plate (61) and is rotatably connected to the connecting plate (61); A threaded sleeve (631) is located on a support plate (12) and is rotatably connected to the support plate (12). A threaded groove is coaxially provided at the bottom of the threaded sleeve (631). The side wall of the threaded groove is threadedly connected to the screw (632). A transmission component (8) is provided on the threaded sleeve (631). The transmission component (8) is connected to the rotating shaft (21) and is used to make the threaded sleeve (631) rotate with the rotating shaft (21).

7. A single-screw extruder for producing foamed masterbatch according to claim 6, characterized in that: The transmission component (8) includes: The driving wheel (81) is located on the support plate (12) and is rotatably connected to the top of the support plate (12). The driving wheel (81) is sleeved on the rotating shaft (21) and is coaxially connected to the rotating shaft (21). The transmission wheel (82) is located on the top of the support plate (12) and is rotatably connected to the support plate (12). The transmission wheel (82) is located on one side of the drive wheel (81) and is meshed with the drive wheel (81). Driven wheel (83) is located on top of support plate (12) and rotatably connected to support plate (12). Driven wheel (83) is sleeved on top of threaded sleeve (631) and coaxially connected to threaded sleeve (631). Driven wheel (83) is meshed with drive wheel (82).

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