Roller forming device and method for sand roller forming

Abstract

The present invention relates to a roller forming device and method for sand roller forming. The device of the present invention comprises a machine body, a roller pressing mechanism, a driving mechanism and a barrel. The roller pressing mechanism is arranged inside the machine body; the roller pressing mechanism comprises a roller mold mechanism and a core mold mechanism. The rotating axes of the roller mold mechanism and the core mold mechanism are arranged horizontally and parallel to each other. The roller mold mechanism comprises a cylindrical roller mold. The outer surface of the roller mold is provided with spiral convex strips. The core mold mechanism comprises a cylindrical core mold. The roller mold mechanism is connected to a driving mechanism. The driving mechanism is used to drive the roller mold and the core mold to rotate in the direction of the barrel at the same speed. A barrel is arranged just above the gap between the roller mold and the core mold. The barrel is used to place the sand roller raw material and transport the sand roller raw material to the gap between the roller mold mechanism and the core mold mechanism. The roller forming device and method for sand roller forming can save the wasted materials in the process of making sand rollers, reduce the production cycle, and make the sand rollers with stable density and reliable quality.

Description

Technical Field

[0001] The invention relates to a sand roller forming method and device, in particular to a sand roller forming device and method. Background Art

[0002] The sand roller is a key tool in rice milling equipment. Its structural feature is that the outer surface of the cylindrical sand mold with a certain diameter and thickness is attached with spiral grooves with gradually changing depth and width. There are usually three spiral grooves. The traditional sand roller forming method is to first use rigid mold pressing to form a cylindrical sand mold with a smooth surface. After initial hardening, the spiral grooves on the outer surface are processed by a special CNC lathe, and then post-processing such as grinding and polishing is performed to finally form the sand roller product.

[0003] This traditional production method has the following disadvantages:

[0004] 1. A lot of abrasive material is wasted. The sand roller first puts the mixed SiC abrasive material into a rigid mold, applies high pressure to press and form a cylindrical blank, and then needs to continue machining three spiral grooves on the surface of the cylindrical blank. According to calculations, the volume of the spiral groove part accounts for about 13-16% of the blank, and it is mainly SiC abrasive, which is expensive.

[0005] 2. The spiral groove machine processing equipment has high requirements and the processing volume is large. The depth and width of the three spiral grooves are required to be continuously and gradually changed along the axis of the blank, and the pitch is large. A special 4-axis linkage CNC lathe must be used to automatically and accurately control and process according to the code. The hardness of the SiC abrasive grains of the processed material is extremely high, second only to diamond and boron nitride. Traditional carbide tools or ceramic coated tools cannot be processed at all, and specially developed tools must be used. In addition, the machine tool has a large processing volume when cutting the three spiral grooves. The dust and noise generated during the processing are difficult to control. The processing environment is harsh, the processing efficiency is low, and the emission pollution is serious, which does not meet the ecological and environmental protection requirements of green manufacturing. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a roller forming device and method for forming a sand roller in view of the above shortcomings, which can save wasted materials in the process of making sand rollers, reduce the production cycle, and make the sand rollers with stable density and reliable quality.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A roller forming device for sand roller forming, comprising a machine body, a roller pressing mechanism, a driving mechanism and a barrel, wherein the roller pressing mechanism is arranged inside the machine body;

[0009] The rolling mechanism includes a roller mold mechanism and a core mold mechanism, the rotating axes of the roller mold mechanism and the core mold mechanism are horizontally arranged and parallel to each other, the roller mold mechanism includes a cylindrical roller mold, the outer surface of the roller mold is provided with spiral convex strips, the core mold mechanism includes a cylindrical core mold, the roller mold mechanism is connected to a driving mechanism, the driving mechanism is used to drive the roller mold and the core mold to rotate in the direction of the barrel at the same speed, a barrel is arranged directly above the gap between the roller mold and the core mold, the barrel is used to place the sand roller raw material and transport the sand roller raw material to the gap between the roller mold mechanism and the core mold mechanism, the outer surface of the roller mold is coated with a release agent, and the outer side of the core mold is coated with a sand roller plastic lining.

[0010] Furthermore, the roller mold mechanism also includes a roller mold shaft and a roller mold key, the roller mold shaft is arranged on the axis inside the roller mold, and a roller mold key is arranged between the roller mold shaft and the roller mold, and the roller mold key is used to relatively fix the roller mold shaft and the roller mold.

[0011] Furthermore, the core mold mechanism also includes a core mold shaft and a core mold key. The core mold shaft is arranged on the axis inside the core mold. A core mold key is arranged between the core mold shaft and the core mold. The core mold key is used to relatively fix the core mold shaft and the core mold.

[0012] Furthermore, the driving mechanism includes a motor, a reducer, a reducer gear, a roller mold gear and a core mold gear, the output end of the reducer is provided with a reducer gear, the input end of the reducer is connected to the motor, one side of the reducer gear is meshed with the roller mold gear, one side of the roller mold gear is meshed with the core mold gear, the roller mold gear is fixed on the roller mold shaft, and the core mold gear is fixed on the core mold shaft.

[0013] Furthermore, the fuselage includes a base, an outer shell, a front support plate and a rear support plate, the front support plate and the rear support plate are vertically fixed on the base, the roller mold shaft and the core mold shaft are installed between the front support plate and the rear support plate, and the outer shell is U-shaped and is arranged directly above the base, the front support plate and the rear support plate.

[0014] Furthermore, the distance between the roller mold and the core mold is the same as the wall thickness of the sand roller to be manufactured.

[0015] A roll forming method for sand roller forming comprises the following steps:

[0016] Step S1: Loading the raw materials of the sand roller into the barrel;

[0017] Step S2: starting the driving mechanism, which drives the roller mold and the core mold to rotate toward the barrel at the same speed;

[0018] Step S3: the emery roller raw material in the barrel flows into the gap between the roller mold and the core mold and adheres to the outer surface of the core mold, and the roller mold rolls and shapes the emery roller raw material on the outer surface of the core mold;

[0019] Step S4: After adding a certain amount of emery roller raw material, after multiple rolling and shaping, the emery roller raw material on the outer surface of the core mold forms a complete emery roller blank with a spiral groove structure on the surface, and then the outer shell is opened to perform mold removal operation to obtain the emery roller blank.

[0020] Furthermore, the raw material of the sand roller in step S1 is made by mixing SiC particles and a resin adhesive.

[0021] Furthermore, the driving mechanism of step S2 includes a motor, a reducer, a reducer gear, a roller mold gear and a core mold gear, the motor is used to drive the reducer to rotate, the reducer drives the roller mold gear to rotate slowly through the reducer gear, the roller mold gear drives the core mold gear to rotate toward the barrel at the same speed, and then drives the roller mold shaft and the core mold shaft to rotate toward the barrel at the same speed, the roller mold shaft and the core mold shaft drive the roller mold and the core mold to rotate toward the barrel at the same speed and the same speed through the roller mold key and the core mold key.

[0022] After adopting the above technical solution, the present invention has the following advantages compared with the prior art:

[0023] It saves materials, mainly because the material of the spiral groove does not need to be formed first and then cut away, but can be directly formed; it greatly reduces the amount of later machining, improves work efficiency, and effectively reduces dust, noise pollution and equipment investment costs caused by machining, saves energy and is environmentally friendly, and reduces cost consumption; the roller mold and core mold wear slowly, the service life is extended, and the operation is simple; at the same time, the manufactured sand roller product size, structure and compaction density are stable, and the quality is reliable.

[0024] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front view structural schematic diagram of the packing state of the present invention;

[0026] Figure 2 It is a schematic diagram of the top view of the structure of the present invention;

[0027] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0028] 1. Machine body, 11. Base, 12. Shell, 13. Front support plate, 14. Rear support plate, 2. Rolling mechanism, 21. Roller mold mechanism, 211. Roller mold, 212. Roller mold shaft, 213. Roller mold key, 22. Core mold mechanism, 221. Core mold, 222. Core mold shaft, 223. Core mold key, 224. Sand roller plastic lining, 3. Driving mechanism, 31. Motor, 32. Reducer, 33. Reducer gear, 34. Roller mold gear, 35. Core mold gear, 4. Barrel, 5. Sand roller raw materials. DETAILED DESCRIPTION

[0029] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0030] like Figure 1 and Figure 2 As shown, a roller forming device for sand roller forming comprises a machine body 1, a roller pressing mechanism 2, a driving mechanism 3 and a barrel 4, wherein the roller pressing mechanism 2 is arranged inside the machine body 1;

[0031] The rolling mechanism 2 includes a roller mold mechanism 21 and a core mold mechanism 22, the rotating axes of the roller mold mechanism 21 and the core mold mechanism 22 are horizontally arranged and parallel to each other, the roller mold mechanism 21 includes a cylindrical roller mold 211, the outer surface of the roller mold 211 is provided with spiral convex strips, the core mold mechanism 22 includes a cylindrical core mold 221, the roller mold mechanism 21 is connected to the driving mechanism 3, the driving mechanism 3 is used to drive the roller mold 211 and the core mold 221 to rotate at the same speed in the direction of the barrel 4, the barrel 4 is arranged directly above the gap between the roller mold 211 and the core mold 221, the barrel 4 is used to place the sand roller raw material 5 and transport the sand roller raw material 5 to the gap between the roller mold mechanism 21 and the core mold mechanism 22, the outer surface of the roller mold 211 is coated with a release agent, and the outer side of the core mold 221 is coated with a sand roller plastic lining 224.

[0032] The roller mold mechanism 21 also includes a roller mold shaft 212 and a roller mold key 213. The roller mold shaft 212 is arranged on the axis inside the roller mold 211. The roller mold key 213 is arranged between the roller mold shaft 212 and the roller mold 211. The roller mold key 213 is used to relatively fix the roller mold shaft 212 and the roller mold 211.

[0033] The core mold mechanism 22 also includes a core mold shaft 222 and a core mold key 223. The core mold shaft 222 is arranged on the axis inside the core mold 221. The core mold key 223 is arranged between the core mold shaft 222 and the core mold 221. The core mold key 223 is used to relatively fix the core mold shaft 222 and the core mold 221.

[0034] The driving mechanism 3 includes a motor 31, a reducer 32, a reducer gear 33, a roller mold gear 34 and a core mold gear 35. The output end of the reducer 32 is provided with a reducer gear 33, and the input end of the reducer 32 is connected to the motor 31. One side of the reducer gear 33 is meshed with the roller mold gear 34, and one side of the roller mold gear 34 is meshed with the core mold gear 35. The roller mold gear 34 is fixed on the roller mold shaft 212, and the core mold gear 35 is fixed on the core mold shaft 222.

[0035] The fuselage 1 includes a base 11, an outer shell 12, a front support plate 13 and a rear support plate 14, the front support plate 13 and the rear support plate 14 are vertically fixed on the base 11, the roller mold shaft 212 and the core mold shaft 222 are installed between the front support plate 13 and the rear support plate 14, and the outer shell 12 is U-shaped and is arranged directly above the base 11, the front support plate 13 and the rear support plate 14.

[0036] In a specific embodiment of the present invention, the distance between the roller mold 211 and the core mold 221 is the same as the wall thickness of the sand roller to be manufactured.

[0037] In a specific embodiment of the present invention, the barrel 4 is funnel-shaped.

[0038] A roller forming method for sand roller forming, specifically comprising the following steps:

[0039] (1) Load a sand roller raw material 5 made by mixing SiC particles and a resin adhesive into a barrel 4.

[0040] (2) Start the driving mechanism 3: After the motor 31 is powered on, it rotates and drives the reducer 32 to rotate. The reducer 32 drives the roller mold gear 34 to rotate slowly through the reducer gear 33. The roller mold gear 34 drives the core mold gear 35 to rotate toward the barrel 4 at the same speed, and then drives the roller mold shaft 212 and the core mold shaft 222 to rotate toward the barrel 4 at the same speed. The roller mold shaft 212 and the core mold shaft 222 drive the roller mold 211 and the core mold 221 to rotate toward the barrel 4 at the same speed through the roller mold key 213 and the core mold key 223. In this embodiment, the roller mold shaft 212 rotates clockwise and the core mold shaft 222 rotates counterclockwise.

[0041] (3) The sand roller raw material 5 in the barrel 4 flows into the gap between the roller mold 211 and the core mold 221 and adheres to the outer surface of the core mold 221. The roller mold 211 rolls and shapes the sand roller raw material 5 on the outer surface of the core mold 221. Since the outer surface of the roller mold 211 is coated with a release agent, the sand roller raw material 5 will not adhere to the outer surface of the roller mold 211. Moreover, since the outer surface of the core mold 221 is also covered with a sand roller plastic lining 224, the sand roller raw material 5 will be adsorbed on the surface of the core mold 221.

[0042] (4) After adding a certain amount of emery roller raw material 5 and rolling and shaping for many times, the emery roller raw material 5 on the outer surface of the core mold 221 forms a complete emery roller blank with a spiral groove structure on the surface, and then the outer shell 12 is opened to perform the mold removal operation to obtain the emery roller blank.

[0043] The sand roller product manufactured by the invention has stable size, structure and compaction density and reliable quality.

[0044] The above is an example of the best implementation of the present invention, and the parts not described in detail are common knowledge of ordinary technicians in the field. The protection scope of the present invention shall be based on the content of the claims, and any equivalent transformation based on the technical enlightenment of the present invention is also within the protection scope of the present invention.

Claims

1. A roll forming device for sand roller forming, characterized in that: It comprises a machine body (1), a rolling mechanism (2), a driving mechanism (3) and a barrel (4), wherein the rolling mechanism (2) is arranged inside the machine body (1); The rolling mechanism (2) comprises a roller mold mechanism (21) and a core mold mechanism (22), the rotation axes of the roller mold mechanism (21) and the core mold mechanism (22) are arranged horizontally and parallel to each other, the roller mold mechanism (21) comprises a cylindrical roller mold (211), the outer surface of the roller mold (211) is provided with spiral convex strips, the core mold mechanism (22) comprises a cylindrical core mold (221), the roller mold mechanism (21) is connected to a driving mechanism (3), and the driving mechanism (3) is used to drive The roller mold (211) and the core mold (221) rotate at the same speed in the direction of the barrel (4); a barrel (4) is arranged directly above the gap between the roller mold (211) and the core mold (221); the barrel (4) is used to place the sand roller raw material (5) and transport the sand roller raw material (5) to the gap between the roller mold mechanism (21) and the core mold mechanism (22); the outer surface of the roller mold (211) is coated with a release agent, and the outer side of the core mold (221) is coated with a sand roller plastic lining (224); The roller mold mechanism (21) further comprises a roller mold shaft (212) and a roller mold key (213); the roller mold shaft (212) is arranged on an axis inside the roller mold (211); a roller mold key (213) is arranged between the roller mold shaft (212) and the roller mold (211); the roller mold key (213) is used to relatively fix the roller mold shaft (212) and the roller mold (211); The core mold mechanism (22) further comprises a core mold shaft (222) and a core mold key (223); the core mold shaft (222) is arranged on an axis inside the core mold (221); a core mold key (223) is arranged between the core mold shaft (222) and the core mold (221); the core mold key (223) is used to relatively fix the core mold shaft (222) and the core mold (221).

2. The roll forming device for sand roller forming as claimed in claim 1, characterized in that: The driving mechanism (3) comprises a motor (31), a reducer (32), a reducer gear (33), a roller mold gear (34) and a core mold gear (35); the output end of the reducer (32) is provided with a reducer gear (33); the input end of the reducer (32) is connected to the motor (31); one side of the reducer gear (33) is meshed with the roller mold gear (34); one side of the roller mold gear (34) is meshed with the core mold gear (35); the roller mold gear (34) is fixed on the roller mold shaft (212); and the core mold gear (35) is fixed on the core mold shaft (222).

3. The roll forming device for sand roller forming as claimed in claim 1, characterized in that: The body (1) comprises a base (11), an outer shell (12), a front support plate (13) and a rear support plate (14); the front support plate (13) and the rear support plate (14) are vertically fixedly mounted on the base (11); the roller mold shaft (212) and the core mold shaft (222) are mounted between the front support plate (13) and the rear support plate (14); and the outer shell (12) is U-shaped and is arranged directly above the base (11), the front support plate (13) and the rear support plate (14).

4. The roll forming device for sand roller forming as claimed in claim 1, characterized in that: The distance between the roller mold (211) and the core mold (221) is the same as the wall thickness of the sand roller to be manufactured.

5. A roll forming method for sand roller forming, characterized in that: The following steps are involved: Step S1: loading the sand roller raw material (5) into the barrel (4); Step S2: starting the driving mechanism (3), the driving mechanism (3) drives the roller mold (211) and the core mold (221) to rotate in the direction of the barrel (4) at the same speed; Step S3: the emery roller raw material (5) in the barrel (4) flows into the gap between the roller mold (211) and the core mold (221) and adheres to the outer surface of the core mold (221), and the roller mold (211) rolls and shapes the emery roller raw material (5) on the outer surface of the core mold (221); Step S4: After multiple rolling and shaping, the sand roller raw material (5) on the outer surface of the core mold (221) forms a complete sand roller blank with a spiral groove structure on the surface, and then the outer shell (12) is opened to perform a demolding operation to obtain the sand roller blank; The sand roller raw material (5) of step S1 is made by mixing SiC particles and a resin adhesive; The driving mechanism (3) of step S2 comprises a motor (31), a reducer (32), a reducer gear (33), a roller mold gear (34) and a core mold gear (35); the motor (31) is used to drive the reducer (32) to rotate; the reducer (32) drives the roller mold gear (34) to rotate slowly via the reducer gear (33); the roller mold gear (34) drives the core mold gear (35) to rotate in the direction of the barrel (4) at the same speed, and then drives the roller mold shaft (212) and the core mold shaft (222) to rotate in the direction of the barrel (4) at the same speed; the roller mold shaft (212) and the core mold shaft (222) drive the roller mold (211) and the core mold (221) to rotate in the direction of the barrel (4) at the same speed via the roller mold key (213) and the core mold key (223).

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