Equipment for pressing special diamond graphite column

Abstract

The utility model belongs to the technical field of diamond production, and particularly relates to equipment for pressing special diamond graphite columns, which comprises a screening device and an extrusion granulation device, and the screening device is arranged above the extrusion granulation device and is used for screening materials; the extrusion granulation device comprises a granulation box and a material dispersing mechanism, the granulation box is provided with a feeding port and a discharging port, two extrusion rollers are arranged in the granulation box, and a driving motor used for driving the extrusion rollers to rotate is arranged outside the granulation box; the material dispersing mechanism comprises a material dispersing assembly and a forward and reverse rotation motor, the material dispersing assembly comprises a material limiting frame and a material dispersing plate, the material limiting frame is of a vertically-through frame structure with the upper portion wider than the lower portion, the axis direction of the material limiting frame is parallel to the axis direction of the extrusion roller, and the material dispersing plate is rotationally connected to an opening in the lower portion of the material limiting frame; a rotating shaft of the material scattering plate is in transmission connection with an output shaft of the forward-reverse rotation motor. The device has the screening function, and the product quality is improved; and material distribution can be uniform, and the pressing effect is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to diamond production technical field, and concretely relates to a kind of equipment for special diamond graphite column pressing. BACKGROUND

[0002] Synthetic diamond belongs to special diamond, and it is a kind of superhard material, with very high hardness and wear resistance, and is widely used in various industrial fields.The synthesis of synthetic diamond is usually graphite column pressed by cubic press under high temperature and high pressure.The manufacturing process of graphite column is that graphite powder and metal catalyst are mixed uniformly, and are pressed into graphite column by granulator, and then finished product graphite column is prepared by vacuum sintering, wherein raw material mixing and granulation are the key process flow of graphite column pressing.

[0003] The existing graphite column pressing equipment lacks screening function for raw materials when in use, so that large-diameter particles in raw materials cannot be screened out, resulting in different particle sizes of raw materials, affecting product quality;And raw materials are prone to accumulate in the local position of two granulating rollers when discharging, uneven discharging, affecting the pressing effect.

[0004] Therefore, it needs to be improved. UTILITY MODEL CONTENT

[0005] In view of the above defects existing in the prior art, the utility model provides a kind of equipment for special diamond graphite column pressing, including screening device and extruding granulating device, screening device is set in the upper of extruding granulating device, for screening material.

[0006] Extruding granulating device is used to extrude and granulate screened material, and extruding granulating device includes granulating box and bulk material mechanism, the top of granulating box is provided with feed inlet, the bottom of granulating box is provided with discharge port, the inside of granulating box is provided with two left and right opposite extruding rollers, extruding roller uses prior art, such as the granulating roller used in the graphite material special granulator disclosed in the published Chinese patent CN221514410U, a plurality of granulating holes are arranged on the roller surface, the outside of granulating box is provided with driving motor, and the output shaft of driving motor is connected with the roller shaft transmission of extruding roller, and driving motor is used to drive two extruding rollers to rotate.

[0007] The bulk material mechanism comprises a bulk material assembly arranged inside the granulating box and a forward-reverse motor arranged outside the granulating box, the bulk material assembly comprises a material limiting frame arranged below the feeding port and a plurality of bulk material plates, the material limiting frame is a frame structure with a through hole from top to bottom and a width of the upper part being larger than that of the lower part, the material limiting frame is composed of an upper frame with an inverted trapezoidal cross section and a lower frame with a rectangular cross section, the material limiting frame can limit the material passing through the material limiting frame, the axial direction of the material limiting frame is parallel to the axial direction of the two extrusion rollers, and the lower part of the material limiting frame corresponds to the gap between the two extrusion rollers; the plurality of bulk material plates are rotatably connected to the openings in the lower part of the material limiting frame through shafts, the shafts of the plurality of bulk material plates are connected to the output shaft of the forward-reverse motor, and the width of the bulk material plates matches the width of the inner cavity of the lower frame of the material limiting frame, so that the bulk material plates and the material limiting frame can better scatter the material; the bottom of the forward-reverse motor is provided with a fixing support.

[0008] Optionally, the screening device comprises a screening box, the top of the screening box is provided with a feeding port, the bottom of the screening box is provided with a discharging port corresponding to the feeding port of the granulating box, and a valve is arranged at the discharging port, the inside of the screening box is obliquely provided with a first screen and a second screen, the first screen is located above the second screen, the bottom of the first screen is provided with a first rapping motor, the bottom of the second screen is provided with a second rapping motor, the outside of the screening box is provided with a first collecting box and a second collecting box, the first collecting box is located at one end of the first screen, and the second collecting box is located at one end of the second screen.

[0009] Specifically, the first collecting box is used for collecting the material particles screened by the first screen, and the second collecting box is used for collecting the material particles screened by the second screen.

[0010] Optionally, the mesh aperture of the first screen is larger than that of the second screen.

[0011] Optionally, the bottom of the screening box is funnel-shaped, and the screening box is provided below with a support column.

[0012] Specifically, the funnel-shaped bottom facilitates discharging.

[0013] Optionally, the support column comprises an inner support column fixedly connected to the bottom of the screening box and an outer support column sleeved outside the inner support column, a spring damper is arranged between the inner support column and the outer support column, and the bottom of the outer support column is fixed on the granulating box.

[0014] Specifically, the support column arranged in this way can improve the damping effect.

[0015] Optionally, the bottom of the granulating box is provided with a slope, and the discharging port is located at one end of the slope; the bottom of the granulating box is provided below with a support leg.

[0016] Specifically, the bottom with the slope facilitates discharging.

[0017] Optionally, a material collecting box is arranged below the discharging port of the granulating box.

[0018] Specifically, the material collecting box is convenient for collecting the prepared graphite column.

[0019] The utility model discloses still include other components that can make a kind of for special diamond graphite column pressing equipment normal use, it is the conventional technical means in the field, in addition, the device or component not defined in the utility model adopts the conventional technical means in the field, such as rapping motor, driving motor, positive and negative rotation motor and spring damper etc.

[0020] The working principle of the utility model is that the mixed graphite powder and metal catalyst are put into the screening box through the feeding port, the first rapping motor and the second rapping motor are started, the mixture is screened in turn by using the first screen and the second screen, the material after twice screening falls into the granulating box through the feeding port, the positive and negative rotation motor is started at this time, the bulk material plate is driven to rotate, the output shaft of the positive and negative rotation motor is periodically controlled to rotate and reverse, so that the bulk material plate repeatedly rotates, the material passing through the material limiting frame is scattered, the material is uniformly scattered on the two extrusion rollers, the driving motor is started at the same time, the two extrusion rollers are driven to rotate at the same time, the material in the gap is extruded and granulated, and finally the formed graphite column is discharged from the granulating box and collected.

[0021] The utility model has the advantages that through the screening device, the raw materials can be screened to screen out large particles mixed therein, ensure that the particle size of the raw materials is consistent, and improve the product quality of the pressed product; by arranging the bulk material mechanism in the granulating box, the material can be prevented from being concentrated and accumulated in one place, the material is uniformly distributed, and the pressing effect is improved. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below in combination with the drawings and embodiments.

[0023] Fig. 1 It is the whole structure schematic diagram of the utility model.

[0024] Fig. 2 It is the structure schematic diagram of the bulk material assembly of the utility model.

[0025] In the drawing: 1. screening box, 2. first screen, 3. second screen, 4. first rapping motor, 5. second rapping motor, 6. first collecting box, 7. second collecting box, 8. inner support column, 9. outer support column, 10. spring damper, 11. granulating box, 12. extrusion roller, 13. positive and negative rotation motor, 14. material limiting frame, 15. bulk material plate, 16. rotating shaft, 17. material collecting box. DETAILED DESCRIPTION

[0026] The utility model is clearly described below in combination with the drawings and specific embodiments in the embodiments of the utility model, and the description herein is only used to explain the utility model, but not as a limitation on the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor, any modification, equivalent replacement, improvement, etc. should be included in the protection scope of the utility model.

[0027] Embodiment

[0028] As Figs. 1-2 shown, the utility model embodiment provides a kind of equipment for special diamond graphite column pressing, including screening device and extruding granulating device, screening device is arranged above extruding granulating device, for screening material;Screening device includes screening box 1, the top of screening box 1 is provided with feeding port, the bottom of screening box 1 is provided with discharge port, and valve is equipped at discharge port, the inside of screening box 1 is provided with first screen 2 and second screen 3 inclinedly, and first screen 2 is located above second screen 3, the bottom of first screen 2 is provided with first rapping motor 4, the bottom of second screen 3 is provided with second rapping motor 5, the outside of screening box 1 is provided with first collection box 6 and second collection box 7, and first collection box 6 is located at the low end of first screen 2, second collection box 7 is located at the low end of second screen 3, first collection box 6 is used to collect the material particle screened out of first screen 2, and second collection box 7 is used to collect the material particle screened out of second screen 3.

[0029] In addition, the mesh aperture of first screen 2 is greater than the mesh aperture of second screen 3. The bottom of screening box 1 is funnel-shaped, and the funnel-shaped bottom facilitates discharging;A support column is arranged below the screening box 1, the support column includes an inner support column 8 fixedly connected to the bottom of the screening box 1 and an outer support column 9 sleeved outside the inner support column 8, a spring damper 10 is arranged between the inner support column 8 and the outer support column 9, and the bottom of the outer support column 9 is fixedly arranged on the extruding granulating device. The support column arranged in this way can improve the damping effect.

[0030] The extruding granulating device is used for extruding and granulating the screened material, and the extruding granulating device includes a granulating box 11 and a bulk material mechanism. The top of the granulating box 11 is provided with a feeding port corresponding to the discharge port of the screening box 1. The bottom of the granulating box 11 is provided with a discharge port. The inside of the granulating box 11 is provided with two left and right opposite extruding rollers 12. A plurality of granulating holes are arranged on the roller surface. The outside of the granulating box 11 is provided with a driving motor. The output shaft of the driving motor is in transmission connection with the roller shaft of the extruding roller 12. The driving motor is used to drive the two extruding rollers 12 to rotate.

[0031] The material scattering mechanism comprises a material scattering assembly arranged inside the granulating box 11 and a forward-reverse motor 13 arranged outside the granulating box 11, the material scattering assembly comprises a material limiting frame 14 arranged below the feeding port and three material scattering plates 15, the material limiting frame 14 is a frame structure with a through hole from top to bottom and a width of the upper part being larger than that of the lower part, the material limiting frame 14 is composed of an upper frame with an inverted trapezoidal cross section and a lower frame with a rectangular cross section, the material limiting frame 14 can limit the material passing through the material limiting frame 14, the axial direction of the material limiting frame 14 is parallel to the axial direction of the two extrusion rollers 12, and the lower part of the material limiting frame 14 corresponds to the gap between the two extrusion rollers 12; the three material scattering plates 15 are rotationally connected to the openings of the lower part of the material limiting frame 14 through rotation shafts 16, the rotation shafts 16 of the three material scattering plates 15 are connected to the output shaft of the forward-reverse motor 13 in transmission, and the width of the material scattering plates 15 matches the width of the inner cavity of the lower frame of the material limiting frame 14, so that the material scattering plates 15 can better scatter the material in cooperation with the material limiting frame 14; the bottom of the forward-reverse motor 13 is provided with a fixed support.

[0032] In addition, the bottom of the granulating box 11 is provided with a slope, and the discharging port is located at one end of the low slope, and the bottom with the slope facilitates discharging; the lower part of the granulating box 11 is provided with a supporting leg. The lower part of the discharging port of the granulating box 11 is provided with a material collecting box 17, and the material collecting box 17 facilitates collecting the prepared graphite column.

[0033] The working principle of the utility model is that after the mixed graphite powder and metal catalyst are put into the screening box 1 through the feeding port, the first vibrating motor 4 and the second vibrating motor 5 are started, the mixed material is screened in sequence by the first screen 2 and the second screen 3, the material after twice screening falls into the granulating box 11 through the feeding port, at this time, the forward-reverse motor 13 is started to drive the material scattering plate 15 to rotate, the output shaft of the forward-reverse motor 13 is periodically controlled to rotate forward and reverse, the material scattering plate 15 is repeatedly rotated, the material passing through the material limiting frame 14 is scattered, the material is uniformly scattered on the two extrusion rollers 12, at the same time, the driving motor is started to drive the two extrusion rollers 12 to rotate simultaneously, the material in the gap is extruded and granulated, finally, the formed graphite column is discharged from the granulating box 11 and collected.

[0034] The above has described the embodiment of the utility model, the above description is exemplary, is not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A device for pressing special diamond graphite columns, comprising a screening device and an extrusion granulation device, characterized in that: The screening device is arranged above the extrusion granulation device and is used to screen the material; The extrusion granulation device is used to extrude and granulate the screened material. The extrusion granulation device includes a granulation box and a bulk material mechanism. The top of the granulation box is provided with a feed port, the bottom of the granulation box is provided with a discharge port, the interior of the granulation box is provided with two left and right opposite extrusion rollers, the outside of the granulation box is provided with a drive motor, and the output shaft of the drive motor is transmission-connected to the roller shaft of the extrusion roller; The bulk material mechanism includes a bulk material assembly arranged inside the granulation box and a forward and reverse motor arranged outside the granulation box. The bulk material assembly includes a material limiting frame and a plurality of bulk material plates arranged below the feed port. The material limiting frame is a frame structure that is through-through from top to bottom and the upper width is greater than the lower width. The axial direction of the material limiting frame is parallel to the axial direction of the two extrusion rollers, and the lower part of the material limiting frame corresponds to the gap between the two extrusion rollers. The plurality of bulk material plates are rotatably connected to the opening at the lower part of the material limiting frame through rotating shafts, and the rotating shafts of the plurality of bulk material plates are all transmission-connected to the output shafts of the forward and reverse motors.

2. The device for pressing special diamond graphite columns according to claim 1, characterized in that: The screening device includes a screening box, a loading port is provided on the top of the screening box, a discharge port corresponding to the feed port of the granulation box is provided on the bottom of the screening box, and a valve is provided at the discharge port, a first screen and a second screen are obliquely provided inside the screening box, and the first screen is located above the second screen, a first vibrating motor is provided at the bottom of the first screen, and a second vibrating motor is provided at the bottom of the second screen, a first collecting box and a second collecting box are provided outside the screening box, and the first collecting box is located at the lower end of the first screen, and the second collecting box is located at the lower end of the second screen.

3. The device for pressing special diamond graphite columns according to claim 2, characterized in that: The mesh size of the first sieve is larger than the mesh size of the second sieve.

4. The device for pressing special diamond graphite columns according to claim 3, characterized in that: The bottom of the screening box is funnel-shaped, and a supporting column is provided below the screening box.

5. The device for pressing special diamond graphite columns according to claim 4, characterized in that: The support column includes an inner support fixedly connected to the bottom of the screening box and an outer support sleeved outside the inner support. A spring damper is provided between the inner and outer supports, and the bottom of the outer support is fixed on the granulation box.

6. The device for pressing special diamond graphite columns according to claim 5, characterized in that: The bottom of the granulation box is provided with a slope, and the discharge port is located at the lower end of the slope; and supporting legs are provided below the granulation box.

7. The device for pressing special diamond graphite columns according to claim 6, characterized in that: A collecting box is provided below the discharge port of the granulation box.

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