Preforming machine

Abstract

The utility model discloses a preforming machine which is characterized by comprising an extrusion mechanism and a preforming bin, the extrusion mechanism is mounted in the preforming bin, a rotating shaft mounting hole is formed in the top of the preforming bin, at least one feeding hole is formed in the side wall of the preforming bin, a first discharging hole protruding inwards is formed in the bottom of the preforming bin, a material outlet is formed in the hole wall of the first discharging hole, and an extrusion track is formed by the first discharging hole and the side wall of the preforming bin; and a wheel roller of the extrusion mechanism is positioned in the extrusion track and can rotate along the extrusion track. The method has the beneficial effects that the use of adhesives can be reduced, the material viscosity is increased, the net content of materials in the cold-pressed balls is increased, and the production cost of the cold-pressed balls is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cold-pressed ball pressing technology, in particular to a preforming machine. Background Art

[0002] With the rapid development of industry, a large number of by-products are produced in many industries, including return ore powder, return powder, slag, blue powder, dust ash and other materials. In addition, a large amount of powder will be produced in the process of coke production and crushing. In order to reduce the impact on the ecological environment and achieve sustainable development of resources, it is becoming more and more important to utilize the above materials as resources. The original intention of the utility model is to use cold pressing ball technology. The cold pressing ball process is a processing process for making the above materials and other materials into block materials that can meet the needs of smelting, that is, under a certain pressure, the powder material is pressed in the model to become a block material with a certain shape, size and density. Therefore, cold pressing ball technology has been widely used in non-ferrous metallurgy, coal industry, chemical industry, cement, refractory materials, building materials and other fields.

[0003] When the material is made into cold-pressed balls, an appropriate adhesive is added to increase the viscosity of the material. Too little adhesive will affect the quality of the cold-pressed balls, and too much adhesive will increase the production cost of the cold-pressed balls. Therefore, how to reduce the use of adhesive while ensuring the quality of the cold-pressed balls has become a hot topic in research. Utility Model Content

[0004] The utility model aims to provide a preforming machine which can ensure the quality of cold-pressed balls and reduce the use of adhesives, thereby reducing the production cost of cold-pressed balls.

[0005] A preforming machine, the key of which is that it includes an extrusion mechanism and a preforming bin;

[0006] The extrusion mechanism is installed inside the preforming bin, a rotating shaft installation hole is opened on the top of the preforming bin, at least one feeding hole is opened on the side wall, and a first discharge hole protruding inward is arranged at the bottom, a material outlet is arranged on the hole wall of the first discharge hole, and the first discharge hole and the side wall of the preforming bin form an extrusion track; the wheel roller of the extrusion mechanism is located in the extrusion track and can rotate along the extrusion track.

[0007] The extrusion mechanism includes a roller bracket, a bracket connecting plate is installed on the roller bracket, at least one roller fixing frame is fixed to the lower end surface of the bracket connecting plate, the roller fixing frame is connected to the roller via a rocker, and the roller rotates along the extrusion track.

[0008] The rollers in the extrusion mechanism extrude the material back and forth, and by applying pressure to the material, the material is more fully fused, the viscosity of the material is increased, the density of the material is improved, and a good foundation is provided for subsequent cold-pressed ball forming. After the material is preformed, the quality of the cold-pressed ball forming is ensured while the dosage of the adhesive is reduced, thereby reducing the production cost of the cold-pressed ball. At the same time, the number of rollers is set according to the number of extrusions required.

[0009] The feed holes are equally spaced on the side wall of the preforming bin, and the material is added through the feed holes at different positions, so that the material rolling time can be controlled.

[0010] The material outlet is directly opposite to the first feed inlet in the feed hole, and a transmission device is arranged directly below the material outlet.

[0011] The feed hole can add materials into the preforming bin, and the material rolling situation can be checked in real time. The materials in the preforming bin are squeezed by the wheel rolling, which can increase the viscosity and density of the materials. When the materials are squeezed, the materials can fall onto the transmission device through the material outlet, and the transmission device can transmit the materials to the next processing equipment to realize mechanized operation.

[0012] The material composition and requirements are different, and the number of extrusions required in the preforming step is also different. Therefore, by adding materials into the preforming bin from the feed holes at different positions, the number of extrusions of the added materials can be controlled, and a variety of cold-pressed ball production can be achieved.

[0013] A second transmission rod is fixed to the upper end surface of the bracket connecting plate, and the second transmission rod is connected to the power mechanism through the rotating shaft mounting hole.

[0014] The power mechanism drives the second transmission rod to rotate, and the second transmission rod drives the entire extrusion mechanism to rotate, thereby realizing the rotation of the wheel roller along the extrusion track.

[0015] Symmetrical claw arm fixing frames are fixed on both sides of the bracket connecting plate, and the claw arm fixing frames are connected with claw arm mechanisms.

[0016] The claw arm mechanism comprises a claw arm, the upper end of which is fixed to the claw arm fixing frame via a cover plate; the lower end of the claw arm is fixed with a stirring blade via bolts, and the stirring blade is perpendicular to the extrusion track.

[0017] The stirring blades on the claw arm mechanism can scrape the material on the extrusion track in the preforming bin to help loosen the material, so that the material state changes from loose to compact and then to loose. Such repeated operations can help the material to blend better, better improve the material viscosity, and increase the material density.

[0018] Because the stirring blades are kept at a certain distance from the extrusion track, it can ensure that a certain amount of material is retained on the extrusion track, prevent the extrusion track from being scratched by the wheels, and reduce the failure rate of the equipment.

[0019] An L-shaped scraper is also fixed on the wheel roller fixing frame, and the L-shaped scraper is parallel to the wheel roller surface.

[0020] The L-shaped scraper can scrape off the sticky materials on the roller, preventing the materials from sticking to the roller and preventing the materials from remaining.

[0021] A bearing fixing groove is installed on the top surface of the preforming bin, and the center of the bearing fixing groove coincides with the center of the rotating shaft installation hole.

[0022] A double-row cylindrical roller bearing is fixedly sleeved on the second transmission rod. The double-row cylindrical roller bearing is installed in a bearing fixing groove, and the outer diameter of the double-row cylindrical roller bearing is adapted to the bearing fixing groove.

[0023] The power mechanism includes a second bevel gear fixedly sleeved on the second transmission rod, the second bevel gear and the first bevel gear form a vertical transmission structure, and the first bevel gear is connected to a motor.

[0024] The motor converts electrical energy into kinetic energy, drives the first transmission rod to transmit, and drives the second transmission rod to rotate in combination with the vertical transmission structure, thereby driving the roller to rotate along the extrusion track to extrude the material.

[0025] Beneficial effects: It can reduce the use of adhesives, increase material viscosity, improve material density, increase the net content of materials in cold-pressed balls, and reduce the production cost of cold-pressed balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a three-dimensional schematic diagram of the general assembly of the utility model;

[0027] Figure 2 This is a schematic diagram of the general assembly plan of the utility model;

[0028] Figure 3 It is a three-dimensional schematic diagram of the extrusion mechanism;

[0029] Figure 4 It is a plane schematic diagram of the extrusion mechanism;

[0030] Figure 5 It is a three-dimensional schematic diagram of the rolling support;

[0031] Figure 6 It is a three-dimensional schematic diagram of the claw arm mechanism;

[0032] Figure 7 It is a three-dimensional schematic diagram of the preforming bin;

[0033] Figure 8It is a schematic diagram of the three-dimensional AA section of the preformed bin;

[0034] Fig. 9 It is a schematic diagram of the three-dimensional BB section of the preforming bin;

[0035] Fig.10 It is a three-dimensional schematic diagram of a double-row cylindrical roller bearing. DETAILED DESCRIPTION

[0036] The specific implementation manner and working principle of the utility model are further described in detail below with reference to the accompanying drawings.

[0037] like Figure 1 , Figure 2 As shown, a preforming machine is composed of a power mechanism 1, an extrusion mechanism 2, a preforming bin 3 and a conveying device 4, etc.; wherein the extrusion mechanism 2 is arranged inside the preforming bin 3, and the extrusion mechanism 2 is connected to the power mechanism 1 located outside the preforming bin 3, and the power mechanism 1 can transmit power to the extrusion mechanism 2, so that the extrusion mechanism 2 moves inside the preforming bin 3 to extrude the material; the conveying device 4 is arranged directly below the preforming bin 3 to transfer the extruded material to the next process equipment.

[0038] like Figure 1 , Figure 2 As shown, the power mechanism 1 includes a motor 1-1, which is connected to a reducer 1-3 via a coupling 1-2; the reducer 1-3 is connected to a first transmission rod 1-5 via a curved coupling 1-4;

[0039] The first transmission rod 1-5 is connected to the first gear 1-6, driving the first gear 1-6 to rotate, and the first gear 1-6 is a bevel gear; a second gear 1-7 is arranged above the preforming bin 3, and the second gear 1-7 is a bevel gear. The first gear 1-6 is meshed with the second gear 1-7, driving the second gear 1-7 to rotate; the second gear 1-7 is fixedly mounted on the second transmission rod 2-1-2 of the extrusion mechanism 2.

[0040] like Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the extrusion mechanism 2 includes a second transmission rod 2-1-2, a bracket connecting plate 2-1-1, etc. The second transmission rod 2-1-2 extends out of the preforming bin 3, and the second gear 1-7 is fixedly sleeved on the extended end of the second transmission rod 2-1-2. The second transmission rod 2-1-2 is fixed to the upper end surface of the bracket connecting plate 2-1-1, and the second transmission rod 2-1-2 is also fixedly sleeved with a double-row cylindrical roller bearing 5, which is used to install the second transmission rod 2-1-2 on the preforming bin 3;

[0041] The lower end surface of the bracket connecting plate 2-1-1 is fixed with two wheel roller fixing frames 2-1-3, and the wheel roller fixing frames 2-1-3 are connected to the wheel roller 2-2 through the rocker 2-4; the wheel roller 2-2 rotates along the extrusion track 3-6 set in the preforming bin 3;

[0042] An L-shaped scraper 2-1-4 is also fixed on the wheel roller fixing frame 2-1-3, and the L-shaped scraper 2-1-4 is parallel to the surface of the wheel roller 2-2;

[0043] Symmetrical claw arm fixing frames 2-1-5 are fixed on both sides of the bracket connecting plate 2-1-1; the claw arm fixing frames 2-1-5 are connected to the upper end of the claw arm 2-3-1 through a cover plate 2-3-3; the lower end of the claw arm 2-3-1 is fixed with a stirring blade 2-3-2 by bolts, and the stirring blade 2-3-2 is perpendicular to the extrusion track 3-6.

[0044] like Figure 7 , Figure 8 , Fig. 9 , Fig.10 As shown, a shaft mounting hole 3-1 is opened on the top of the preforming bin 3, and a bearing fixing groove 3-2 is also installed on the top surface. The center of the bearing fixing groove 3-2 coincides with the center of the shaft mounting hole 3-1, and the bearing fixing groove is adapted to the outer diameter of the double-row cylindrical roller bearing 5.

[0045] The side wall of the preforming bin 3 is provided with four feed holes 3-3, and the feed holes 3-3 are cross-symmetrical.

[0046] A first discharge hole 3-4 protruding inward is provided at the bottom of the preforming bin 3, and a material outlet 3-5 is provided on the first discharge hole 3-4, and the first discharge hole 3-4 and the side wall of the preforming bin 3 form an extrusion track 3-6; the wheel roller 2-2 is located in the extrusion track 3-6, and the stirring blade 2-3-2 extends into the extrusion track 3-6, and a gap is left with the bottom of the extrusion track 3-6; the material outlet 3-5 is opposite to the first feed port 3-3-1 in the feed hole 3-3, and a transmission device 4 is provided directly below.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the utility model. Under the guidance of the utility model, ordinary technicians in this field can make a variety of similar expressions without violating the purpose and claims of the utility model, such as applying the technical solution provided by the utility model to other industries that require preforming. Such changes all fall within the scope of protection of the utility model.

Claims

1. A preforming machine, characterized in that: It comprises an extrusion mechanism (2) and a preforming bin (3); The extrusion mechanism (2) is installed inside the preforming bin (3); the preforming bin (3) has a rotating shaft installation hole (3-1) on the top, at least one feeding hole (3-3) on the side wall, and a first discharge hole (3-4) protruding inwardly on the bottom; a material outlet (3-5) is provided on the hole wall of the first discharge hole (3-4); and the first discharge hole (3-4) and the side wall of the preforming bin (3) form an extrusion track (3-6); the wheel roller (2-2) of the extrusion mechanism (2) is located in the extrusion track (3-6) and can rotate along the extrusion track (3-6).

2. A preforming machine according to claim 1, characterized in that: The extrusion mechanism (2) comprises a roller support (2-1), a support connecting plate (2-1-1) is installed on the roller support (2-1), at least one roller fixing frame (2-1-3) is fixed on the lower end surface of the support connecting plate (2-1-1), the roller fixing frame (2-1-3) is connected to the roller (2-2) via a rocker (2-4), and the roller (2-2) rotates along the extrusion track (3-6).

3. A preforming machine according to claim 1, characterized in that: The feed holes (3-3) are equally spaced on the side wall of the preforming bin (3), and by adding material through the feed holes (3-3) at different positions, the material rolling time can be controlled.

4. A preforming machine according to claim 2, characterized in that: A second transmission rod (2-1-2) is fixed to the upper end surface of the bracket connecting plate (2-1-1), and the second transmission rod (2-1-2) is connected to the power mechanism (1) via the rotating shaft mounting hole (3-1).

5. A preforming machine according to claim 2, characterized in that: Symmetrical claw arm fixing frames (2-1-5) are fixed on both sides of the bracket connecting plate (2-1-1), and the claw arm fixing frames (2-1-5) are connected to the claw arm mechanisms (2-3).

6. A preforming machine according to claim 5, characterized in that: The claw arm mechanism (2-3) comprises a claw arm (2-3-1), the upper end of the claw arm (2-3-1) is fixed to the claw arm fixing frame (2-1-5) via a cover plate (2-3-3); the lower end of the claw arm (2-3-1) is fixed with a stirring blade (2-3-2) via bolts, and the stirring blade (2-3-2) is perpendicular to the extrusion track (3-6).

7. A preforming machine according to claim 2, characterized in that: An L-shaped scraper (2-1-4) is also fixed on the roller fixing frame (2-1-3), and the L-shaped scraper (2-1-4) is parallel to the surface of the roller (2-2).

8. A preforming machine according to claim 4, characterized in that: A bearing fixing groove (3-2) is installed on the top surface of the preforming bin (3), and the center of the bearing fixing groove (3-2) coincides with the center of the rotating shaft installation hole (3-1).

9. A preforming machine according to claim 8, characterized in that: A double-row cylindrical roller bearing (5) is fixedly sleeved on the second transmission rod (2-1-2). The double-row cylindrical roller bearing (5) is installed in the bearing fixing groove (3-2), and the outer diameter of the double-row cylindrical roller bearing (5) is adapted to the bearing fixing groove (3-2).

10. A preforming machine according to claim 4, characterized in that: The power mechanism (1) comprises a second bevel gear (1-7) fixedly sleeved on the second transmission rod (2-1-2), the second bevel gear (1-7) and the first bevel gear (1-6) forming a vertical transmission structure, and the first bevel gear (1-6) is connected to the motor (1-1).

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