Auxiliary mixing device of open mill

Abstract

The utility model discloses an auxiliary mixing device of an open mill, and belongs to the field of open mills. An auxiliary mixing device of an open mill comprises a machine body, a pretreatment assembly is installed at the top of the machine body and comprises a pretreatment box and a carrier plate installed at the bottom of the pretreatment box, supporting rods are arranged at the bottom of the carrier plate, and two rotating shafts installed in parallel and extrusion rollers connected to the rotating shafts in a sleeving mode are arranged in the pretreatment box; scraping mechanisms are symmetrically arranged in the pretreatment box, each scraping mechanism comprises a mounting plate connected with the bottom of the pretreatment box, the middle of each mounting plate is in threaded connection with a second screw rod, a hanging plate is rotatably mounted at the bottom of each second screw rod, and a plurality of arc-shaped scraping teeth are arranged at the bottom of each hanging plate; according to the utility model, the scraping mechanisms are symmetrically arranged in the pretreatment box, so that materials adhered to the two extrusion rollers are scraped off through the scraping mechanisms, and the scraped-off materials are guided into the space between the two rollers through the feed opening, so that the materials are convenient to clean and recycle.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of open mill especially relates to a supplementary mixing device of open mill. BACKGROUND

[0002] The open mill is a kind of mechanical equipment for the processing of high molecular materials such as rubber, plastic, etc., mainly used in the process of mixing, plasticizing, tabletting, etc. of materials. It shears, extrudes and mixes materials through two relatively rotating rollers to make the materials evenly dispersed and plasticized.

[0003] Through the search, the patent with Chinese patent application number 202121955114.3 discloses a supplementary mixing device of open mill, which comprises an open mill main body and a spacing adjustment system, the spacing adjustment system is arranged at the front side of the two ends of the open mill main body, further comprising: pressing rollers, two pressing rollers are respectively arranged on the inner side of the middle part of the open mill main body and can rotate around their own axes;Material receiving plate, the material receiving plate is fixedly arranged on the inner side of the middle part of the open mill main body along the horizontal direction and is located below the two pressing rollers;Pretreatment assembly, the pretreatment assembly is arranged in the middle part of the open mill main body and is located above the two pressing rollers. The supplementary mixing device of open mill can effectively mix the materials to be mixed in advance, can output the material body with relatively uniform shape to the pressing rollers below at the same time, avoid the damage of the equipment caused by the large pressure on the pressing rollers, improve the mixing efficiency and reduce the labor intensity of workers;

[0004] Although the above-mentioned patent can realize the pretreatment of the material to be mixed, when the material is extruded and mixed by the mixing roller, the material is easy to adhere to the mixing roller, which increases the difficulty of cleaning the mixing roller and makes it inconvenient to recycle the material adhered to the mixing roller, which is easy to cause waste.

[0005] Therefore, it is urgent to provide a supplementary mixing device of open mill to solve the above-mentioned problems. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the problem that the material adhered to the mixing roller is inconvenient to clean and recycle in the prior art, and provides a supplementary mixing device of open mill.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] The utility model provides an auxiliary mixing device of open mill, including the body, be equipped with two roller and the pitch adjusting mechanism for adjusting the pitch between two roller on the body, be equipped with the receiving tray below the roller on the body, the top of body is equipped with the pretreatment subassembly, the pretreatment subassembly includes the pretreatment box and installs the carrier plate on the bottom of pretreatment box, the bottom of carrier plate is equipped with the support rod, the inside of pretreatment box is equipped with two rotating shafts of parallel installation and the extruding roller of sleeve joint on the rotating shaft, the inside of pretreatment box is equipped with the scraping mechanism symmetrically, the scraping mechanism includes the mounting plate connected with the bottom of pretreatment box, the second screw is screw -threaded connection in the middle part of mounting plate, the bottom of second screw is rotatably installed with the hanging material board, the bottom of hanging material board is equipped with a plurality of arc scraping teeth, the back of scraping tooth is equipped with the scraping strip.

[0009] As the preferred technical scheme of the present application, one end of the rotating shaft is connected to the output end of the motor through a shaft coupling, and the one end of the rotating shaft located inside the transmission box is provided with a gear, and the gears of the two rotating shafts are meshed and connected.

[0010] As the preferred technical scheme of the present application, the bottom end of the pretreatment box is provided with a discharge hopper.

[0011] As the preferred technical scheme of the present application, the hanging material board and the mounting plate are further provided with telescopic rods located on both sides of the second screw.

[0012] As the preferred technical scheme of the present application, the bottom end of the scraping tooth is provided with a soft leather sleeve.

[0013] As the preferred technical scheme of the present application, the top of the pretreatment box is provided with a pressing mechanism, the pressing mechanism includes a support frame mounted on the pretreatment box, a first screw is screw -threaded connected in the middle part of the support frame, a pressing plate is rotatably connected to the bottom end of the first screw, and a pressing roller is rotatably mounted on the inner side of the pressing plate.

[0014] As the preferred technical scheme of the present application, the top of the pressing plate is provided with guide rods penetrating through the top of the support frame on both sides of the first screw.

[0015] Compared with the prior art, the auxiliary mixing device of the open mill has the following advantages:

[0016] 1、The auxiliary mixing device of open mill, through the inside of pretreatment box is equipped with the scraping mechanism symmetrically, realizes through the scraping mechanism and falls off the material adhered on two extruding rollers, and the material that falls off is introduced between two roller through the discharge port, and the material is conveniently cleaned and recycled, and waste is reduced, and the problem that the material adhered on the mixing roller is inconvenient to clean and recycle in the prior art is solved.

[0017] 2. The auxiliary mixing device of the open mill realizes extrusion of the material located between the two extrusion rollers by the compression roller through the compression mechanism on the top of the pretreatment box, can improve the mixing efficiency of the material by the extrusion roller, and reduces the material jamming, solves the problems of low mixing efficiency and easy material jamming in the prior art when mixing the material. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a whole structure schematic view of the utility model;

[0019] Figure 2 It is a structure schematic view of the scraping mechanism of the utility model;

[0020] Figure 3 It is a structure schematic view of the utility model Figure 2 A part of the utility model;

[0021] Figure 4 It is a structure schematic view of the compression mechanism of the utility model.

[0022] In the drawing:

[0023] 1, machine body; 2, spacing adjusting mechanism; 3, support rod; 4, carrier plate; 5, transmission box; 6, motor; 7, support frame; 8, guide rod; 9, first screw; 10, extrusion roller; 11, hopper; 12, roller; 13, receiving tray; 14, pretreatment box; 15, material hanging plate; 16, telescopic rod; 17, mounting plate; 18, second screw; 19, scraping tooth; 20, scraping strip; 21, soft leather cover; 22, compression plate; 23, compression roller. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model; Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments; Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model. EMBODIMENT

[0025] Referring to Figures 1-4 An auxiliary mixing device of an open mill, comprising a machine body 1, two rollers 12 are arranged on the machine body 1, and a spacing adjusting mechanism 2 for adjusting the spacing between the two rollers 12 is arranged on the machine body 1; a receiving tray 13 is arranged below the rollers 12 on the machine body 1, which is used to receive the material falling during mixing, facilitating recycling after collection;

[0026] The top of the machine body 1 is provided with a pretreatment assembly, which comprises a pretreatment box 14 and a carrier plate 4 installed at the bottom of the pretreatment box 14. The bottom of the carrier plate 4 is provided with a support rod 3, which is connected to the top of the machine body 1 through the support rod 3. The inside of the pretreatment box 14 is provided with two parallel installed rotating shafts and extrusion rollers 10 sleeved on the rotating shafts. One end of the rotating shaft is connected to the output end of the motor 6 through a shaft coupling. The motor 6 drives the extrusion rollers 10 to rotate. One end of the rotating shaft is located inside the transmission box 5 and is provided with a gear. The gears of the two rotating shafts are meshed and connected. When the motor 6 rotates, the two extrusion rollers 10 rotate in opposite directions through the gears, and the placed material is pretreated. It is more convenient to mix through the roller 12. After being extruded by the two extrusion rollers 10, the material can be uniformly formed. The bottom end of the pretreatment box 14 is provided with a discharge hopper 11, which facilitates the introduction of the treated material between the two roller 12.

[0027] Referring to Figure 2 and Figure 3 Further, the inside of the pretreatment box 14 is symmetrically provided with a scraping mechanism. The scraping mechanism can scrape the material adhered to the two extrusion rollers 10. It is more labor-saving and convenient to use. The scraping mechanism comprises an installation plate 17 connected to the bottom of the pretreatment box 14. The middle part of the installation plate 17 is threadedly connected with a second screw rod 18. The bottom of the second screw rod 18 is rotatably provided with a hanging plate 15. The bottom of the hanging plate 15 is provided with a plurality of arc-shaped scraping teeth 19. The scraping teeth 19 can fit and scrape the grooves on the extrusion rollers 10. When the extrusion rollers 10 rotate, the scraping teeth 19 can contact the outer surface of the extrusion rollers 10. The material adhered to the extrusion rollers 10 can be scraped off by the scraping teeth 19. The hanging plate 15 and the installation plate 17 are further provided with telescopic rods 16 located on both sides of the second screw rod 18. When the hanging plate 15 is raised and lowered by rotating the second screw rod 18, the stability of the hanging plate 15 and the scraping teeth 19 thereon is maintained, and the extrusion rollers 10 are conveniently fitted.

[0028] The bottom end of the scraping tooth 19 is provided with a soft leather sleeve 21. When the end of the scraping tooth 19 contacts the surface of the extrusion roller 10, the soft leather sleeve 21 can effectively protect the outer surface of the extrusion roller 10 and reduce the damage to the surface of the extrusion roller 10 during scraping. The back of the scraping tooth 19 is provided with a scraping strip 20. The scraping strip 20 can scrape the convex surface of the extrusion roller 10. It is more convenient to scrape, and the adhesion of the material to the outer surface of the extrusion roller 10 is effectively reduced.

[0029] Referring to Figure 4Further, the top of the pretreatment box 14 is provided with a pressing mechanism, which comprises a support frame 7 mounted on the pretreatment box 14, a first screw rod 9 threadedly connected to the middle portion of the support frame 7, a pressing plate 22 rotatably connected to the bottom end of the first screw rod 9, guide rods 8 penetrating through the top of the support frame 7 and located on both sides of the top of the pressing plate 22, and a pressing roller 23 rotatably mounted on the inner side of the pressing plate 22. When the pressing roller 23 is lowered by rotating the first screw rod 9, the stability of the pressing roller 23 during the lowering process can be improved by means of the guide rods 8 on both sides. The material between the two extrusion rollers 10 can be extruded by the pressing roller 23, so that the mixing efficiency of the material by the extrusion rollers 10 can be improved, and the material jamming can be reduced.

[0030] Specifically, in the working process of the auxiliary mixing device of the open mill, the material is introduced between the two extrusion rollers 10, and the material is extruded under the rotating action of the extrusion rollers 10. After the extrusion, the material forms a relatively uniform material aggregate and enters the two roller cylinders 12 for mixing. When the extrusion rollers 10 rotate, the material adhered to the extrusion rollers 10 is scraped off by the scraping strips 20 and the scraping teeth 19 located on one side of the extrusion rollers 10 and in contact with the convex surface and the concave groove on the extrusion rollers 10, so as to reduce the adhesion of the material on the extrusion rollers 10. When the material is pretreated by the extrusion rollers 10, the pressing roller 23 is lowered by rotating the first screw rod 9, and the material between the two extrusion rollers 10 is extruded by the pressing roller 23, so as to improve the pretreatment efficiency.

[0031] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. An auxiliary mixing device for an open mill, comprising a body (1), wherein the body (1) is provided with two rollers (12) and a spacing adjustment mechanism (2) for adjusting the distance between the two rollers (12), and a receiving tray (13) is provided on the body (1) below the rollers (12), characterized in that, The top of the machine body (1) is equipped with a pretreatment component, which includes a pretreatment box (14) and a carrier plate (4) installed at the bottom of the pretreatment box (14). The bottom of the carrier plate (4) is provided with a support rod (3). The interior of the pretreatment box (14) is provided with two parallel rotating shafts and a squeezing roller (10) sleeved on the rotating shafts. The interior of the pretreatment box (14) is symmetrically provided with a scraping mechanism. The scraping mechanism includes a mounting plate (17) connected to the bottom of the pretreatment box (14). The middle of the mounting plate (17) is threaded with a second screw (18). The bottom of the second screw (18) is rotatably mounted with a hanging plate (15). The bottom of the hanging plate (15) is provided with multiple arc-shaped scraping teeth (19). The back of the scraping teeth (19) is provided with a scraping strip (20).

2. The auxiliary mixing device for an open mill according to claim 1, characterized in that, One end of the rotating shaft is connected to the output end of the motor (6) via a coupling. One end of the rotating shaft is located inside the transmission box (5) and is equipped with a gear. The gears of the two rotating shafts are meshed together.

3. The auxiliary mixing device for an open mill according to claim 1, characterized in that, The pretreatment box (14) is equipped with a feeding hopper (11) at the bottom.

4. The auxiliary mixing device for an open mill according to claim 1, characterized in that, Telescopic rods (16) located on both sides of the second screw (18) are also provided between the hanging plate (15) and the mounting plate (17).

5. An auxiliary mixing device for an open mill according to claim 3, characterized in that, The scraper tooth (19) is provided with a soft leather sleeve (21) at its bottom end.

6. The auxiliary mixing device for an open mill according to claim 1, characterized in that, The top of the pretreatment box (14) is provided with a pressing mechanism. The pressing mechanism includes a support frame (7) installed on the pretreatment box (14). A first screw (9) is threadedly connected to the middle of the support frame (7). A pressure plate (22) is rotatably connected to the bottom end of the first screw (9). A pressure roller (23) is rotatably installed on the inner side of the pressure plate (22).

7. An auxiliary mixing device for an open mill according to claim 6, characterized in that, The top of the pressure plate (22) is provided with guide rods (8) that pass through the top of the support frame (7) on both sides of the first screw (9).

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