Fine crushing roller, crushing mechanism and steel belt tablet press

Abstract

The utility model relates to a fine crushing roller, a crushing mechanism and a steel belt tablet press, the fine crushing roller comprises shaft heads at two ends and a roller body in the middle, the fine crushing roller is characterized in that a plurality of accommodating grooves which are axially formed are distributed in the circumferential direction of the roller body, and the accommodating grooves are used for mounting racks in a matched manner; the rack is of an integrally-formed structure and comprises a connecting bottom plate and crushing teeth distributed on the connecting bottom plate at intervals, the connecting bottom plate is embedded into the containing groove and connected with the bottom face of the containing groove in a matched mode, and the crushing teeth extend to the position above the containing groove. The machining and welding difficulty of the fine crushing roller is reduced, the total cost is saved, the machining period is shortened, the machining efficiency is improved, meanwhile, the welding position is easy to grind and polish, and machine cleaning during equipment production is facilitated. The flexible belt transmission has a buffering effect on impact and vibration when a machine is started, noise is low, the synchronous belt wheels are made of aluminum alloy materials, the problems of rusting and the like do not exist, maintenance is convenient, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a fine crushing roller, a crushing mechanism and a steel belt tablet press, belonging to the technical field of tablet presses. Background Art

[0002] The steel belt tablet press is a key piece of equipment in the powder coating production process. It is primarily used to cool and compress molten, high-temperature powder coating into flakes, which are then crushed. The main functional components of the steel belt tablet press include a tableting mechanism, a crushing mechanism, a conveying and cooling mechanism, and a circulating water cooling assembly. The crushing mechanism is used to crush the cooled flakes.

[0003] The crushing mechanism of the steel belt tablet press is generally designed for two-stage crushing, including a coarse crushing roller for the first stage and a fine crushing roller for the second stage. The fine crushing roller is generally made of small round bars welded on a cylindrical roller in an arrangement and combination. The processing technology is complicated, the cost is high, the processing cycle is long, and the welding equipment and operator skills are high. There are many blind angles in the weld position, which is not easy to grind and polish, and is not conducive to equipment cleaning.

[0004] In addition, the transmission method between the coarse crushing roller and the fine crushing roller of the existing steel belt tablet press crushing mechanism is generally driven by sprockets and chains. This method has large torque and impact vibration during startup, large noise during equipment operation, and the chain is prone to rust, requiring regular maintenance.

[0005] In view of the above, it is necessary and of positive significance to further optimize the crushing mechanism of the existing steel belt tablet press. Utility Model Content

[0006] The utility model aims to solve the above-mentioned problems and further provides a fine crushing roller, a crushing mechanism and a steel belt tablet press.

[0007] In a first aspect, the utility model discloses a fine crushing roller, which comprises shaft heads at both ends and a roller body in the middle. The roller body is characterized in that a plurality of accommodating grooves are distributed circumferentially and opened along the axial direction, and the accommodating grooves are used to fit the racks.

[0008] The rack adopts an integrally formed structure, which includes a connecting base plate and crushing teeth spaced apart on the connecting base plate. The connecting base plate is embedded in the accommodating groove and adaptively connected to the bottom surface of the groove. The crushing teeth extend to the top of the accommodating groove to realize the crushing function.

[0009] Furthermore, two sides of the rack are fixed to two sides of the accommodating groove by welding.

[0010] Furthermore, the roller body is a stainless steel tube.

[0011] On the second aspect, the utility model discloses a crushing mechanism, which is arranged at the crushing end of the steel belt tablet press to crush the sheet material. The crushing mechanism includes a box body, a crushing assembly located inside the box body and a transmission assembly arranged outside the box body. The special feature is that the transmission assembly changes the traditional chain drive into a synchronous belt drive, including a motor, a synchronous pulley one, a synchronous pulley two and a synchronous belt; the crushing assembly includes a coarse crushing roller for primary crushing and a fine crushing roller and a cutting tooth plate for secondary crushing and used in conjunction with each other; wherein, the motor output shaft drives the coarse crushing roller, the synchronous pulley one is fixed at one end of the coarse crushing roller, the synchronous pulley two is fixed at one end of the fine crushing roller, and the synchronous belt is installed between the two synchronous pulleys.

[0012] Furthermore, a tensioning pulley for tensioning the synchronous belt is provided between the synchronous pulley 1 and the synchronous pulley 2.

[0013] Furthermore, the first synchronous pulley and the second synchronous pulley are both aluminum synchronous pulleys.

[0014] Furthermore, the cutting tooth plate is fixed obliquely to one side of the fine crushing roller to provide material sheet guidance, and the tooth plate and the crushing teeth on the fine crushing roller are adapted to each other to achieve the function of cutting and crushing materials.

[0015] Furthermore, the box body includes a box door, and a baffle is fixed on the inner side of the box door. When the box door is closed, the baffle is located at a predetermined position above the fine crushing roller, forming an enclosure space above the fine crushing roller to ensure that the material pieces that have passed the first-level crushing can smoothly enter the secondary crushing area.

[0016] Furthermore, the door of the box body is linked with the emergency stop switch of the equipment, that is, when the door is opened, the equipment stops running immediately to improve safety.

[0017] In a third aspect, the utility model further provides a steel belt tablet press, which includes a tablet pressing mechanism, a crushing mechanism, a conveying and cooling mechanism, and a circulating water cooling component, wherein the structure of the crushing mechanism is as described above.

[0018] The fine crushing roller, crushing mechanism, and steel belt tablet press of this utility model simplify the fine crushing roller structure and its processing technology, reducing the difficulty of fine crushing roller processing and welding, saving overall costs, shortening the processing cycle, and improving processing efficiency. At the same time, the welding position is easy to grind and polish, which is beneficial for cleaning the equipment during production. Furthermore, through force analysis and calculation, a synchronous belt and synchronous pulley are used to transmit power between the coarse crushing roller and the fine crushing roller. Compared with the traditional rigid chain drive, the flexible belt drive has a buffering effect on the impact and vibration during machine startup and is quieter. Moreover, the synchronous pulley is made of aluminum alloy, which does not have the problem of rusting, facilitating maintenance and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 : Schematic diagram of the overall structure of the fine crushing roller of Example 1;

[0020] Figure 2 : Schematic diagram of the roller body structure of the fine crushing roller;

[0021] Figure 3 : Schematic diagram of the rack structure of the fine crushing roller;

[0022] Figure 4 : Schematic diagram of the overall structure of the crushing mechanism of Example 2;

[0023] Figure 5 : Figure 4 Schematic diagram of the internal structure of the middle box. DETAILED DESCRIPTION

[0024] The present invention is described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] This embodiment relates to a fine crushing roller for a steel belt tablet press, such as Figure 1-3 As shown, it includes shaft heads 1 at both ends and a roller body 2 in the middle. The roller body 2 is a stainless steel tube with several axially distributed receiving grooves 21 distributed around its circumference. A rack 3 is welded into the receiving groove 21 using argon arc welding. The rack 3 is an integrally formed structure, including a connecting base 31 and crushing teeth 32. The connecting base 31 is adapted to be installed in the receiving groove 21 of the roller body 2 and adapted to be connected to its bottom surface. The crushing teeth 32 extend and are exposed above the receiving groove 21. The two sides of the rack 3 and the two sides of the receiving groove 21 are welded by argon arc welding to form two straight lines.

[0027] Example 2

[0028] This embodiment relates to a crushing mechanism configured on a steel belt tablet press for crushing tablets, such as Figure 4-5As shown, the crushing mechanism includes a housing 4, a crushing assembly mounted inside the housing 4, and transmission assemblies mounted on both sides of the housing. The housing 4 has a door 41 at the front end. The transmission assembly includes a motor 51, a synchronous pulley 1 52, a synchronous pulley 2 53, a tensioning pulley 54, and a synchronous belt 55. Both synchronous pulley 1 52 and synchronous pulley 2 53 are made of aluminum. The crushing assembly includes a coarse crushing roller 61 for primary crushing, a fine crushing roller 62 for secondary crushing, and a cutting tooth plate 63 that cooperate with each other. The cutting tooth plate 63 is fixed obliquely to one side of the fine crushing roller 62 to provide sheet guidance. The tooth plate 63 mates with the crushing teeth on the fine crushing roller 62 to achieve the function of cutting and crushing the material. The motor 51 is arranged on one side of the box body 4, and its output shaft is driven and connected to one end of the coarse crushing roller 61. The synchronous pulley 1 52 is fixed to the other end of the coarse crushing roller 61, and the synchronous pulley 2 53 is fixed to one end of the fine crushing roller 62. The tensioning pulley 54 is installed on one of the two synchronous pulleys, and the synchronous belt 55 is installed between the two synchronous pulleys and the tensioning pulley 54.

[0029] A baffle 42 is fixed on the inner side of the box door 41 of the box body 4. When the box door is closed, the baffle 42 is located at a predetermined position above the fine crushing roller 62, forming an enclosure space above the fine crushing roller 62 to ensure that the pieces that have passed the first-stage crushing can smoothly enter the secondary crushing area.

[0030] The box door 41 is linked to the emergency stop switch of the equipment, that is, when the box door 41 is opened, the equipment stops running immediately to improve safety.

[0031] Example 3

[0032] This embodiment relates to a steel belt tablet press having the fine crushing roller described in the first embodiment.

[0033] Example 4

[0034] This embodiment relates to a steel belt tablet press having the crushing mechanism described in the second embodiment.

Claims

1. A fine crushing roller, comprising shaft heads at both ends and a roller body in the middle, characterized in that: The roller body is circumferentially provided with a plurality of accommodating grooves opened along the axial direction, and the accommodating grooves are used to fit and install the racks; The rack is an integrally formed structure, which includes a connecting base plate and crushing teeth spaced apart on the connecting base plate. The connecting base plate is embedded in the accommodating groove and adaptively connected to the bottom surface of the groove. The crushing teeth extend to the top of the accommodating groove to realize the crushing function.

2. A fine crushing roller according to claim 1, characterized in that: The two sides of the rack are welded and fixed to the two sides of the accommodating groove.

3. A fine crushing roller according to claim 1, characterized in that: The roller body is a stainless steel tube.

4. A crushing mechanism, comprising a box, a crushing assembly located inside the box, and a transmission assembly arranged outside the box, characterized in that: The transmission assembly changes the traditional chain drive into a synchronous belt drive, including a motor, a synchronous pulley 1, a synchronous pulley 2 and a synchronous belt; the crushing assembly includes a coarse crushing roller for primary crushing and a fine crushing roller and a cutting tooth plate for secondary crushing and used in conjunction with each other; wherein, the motor output shaft drives the coarse crushing roller, the synchronous pulley 1 is fixed to one end of the coarse crushing roller, the synchronous pulley 2 is fixed to one end of the fine crushing roller, and the synchronous belt is installed between the two synchronous pulleys; the fine crushing roller adopts the structure described in any one of claims 1 to 3.

5. A crushing mechanism according to claim 4, characterized in that: A tensioning pulley for tensioning the synchronous belt is provided between the synchronous pulley 1 and the synchronous pulley 2.

6. A crushing mechanism according to claim 4, characterized in that: The first synchronous pulley and the second synchronous pulley are both aluminum synchronous pulleys.

7. A crushing mechanism according to claim 4, characterized in that: The cutting tooth plate is fixed obliquely to one side of the fine crushing roller to provide material sheet guidance. At the same time, the tooth plate and the crushing teeth on the fine crushing roller are adapted to each other to achieve the function of cutting and crushing materials.

8. A crushing mechanism according to claim 4, characterized in that: The box body includes a box door, and a baffle is fixed on the inner side of the box door. When the box door is closed, the baffle is located at a predetermined position above the fine crushing roller, forming an enclosure space above the fine crushing roller to ensure that the material pieces that have passed the first-level crushing can smoothly enter the secondary crushing area.

9. A crushing mechanism according to claim 4, characterized in that: The door of the box body is linked with the emergency stop switch of the equipment, that is, when the door is opened, the equipment stops running immediately to improve safety.

10. A steel strip tablet press, comprising a tablet pressing mechanism, a crushing mechanism, a conveying and cooling mechanism and a circulating water cooling assembly, characterized in that: The crushing mechanism is the crushing mechanism according to any one of claims 4 to 9.

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