Single-screw rubber extruder capable of preventing discharging blockage

Abstract

The utility model discloses a single-screw rubber extruder capable of preventing discharge blockage in the field of single-screw rubber extruders, which comprises a bottom plate, a support plate, an extrusion barrel, an extrusion head, an anti-blocking mechanism and a connecting mechanism, the support plate is fixedly connected to the bottom plate, the extrusion barrel is fixedly connected to the top of the support plate, the extrusion head is fixedly connected to the bottom plate, and the anti-blocking mechanism is fixedly connected to the bottom plate. According to the single-screw rubber extruder capable of preventing discharging blockage, when an extrusion head breaks down, a heating wire is started, the temperature in a mounting cavity is increased through heating of the heating wire, heat is transferred to the extrusion head, and therefore the extrusion head is heated, meanwhile, when a screw rod rotates, the screw rod is prevented from being blocked, and the extrusion head is prevented from being blocked. And a connecting rod is driven to rotate, so that a stirring rod rotates, a scraping plate is driven to rotate, the inner side wall of the extrusion head is scraped, and rubber residues are avoided, so that when the extrusion head breaks down, the rubber in the extrusion head is prevented from being solidified, blockage is avoided, discharging is facilitated, and the rubber residues are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of single-screw rubber extruders, and specifically relates to a single-screw rubber extruder for preventing material discharge blockage. Background Technique

[0002] An extruder is one of the most important devices in the injection molding products, especially in the rubber production industry. Plastic extruders can be divided into single-screw, double-screw and multi-screw extruders according to the number of their screws. During the rubber production process, a single-screw rubber extruder is often needed to extrude the molten rubber into a formed product to make the required product shape.

[0003] At present, the discharge port of the extruder always gets blocked during the work break. For example, when the die equipment fails, some materials in the discharge head of the extruder stagnate. The discharge head of the extruder is relatively small and cannot be directly heated by the heating device inside the extruder, resulting in the solidification of the materials and easy blockage. For this reason, we propose a single-screw rubber extruder for preventing material discharge blockage. Content of the Utility Model

[0004] The purpose of the utility model is to provide a single-screw rubber extruder for preventing material discharge blockage, so as to solve the problem that the discharge port of the current extruder always gets blocked during the work break. Due to the relatively small discharge head of the extruder, it cannot be directly heated by the heating device inside the extruder, resulting in the solidification of the materials and easy blockage as mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A single-screw rubber extruder for preventing material discharge blockage, including a bottom plate, a support plate, a material extrusion cylinder, an extrusion head, an anti-blocking mechanism and a connection mechanism. The support plate is fixedly connected to the bottom plate, the material extrusion cylinder is fixedly connected to the top of the support plate, the anti-blocking mechanism is fixedly connected to the right side of the material extrusion cylinder, the extrusion head is fixedly connected to the inside of the anti-blocking mechanism through the connection mechanism. A spiral rod is rotatably connected through the middle of the left side of the inner cavity of the material extrusion cylinder, a heating plate is embedded inside the material extrusion cylinder, a driving motor is fixedly connected to the left side of the material extrusion cylinder, a material feeding cylinder is fixedly connected to the left side of the top of the outer side wall of the material extrusion cylinder. The anti-blocking mechanism includes a connecting rod, a stirring rod, a scraping plate, an installation ring, an installation cavity and a heating wire. The right end of the spiral rod is fixedly connected to the connecting rod, the outer side wall of the connecting rod is evenly fixedly connected with stirring rods, the other end of the stirring rod is fixedly connected with a scraping plate, the right side of the material extrusion cylinder is fixedly connected with an installation ring, an installation cavity is opened inside the installation ring, and heating wires are evenly fixedly connected to the left and right sides of the installation cavity.

[0006] As a further description of the above technical solution:

[0007] The input ends of the heating plate, the driving motor, and the heating wire are electrically connected to the output end of an external power supply, and the end of the output shaft of the driving motor is fixedly connected to the left end of the screw rod.

[0008] As a further description of the above technical solution:

[0009] The inner side wall of the mounting ring fits against the outer side wall of the extrusion head, and the outer side wall of the scraping plate fits against the inner side wall of the extrusion head.

[0010] As a further description of the above technical solution:

[0011] The connecting mechanism includes a mounting box, a baffle plate, a connecting plate, a return spring, a fixing plate, and an L-shaped plate. Mounting boxes are symmetrically and fixedly connected to the outer side wall of the mounting ring. The middle parts of the mutually remote sides of the front and rear mounting boxes are slidably connected through the baffle plates. Connecting plates are fixedly connected to the mutually remote sides of the front and rear baffle plates. Return springs are fixedly connected to the top and bottom of the left and right sides of the opposite sides of the front and rear connecting plates. Fixing plates are symmetrically and fixedly connected to the right part of the outer side wall of the extrusion head. L-shaped plates are fixedly connected to the mutually remote sides of the front and rear fixing plates.

[0012] As a further description of the above technical solution:

[0013] The front and rear ends of the return spring are respectively fixedly connected to the opposite sides of the connecting plate and the mounting box.

[0014] As a further description of the above technical solution:

[0015] Both the right side of the baffle plate and the left side of the L-shaped plate are provided with inclined surfaces.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] 1. For this single-screw rubber extruder that prevents material discharge blockage, when a failure occurs in the extrusion head, the heating wire is started. Through the heating of the heating wire, the temperature inside the installation cavity rises, and the heat is transferred to the extrusion head, thereby heating the extrusion head. At the same time, when the screw rod rotates, it drives the connecting rod to rotate, causing the stirring rod to rotate and driving the scraping plate to rotate, scraping the inner side wall of the extrusion head to avoid rubber residue, thus preventing the rubber inside the extrusion head from solidifying when a failure occurs in the extrusion head, avoiding blockage, facilitating material discharge, and avoiding rubber residue.

[0018] 2. For the single-screw rubber extruder that prevents material discharge blockage, by pulling the connecting plate, the baffle moves, releasing the fixation of the L-shaped plate. Then, pull the extrusion head to disassemble the extrusion head. After that, install a new extrusion head, embed the L-shaped plate inside the installation box, and squeeze the extrusion head so that the inclined surface of the L-shaped plate squeezes the inclined surface of the baffle, causing the baffle to move. When the L-shaped plate releases the extrusion of the baffle, through the reset of the return spring, the baffle is reset to limit the L-shaped plate, completing the installation. This makes it convenient to replace extrusion heads of different models, saving time and effort in replacement, improving the replacement efficiency, and enhancing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 FIG. 6 is a schematic diagram of the overall structure of a single-screw rubber extruder that prevents material discharge blockage proposed by the present utility model;

[0020] Figure 2 FIG. 10 is a schematic diagram of the screw rod installation structure of a single-screw rubber extruder that prevents material discharge blockage proposed by the present utility model;

[0021] Figure 3 FIG. 14 is a schematic diagram of the anti-blocking mechanism structure of a single-screw rubber extruder that prevents material discharge blockage proposed by the present utility model;

[0022] Figure 4 FIG. 18 is a schematic diagram of the connection mechanism structure of a single-screw rubber extruder that prevents material discharge blockage proposed by the present utility model.

[0023] In the figure: 100, bottom plate; 200, support plate; 300, material extrusion cylinder; 310, screw rod; 320, heating plate; 330, driving motor; 340, material feeding cylinder; 400, extrusion head; 500, anti-blocking mechanism; 510, connecting rod; 520, stirring rod; 530, scraping plate; 540, installation ring; 550, installation cavity; 560, heating wire; 600, connection mechanism; 610, installation box; 620, baffle; 630, connecting plate; 640, return spring; 650, fixing plate; 660, L-shaped plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0027] The present utility model provides a single-screw rubber extruder for preventing material discharge blockage, which can prevent the rubber inside the extrusion head from solidifying when the extrusion head fails, avoid blockage, facilitate material discharge, and avoid rubber residue. Please refer to Figures 1-4 , which includes a bottom plate 100, a support plate 200, a material extrusion cylinder 300, an extrusion head 400, an anti-blocking mechanism 500, and a connection mechanism 600;

[0028] Please refer to again Figure 1 , the bottom plate 100 is used to install the support plate 200, the material extrusion cylinder 300, the extrusion head 400, the anti-blocking mechanism 500, and the connection mechanism 600;

[0029] Please refer to again Figure 2 , the support plate 200 is fixedly connected to the bottom plate 100 and is used to install the material extrusion cylinder 300. The material extrusion cylinder 300 is fixedly connected to the top of the support plate 200. The anti-blocking mechanism 500 is fixedly connected to the right side of the material extrusion cylinder 300 to avoid blockage of the extrusion head 400. The extrusion head 400 is fixedly connected to the inside of the anti-blocking mechanism 500 through the connection mechanism 600. A screw rod 310 is rotatably connected through the middle of the left side of the inner cavity of the material extrusion cylinder 300. A heating plate 320 is embedded inside the material extrusion cylinder 300. A driving motor 330 is fixedly connected to the left side of the material extrusion cylinder 300. A feeding cylinder 340 is fixedly connected to the left side of the top of the outer side wall of the material extrusion cylinder 300;

[0030] Please refer to again Figure 3 The anti-blocking mechanism 500 includes a connecting rod 510, a stirring rod 520, a scraping plate 530, an installation ring 540, an installation cavity 550 and a heating wire 560;

[0031] Please refer to again Figure 3 The right end of the screw rod 310 is fixedly connected to the connecting rod 510. The outer side wall of the connecting rod 510 is uniformly fixedly connected with the stirring rod 520, and the other end of the stirring rod 520 is fixedly connected to the scraping plate 530;

[0032] Please refer to again Figure 3 The right side of the material extrusion cylinder 300 is fixedly connected with the installation ring 540. An installation cavity 550 is opened inside the installation ring 540, and heating wires 560 are uniformly fixedly connected to the left and right sides of the installation cavity 550.

[0033] In summary, when the extrusion head 400 fails, start the heating wire 560. Through the heating of the heating wire 560, the temperature inside the installation cavity 550 rises, and the heat is transferred to the extrusion head 400, thereby heating the extrusion head 400. At the same time, when the screw rod 310 rotates, it drives the connecting rod 510 to rotate, causing the stirring rod 520 to rotate, driving the scraping plate 530 to rotate, scraping the inner side wall of the extrusion head 400, avoiding rubber residue, thereby preventing the rubber inside the extrusion head 400 from solidifying when the extrusion head 400 fails, avoiding blockage, facilitating the discharge of materials, and avoiding rubber residue.

[0034] Please refer to again Figure 2 The input ends of the heating plate 320, the drive motor 330 and the heating wire 560 are electrically connected to the output end of an external power supply, and the end of the output shaft of the drive motor 330 is fixedly connected to the left end of the screw rod 310.

[0035] Please refer to again Figure 3 The inner side wall of the installation ring 540 fits with the outer side wall of the extrusion head 400, and the outer side wall of the scraping plate 530 fits with the inner side wall of the extrusion head 400.

[0036] Please refer to again Figure 4, the connecting mechanism 600 includes a mounting box 610, a baffle 620, a connecting plate 630, a return spring 640, a fixing plate 650, and an L-shaped plate 660. The outer side walls of the mounting rings 540 are symmetrically and fixedly connected with the mounting boxes 610. The middle parts of the mutually remote sides of the front and rear mounting boxes 610 are slidably connected through the baffle 620. The mutually remote sides of the front and rear baffles 620 are fixedly connected with the connecting plates 630. The top and bottom of the left and right sides of the relative sides of the front and rear connecting plates 630 are fixedly connected with the return springs 640. The right part of the outer side wall of the extrusion head 400 is symmetrically and fixedly connected with the fixing plates 650. The mutually remote sides of the front and rear fixing plates 650 are fixedly connected with the L-shaped plates 660.

[0037] Please refer to again Figure 4 , the front and rear ends of the return spring 640 are respectively fixedly connected with the relative sides of the connecting plate 630 and the mounting box 610.

[0038] Please refer to again Figure 4 , inclined surfaces are provided on the right side of the baffle 620 and the left side of the L-shaped plate 660.

[0039] In summary, by pulling the connecting plate 630, the baffle 620 is moved to release the fixation of the L-shaped plate 660. The extrusion head 400 is pulled to disassemble the extrusion head 400. Then a new extrusion head 400 is installed, so that the L-shaped plate 660 is embedded inside the mounting box 610. The extrusion head 400 is squeezed, so that the inclined surface of the L-shaped plate 660 squeezes the inclined surface of the baffle 620, causing the baffle 620 to move. When the L-shaped plate 660 releases the extrusion of the baffle 620, through the reset of the return spring 640, the baffle 620 is reset to limit the L-shaped plate 660, completing the installation. It is convenient to replace extrusion heads 400 of different models, making the replacement time-saving and labor-saving, improving the replacement efficiency, and enhancing the practicality of the device.

[0040] In specific use, when a person skilled in the art uses it, the heating plate 320 is started, the driving motor 330 is started to drive the screw rod 310 to rotate, the raw materials are put into the inside of the feeding cylinder 340, heated, melted and extruded. When the extrusion head 400 fails, the heating wire 560 is started. Through the heating of the heating wire 560, the temperature inside the installation cavity 550 rises, and the heat is transferred to the extrusion head 400, thereby heating the extrusion head 400. At the same time, when the screw rod 310 rotates, it drives the connecting rod 510 to rotate, so that the stirring rod 520 rotates, driving the scraper 530 to rotate, and scraping the inner wall of the extrusion head 400 to prevent blockage. When it is necessary to replace different extrusion heads 400, the connecting plate 630 is pulled, so that the baffle 620 moves, releasing the fixation of the L-shaped plate 660. The extrusion head 400 is pulled to disassemble the extrusion head 400. Then, a new extrusion head 400 is installed, so that the L-shaped plate 660 is embedded in the installation box 610, and the extrusion head 400 is squeezed, so that the inclined surface of the L-shaped plate 660 squeezes the inclined surface of the baffle 620, causing the baffle 620 to move. When the L-shaped plate 660 releases the extrusion of the baffle 620, through the reset of the reset spring 640, the baffle 620 is reset to limit the L-shaped plate 660, and the installation is completed.

[0041] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A single screw rubber extruder for preventing material discharge from being blocked, characterized in that: The invention comprises a bottom plate (100), a support plate (200), an extrusion barrel (300), an extrusion head (400), an anti-blocking mechanism (500) and a connecting mechanism (600), wherein the support plate (200) is fixedly connected to the bottom plate (100), the extrusion barrel (300) is fixedly connected to the top of the support plate (200), the anti-blocking mechanism (500) is fixedly connected to the right side of the extrusion barrel (300), the extrusion head (400) is fixedly connected to the inside of the anti-blocking mechanism (500) through the connecting mechanism (600), a spiral rod (310) is rotatably connected to the middle of the left side of the inner cavity of the extrusion barrel (300), a heating plate (320) is embedded in the interior of the extrusion barrel (300), and a driving motor (330) is fixedly connected to the left side of the extrusion barrel (300). 0), a discharge barrel (340) is fixedly connected to the left side of the top of the outer side wall of the extrusion barrel (300), the anti-blocking mechanism (500) comprises a connecting rod (510), a stirring rod (520), a scraper (530), a mounting ring (540), a mounting cavity (550) and a heating wire (560), the right end of the spiral rod (310) is fixedly connected to the connecting rod (510), the outer side wall of the connecting rod (510) is evenly fixedly connected to the stirring rod (520), the other end of the stirring rod (520) is fixedly connected to the scraper (530), the right side of the extrusion barrel (300) is fixedly connected to the mounting ring (540), the interior of the mounting ring (540) is provided with a mounting cavity (550), and the left and right sides of the mounting cavity (550) are evenly fixedly connected to the heating wire (560).

2. A single-screw rubber extruder for preventing discharge blockage according to claim 1, characterized in that: The input ends of the heating plate (320), the driving motor (330) and the heating wire (560) are electrically connected to the output end of an external power source, and the output shaft end of the driving motor (330) is fixedly connected to the left end of the spiral rod (310).

3. The single-screw rubber extruder for preventing discharge blockage according to claim 1, characterized in that: The inner wall of the mounting ring (540) is in contact with the outer wall of the extrusion head (400), and the outer wall of the scraper (530) is in contact with the inner wall of the extrusion head (400).

4. The single-screw rubber extruder for preventing discharge blockage according to claim 1, characterized in that: The connecting mechanism (600) comprises an installation box (610), a baffle (620), a connecting plate (630), a return spring (640), a fixing plate (650) and an L-shaped plate (660); the outer wall of the installation ring (540) is symmetrically fixedly connected with the installation box (610); the middle part of the mutually distant sides of the front and rear installation boxes (610) is slidably connected with the baffle (620); the mutually distant sides of the front and rear baffles (620) are fixedly connected with the connecting plate (630); the top and bottom of the left and right sides of the opposite sides of the front and rear connecting plates (630) are fixedly connected with the return spring (640); the right part of the outer wall of the extrusion head (400) is symmetrically fixedly connected with the fixing plate (650); the mutually distant sides of the front and rear fixing plates (650) are fixedly connected with the L-shaped plate (660).

5. The single-screw rubber extruder for preventing discharge blockage according to claim 4, characterized in that: The front and rear ends of the return spring (640) are fixedly connected to the connecting plate (630) and the opposite sides of the installation box (610), respectively.

6. The single-screw rubber extruder for preventing discharge blockage according to claim 4, characterized in that: The right side of the baffle (620) and the left side of the L-shaped plate (660) are both provided with inclined surfaces.

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