Double-roller plastic mixing mill

Abstract

The utility model discloses a double-roller plastic mixing mill, which belongs to the technical field of plastic mixing mills and comprises a base, a transmission case is fixedly connected to one side of the top surface of the base, a driving case is fixedly connected to the other side of the top surface of the base, and a scraping mechanism is arranged between the transmission case and the driving case. A protective cover is hinged to the position, between the transmission box and the driving box, of the top face of the machine base, a perspective plate is hinged to the front portion of the protective cover, and two rotating rollers are rotationally connected between the transmission box and the driving box. According to the utility model, the first motor is arranged in the inner cavity of the driving box to drive the rotating rollers, and the first gear and the second gear are arranged in the transmission box to carry out transmission between the two rotating rollers; in addition, the upper protective cover is arranged between the transmission box and the driving box and above the rotating roller, so that workers are protected during plastic smelting operation, and the safety of the workers is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic refining machines, in particular to a double-roller plastic refining machine. Background Art

[0002] A double-roller plasticator is a type of mixing equipment that operates intermittently in the processing of plastics and rubber. It is also called an open mixing mill. It is a rubber mixing machine with exposed rollers used in rubber factories to prepare plasticized rubber, mixed rubber, or for hot mixing and molding. The main working parts are two hollow rollers or drilled rollers that rotate in opposite directions and inward. The two rollers are generally the same size and rotate relative to each other at different speeds. The raw rubber or rubber compound is drawn into the gap between the two rollers as the rollers rotate, and is subjected to strong shearing to achieve the purpose of plasticating or mixing.

[0003] After searching, the utility model patent with announcement number CN220075206U discloses a double-roller plastic refining machine, which includes: a frame; two rotating shafts, both of which are rotatably mounted on the frame; two rollers, both of which are fixedly sleeved on the two rotating shafts; a driving motor, which is fixedly mounted on one side of the frame; a first gear, which is fixedly sleeved on the output shaft of the driving motor; a second gear, which is fixedly sleeved on one of the rotating shafts, and the second gear is meshed with the first gear; a third gear, which is fixedly sleeved on one of the rotating shafts, and the third gear is meshed with the second gear; two cleaning mechanisms, both of which are arranged on the frame; the double-roller plastic refining machine has the advantages of active cleaning function of the rollers, more convenient operation, and more convenient material collection.

[0004] However, the above patent has the following disadvantages: the two rollers and the two gears are exposed to the outside, which may bring danger to the operator when in use; in addition, the arc scraper can be used to clean the bottom of the roller, but it is not convenient to collect the cleaned debris. Therefore, we propose a double roller plastic purifying machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a double-roller plastic refining machine.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A double-roller plastic refining machine, comprising a machine base. One side of the top surface of the machine base is fixedly connected with a transmission box, and the other side of the top surface of the machine base is fixedly connected with a drive box. A scraping mechanism is arranged between the transmission box and the drive box. A protective cover is hinged on the top surface of the machine base and located between the transmission box and the drive box. A perspective plate is hinged to the front of the protective cover. Two rollers are rotatably connected between the transmission box and the drive box. A first motor is fixedly installed in the inner cavity of the drive box. The output shaft of the first motor is connected to one end of the roller shaft. The other end of one roller shaft extends into the inner cavity of the transmission box and is fixedly sleeved with a second gear. The other end of the other roller shaft extends into the inner cavity of the transmission box and is fixedly sleeved with a first gear. The first gear and the second gear are meshed with each other.

[0008] As a preferred solution of the present utility model, the scraping mechanism includes a limiting rod fixedly sleeved between the transmission box and the drive box and a reciprocating lead screw rotatably connected between the transmission box and the drive box. A second motor is fixedly installed in the inner cavity of the drive box. The output shaft of the second motor is connected to the end of the reciprocating lead screw. A moving seat is threadedly sleeved on the outer side of the reciprocating lead screw. The end of the moving seat is movably sleeved on the limiting rod. A collection box is sleeved on the top of the moving seat. A scraping plate is arranged in the middle of the collection box. Collection grooves are respectively arranged on both sides of the top surface of the collection box.

[0009] As a preferred solution of the present utility model, electric push rods are fixedly installed in the inner cavities of the transmission box and the drive box. The ends of the two electric push rods extend above the two rollers and are fixedly connected with limiting seats. The bottom ends of the limiting seats are respectively in contact with the top surfaces of the two rollers.

[0010] As a preferred solution of the present utility model, a card slot is opened on the bottom surface of the collection box. A card seat is arranged on the top surface of the moving seat. The top end of the card seat is movably sleeved into the inner cavity of the card slot. The side surface of the card seat is in contact with the inner wall of the card slot.

[0011] As a preferred solution of the present utility model, a collection box is placed on the top surface of the machine base and below the rollers. Handle parts are respectively arranged on both sides of the collection box.

[0012] As a preferred solution of the present utility model, a lifting handle is fixedly installed at the front of the protective cover, and a handle is fixedly installed at the front of the perspective plate.

[0013] As a preferred solution of the present utility model, a control panel is fixedly installed on the front of the drive box. The control panel is electrically connected to the electric push rod, the first motor and the second motor respectively.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] (1) In this utility model, the first motor is installed in the inner cavity of the drive box to drive the rotating roller, the first gear and the second gear are arranged in the transmission box to drive between the two rotating rollers, and an upper protective cover is arranged between the transmission box and the drive box and above the rotating roller to protect the staff during the plastic refining operation and ensure the safety of the staff.

[0016] (2) In this utility model, the threaded fit between the reciprocating lead screw and the moving seat drives the moving seat and the collection box to move. The scraper on the collection box clears the residual raw materials on the rotating roller, and the cleared raw materials are collected through the collection groove. The collection box can be detached from the moving seat through the cooperation of the card slot and the card seat, so as to process the raw materials collected in the collection groove, and it has good practicability. Brief Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of this utility model;

[0018] Figure 2 is the exploded view of the overall structure of this utility model;

[0019] Figure 3 is the internal schematic diagram of the drive box of this utility model;

[0020] Figure 4 is the internal schematic diagram of the transmission box of this utility model;

[0021] Figure 5 is the structural schematic diagram of the collection box of this utility model.

[0022] Description of the reference numerals in the drawings:

[0023] 1, machine base; 2, transmission box; 3, drive box; 4, scraping mechanism; 5, rotating roller; 6, protective cover; 7, perspective plate; 8, lifting hand; 9, handle; 10, collection box; 11, buckle hand; 12, first motor; 13, first gear; 14, second gear; 15, limiting rod; 16, reciprocating lead screw; 17, second motor; 18, moving seat; 19, collection box; 20, collection groove; 21, scraper; 22, card slot; 23, card seat; 24, control panel; 25, electric push rod; 26, limiting seat. Detailed Embodiments

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

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", "top / bottom end", 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, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, terms such as "installation", "provided with", "sheathed / connected", "connection", etc. should be understood in a broad sense. For example, "connection" 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] Embodiment:

[0028] Please refer to Figures 1-5 , a double-roll plastic refining machine, which includes a machine base 1. One side of the top surface of the machine base 1 is fixedly connected with a transmission box 2, and the other side of the top surface of the machine base 1 is fixedly connected with a driving box 3. A scraping mechanism 4 is arranged between the transmission box 2 and the driving box 3. A protective cover 6 is hinged on the top surface of the machine base 1 and located between the transmission box 2 and the driving box 3. A perspective plate 7 is hinged to the front part of the protective cover 6. Two rollers 5 are rotatably connected between the transmission box 2 and the driving box 3. A first motor 12 is fixedly installed in the inner cavity of the driving box 3. The output shaft of the first motor 12 is connected to one end of the rotating shaft of a roller 5. The other end of the rotating shaft of one roller 5 extends into the inner cavity of the transmission box 2 and is fixedly sleeved with a second gear 14. The other end of the rotating shaft of the other roller 5 extends into the inner cavity of the transmission box 2 and is fixedly sleeved with a first gear 13. The first gear 13 and the second gear 14 mesh with each other.

[0029] In this embodiment, the outer diameters of the second gear 14 and the first gear 13 are different, ensuring that the two rollers 5 rotate at different speeds. In addition, hot air can be introduced into the two rollers 5 to heat the plastic refining material.

[0030] Specifically, please refer to Figures 1 to 5, the scraping mechanism 4 includes a limiting rod 15 fixedly sleeved between the transmission box 2 and the driving box 3 and a reciprocating lead screw 16 rotatably connected between the transmission box 2 and the driving box 3. A second motor 17 is fixedly installed in the inner cavity of the driving box 3. The output shaft of the second motor 17 is connected to the end of the reciprocating lead screw 16. A moving seat 18 is threadedly sleeved on the outer side of the reciprocating lead screw 16. The end of the moving seat 18 is movably sleeved on the limiting rod 15. A collection box 19 is sleeved on the top of the moving seat 18. A scraping plate 21 is arranged in the middle of the collection box 19. Collection grooves 20 are respectively arranged on both sides of the top surface of the collection box 19.

[0031] In this embodiment, the limiting of the moving seat 18 is achieved by the movable sleeve between the limiting rod 15 and the moving seat 18, so that the moving seat 18 can only move along the axial direction of the reciprocating lead screw 16. In addition, the outer diameter of the top end of the scraping plate 21 is adapted to the shape of the bottoms of the two rollers 5, ensuring that the scraping plate 21 can scrape the bottoms of the two rollers 5.

[0032] Specifically, please refer to Figure 3 , electric push rods 25 are fixedly installed in the inner cavities of the transmission box 2 and the driving box 3. The ends of the two electric push rods 25 extend above the two rollers 5 and are fixedly connected with limiting seats 26. The bottom ends of the limiting seats 26 are respectively in contact with the top surfaces of the two rollers 5.

[0033] In this embodiment, the position of the limiting seat 26 is adjusted by the electric push rod 25, and the position of the plastic refining on the roller 5 is adjusted by the limiting seat 26.

[0034] Specifically, please refer to Figure 2 and Figure 4 , a clamping groove 22 is formed in the bottom surface of the collection box 19. A clamping seat 23 is arranged on the top surface of the moving seat 18. The top end of the clamping seat 23 is movably sleeved into the inner cavity of the clamping groove 22, and the side surface of the clamping seat 23 is in contact with the inner wall of the clamping groove 22.

[0035] In this embodiment, the collection box 19 is installed on the moving seat 18 through the cooperation of the clamping seat 23 and the clamping groove 22.

[0036] Specifically, please refer to Figure 2 , a collection box 10 is placed on the top surface of the machine base 1 and below the roller 5. Handle grips 11 are respectively arranged on both sides of the collection box 10.

[0037] In this embodiment, the material refined by the roller 5 is received by the collection box 10, and the collection box 10 is carried by the handle grips 11.

[0038] Specifically, please refer to Figure 1 , a lifting handle 8 is fixedly installed at the front part of the protective cover 6, and a handle 9 is fixedly installed at the front part of the transparent plate 7.

[0039] In this embodiment, the protective cover 6 is lifted by lifting the lifting handle 8, and the perspective plate 7 is opened by using the handle 9.

[0040] Specifically, please refer to Figures 1 to 4 , a control panel 24 is fixedly installed on the front surface of the drive box 3, and the control panel 24 is electrically connected to the electric push rod 25, the first motor 12, and the second motor 17 respectively.

[0041] In this embodiment, the control panel 24 is used to control the electric push rod 25, the first motor 12, and the second motor 17.

[0042] Working principle: When in use, first cover the protective cover 6, start the first motor 12 to drive a roller 5 and the second gear 14 to rotate, drive the two rollers 5 to rotate differentially inward through the meshing transmission between the second gear 14 and the first gear 13, then open the perspective plate 7 and put the raw materials to be plasticized between the two rollers 5, use the two rollers 5 to plasticize the raw materials, the plasticized materials fall into the collection box 10, then start the second motor 17 to drive the reciprocating screw rod 16 to rotate, drive the moving seat 18 and the collection box 19 to reciprocate along the axial direction of the reciprocating screw rod 16 by the thread fit between the reciprocating screw rod 16 and the moving seat 18, use the scraper 21 on the collection box 19 to scrape off the raw materials adhered to the outside of the roller 5, and make the scraped raw materials collected in the collection groove 20, finally hold the lifting handle 8 and lift the protective cover 6 upward, take the collection box 10 off the machine base 1, and pull the collection box 19 outward to detach the collection box 19 from the moving seat 18, so as to clean the waste materials collected in the collection groove 20, that's all.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A twin-roller plastic refining machine, comprising a machine base (1), characterized in that: A transmission box (2) is fixedly connected to one side of the top surface of the machine base (1), a drive box (3) is fixedly connected to the other side of the top surface of the machine base (1), a scraper mechanism (4) is provided between the transmission box (2) and the drive box (3), a protective cover (6) is hingedly connected to the top surface of the machine base (1) and located between the transmission box (2) and the drive box (3), a perspective plate (7) is hingedly connected to the front of the protective cover (6), and two rollers (5) are rotatably connected between the transmission box (2) and the drive box (3) A first motor (12) is fixedly installed in the inner cavity of the driving box (3); the output shaft of the first motor (12) is connected to one end of a rotating shaft of a roller (5); the other end of the rotating shaft of one of the rollers (5) extends to the inner cavity of the transmission box (2) and is fixedly sleeved with a second gear (14); the other end of the rotating shaft of the other roller (5) extends to the inner cavity of the transmission box (2) and is fixedly sleeved with a first gear (13); the first gear (13) and the second gear (14) are meshed with each other.

2. A double-roller plastic purifying machine according to claim 1, characterized in that: The scraper mechanism (4) comprises a limit rod (15) fixedly sleeved between the transmission box (2) and the drive box (3) and a reciprocating screw rod (16) rotatably connected between the transmission box (2) and the drive box (3); a second motor (17) is fixedly installed in the inner cavity of the drive box (3); the output shaft of the second motor (17) is connected to the end of the reciprocating screw rod (16); a movable seat (18) is sleeved on the outer side of the reciprocating screw rod (16) by a thread; the end of the movable seat (18) is movably sleeved with the limit rod (15); a collection box (19) is sleeved on the top of the movable seat (18); a scraper (21) is provided in the middle of the collection box (19); and collection grooves (20) are respectively provided on both sides of the top surface of the collection box (19).

3. A double-roller plastic purifying machine according to claim 2, characterized in that: The inner cavities of the transmission box (2) and the drive box (3) are both fixedly mounted with electric push rods (25), the ends of the two electric push rods (25) extend above the two rollers (5) and are fixedly connected to the limit seats (26), and the bottom ends of the limit seats (26) are respectively in contact with the top surfaces of the two rollers (5).

4. A double-roller plastic purifying machine according to claim 2, characterized in that: The bottom surface of the collection box (19) is provided with a card slot (22), the top surface of the movable seat (18) is provided with a card seat (23), the top end of the card seat (23) is movably sleeved into the inner cavity of the card slot (22), and the side surface of the card seat (23) is in contact with the inner wall of the card slot (22).

5. A double-roller plastic purifying machine according to claim 1, characterized in that: A collection box (10) is placed on the top surface of the machine base (1) and below the rotating roller (5), and buckles (11) are respectively provided on both sides of the collection box (10).

6. A double-roller plastic purifying machine according to claim 1, characterized in that: A lifting handle (8) is fixedly mounted on the front of the protective cover (6), and a handle (9) is fixedly mounted on the front of the perspective plate (7).

7. A double-roller plastic purifying machine according to claim 3, characterized in that: A control panel (24) is fixedly mounted on the front of the driving box (3), and the control panel (24) is electrically connected to the electric push rod (25), the first motor (12) and the second motor (17) respectively.

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