AU2019202491B2

AU2019202491B2 - A crystal cutter

Info

Publication number: AU2019202491B2
Application number: AU2019202491A
Authority: AU
Inventors: Yicong Yu
Original assignee: Weihai Yaochi Crafts Co Ltd
Current assignee: Weihai Yaochi Crafts Co Ltd
Priority date: 2019-03-29
Filing date: 2019-04-09
Publication date: 2020-11-05
Anticipated expiration: 2039-04-09
Also published as: CN110052944B; AU2019202491A1; CN110052944A

Abstract

This invention discloses a crystal cutter, including a shank 11, a transmission cavity 12 arranged within the shank 11, a motor 13 arranged within an inner wall of a top end of the transmission cavity 12, a transmission shaft 14 in power connection with a lower end of the motor 13, a speed changing arrangement 901 arranged in the transmission shaft 14, a main bevel gear 15 arranged on the transmission shaft 14, a cutting device 902 connected with an inner wall of a bottom end of the transmission cavity 12. This invention changes the accuracy of a cutting surface through changing of high and low speeds. Moreover, the pen-shaped appearance affects the and enhances the using scope of the equipment; at the same time, the crystal cutter can ensure a real-time observation when cutting operates with the blowing structure. 1/4 DRAWINGS B 43 L_|__|__ 15 16,\ 17, -,-901 18, 903 ]- ] A X X -25 A-24 Figue23 1 w-902 B Figure I

Description

1/4

DRAWINGS B

43 L_|__|__

15

16,\

17, -,-901

18,

903 ]- ]

A

XX -25 A-24 Figue23 1 w-902

B

Figure I

A CRYSTAL CUTTER TECHNICAL FIELD

[0001] The present invention relates to the technical field of crystal machining, in particular to a crystal cutter.

BACKGROUND OF THE INVENTION

[0002] Since crystal is a solid form of silica, a large amount of powder is generated during cutting, which affects the operator's line of sight and cannot be adjusted in real time. Moreover, the traditional cutting tool is a combination of motor and grinding wheel, which can not achieve the cutting of precision changes. The present invention clarifies an apparatus to solves the above problems.

BRIEF SUMMARY OF THE INVENTION

[0003] The technical problem to be solved by the invention is to provide a crystal cutter so as to overcome the problems existing in the prior art.

[0004] A crystal cutter according to the present invention comprises a shank, wherein a transmission cavity is arranged the shank, wherein a motor is arranged within an inner wall of a top end of the transmission cavity, wherein a transmission shaft is in power connection with a lower end of the motor, wherein the transmission shaft is provided with a speed changing arrangement, and the transmission shaft is provided with a main bevel gear at an upper end of the speed changing arrangement, and a cutting device is slidably connected with an inner wall of a bottom end of the transmission cavity, wherein the cutting device is controlled by the speed changing arrangement, and a switch device for controlling the cutting device is arranged on a first outer side of the transmission cavity, and the shank is provided with blowing slots that are symmetrically located at front and rear ends of the transmission cavity, wherein drive shafts are rotatably connected on inner walls, near a symmetric center, of the blowing slots, wherein the drive shafts are provided with auxiliary bevel gears that engage with the main bevel gear, and the drive shafts are provided with a blowing device that are located within the blowing slots, and the motor are started to drive the transmission shaft to rotate so as to enable the cutting device and the blowing device to operate; when the cutting surface accuracy needs to be changed, the switch device is pressed to drive the cutting device to move downward, so that the cutting device is connected to the speed changing arrangement and the cutting surface accuracy can be affected according to the speed change.

[0005] As an optimized technical proposal, the speed changing device comprises an upper coupling disposed at an end of a lower end of the transmission shaft, wherein the transmission shaft is provided with a sun gear at an upper end of the upper coupling, wherein the transmission cavity is provided with a ring gear at the same height as the sun gear, wherein an inner ring of the ring gear is provided with planetary gears that engage with the sun gear and are bilaterally symmetrical, wherein a planetary carrier is arranged at a lower end of the planetary gears; whereby speed change is achieved by the ratio of the size of the sun gear to the planetary gears.

[0006] As an optimized technical proposal, the cutting device comprises a driven shaft in sliding connection with an inner wall of the bottom end of the transmission cavity, wherein the driven shaft is provided with a spline that touches against the planetary carrier, and an upper end of the driven shaft is provided with a lower coupling that is abutted against the upper coupling, and a lower end of the driven shaft is provided with a grinding wheel located outside of a bottom end of the transmission cavity, and an inner wall of a first end of the transmission cavity is provided with a sliding slot, wherein the sliding slot is in sliding connection with a sliding rod that is in rotational connection with the driven shaft, and an inner wall of a second end of the transmission cavity is provided with a sliding passage, wherein a resistance spring is connected between an inner wall of a lower end of the sliding passage and a lower end of the sliding rod; whereby by transmitting power through the driven shaft, the grinding wheel is enabled to rotate and to cut and polish crystals.

[0007] As an optimized technical proposal, the switch device comprises a fixed shaft disposed at an end surface of a first end of the shank, wherein a connection assembly 800 is rotatably connected with the fixed shaft, wherein the connection assembly 800 comprises a hook that is in sliding connection with the sliding rod, wherein the hook is provided with a locking lever at a lower end thereof, and the sliding rod is provided with a support plate located at a first end of the hook, wherein the support plate is provided at an upper end with a cross beam extending forward and backward, wherein a limiting rod is arranged at a rear end of a lower end surface of the cross beam, wherein the limiting rod is provided with a locking hole that can be abutted against the locking lever; whereby the connection assembly 800 is manually pressed and thus pushing the sliding rod downward, the connection manner between the cutting device and the speed changing device can be changed.

[0008] As an optimized technical proposal, the blowing device comprises tumplates disposed on the drive shafts, wherein the tumplates are provided with two of sliding passages arranged in a cross shape on the sides, away from an symmetric center, of the turnplates, wherein pulleys are slidably connected with the sliding passages, wherein connecting rods are hingedly connected between the pulleys, wherein chain rods are hingedly connected with the connecting rods, and the blowing slots are provided with cylinders at a lower end of the tumplates, wherein the cylinders are provided with through cavities communicated with the upper and lower sides, wherein pistons are slidably connected with the through cavities, wherein the pistons are provided at an upper end with hinge seats hingedly connected with the chain rods; whereby the pulleys slide staggerly in the sliding passages, the pistons are pulled up and down by the chain rods to move reciprocatingly and to blow.

[0009] Beneficial effects of the present invention are as followings: the pen-shaped appearance of the invention is convenient for operators to take and use, and by utilizing a simple pressing switch and changing of high and low speeds, the pen-shaped appearance affects the change of accuracy of the cutting surface and enhances the using scope of the equipment; at the same time, the blowing structure working synchronously with the cutting operation ensures that the cutting surface can be clearly displayed in real time.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010] For better description, the present invention is described in detail by the following specific embodiments and drawings.

[0011] FIG. 1 is the overall schematic structural diagram of a crystal cutter in this invention;

[0012] FIG. 2 is the schematic structural diagram along "A-A" direction in FIG .1;

[0013] FIG. 3 is the schematic structural diagram along "B-B" direction in FIG .1;

[0014] FIG. 4 is the schematic structural diagram along "C-C" direction in FIG .1;

DETAILED DESCRIPTION OF THE INVENTION

[0015] The invention will be described in detail below referring to FIG. 1 to FIG. 4. For better explanation, the orientations described hereinafter are defined as follows: directions of up, down, front and rear in the text are identical to the directions of up, down, front and rear of FIG.1.

[0016] A crystal cutter according to the present invention comprises a shank 11, wherein a transmission cavity 12 is arranged the shank 11, wherein a motor 13 is arranged within an inner wall of a top end of the transmission cavity 12, wherein a transmission shaft 14 is in power connection with a lower end of the motor 13, wherein the transmission shaft 14 is provided with a speed changing arrangement 901, and the transmission shaft 14 is provided with a main bevel gear 15 at an upper end of the speed changing arrangement 901, and a cutting device 902 is slidably connected with an inner wall of a bottom end of the transmission cavity 12, wherein the cutting device 902 is controlled by the speed changing arrangement 901, and a switch device 903 for controlling the cutting device 902 is arranged on a first outer side of the transmission cavity 12, and the shank 11 is provided with blowing slots 37 that are symmetrically located at front and rear ends of the transmission cavity 12, wherein drive shafts 39 are rotatably connected on inner walls, near a symmetric center, of the blowing slots 37, wherein the drive shafts 39 are provided with auxiliary bevel gears 16 that engage with the main bevel gear 15, and the drive shafts 39 are provided with a blowing device 904 that are located within the blowing slots 37, and the motor 13 are started to drive the transmission shaft 14 to rotate so as to enable the cutting device 902 and the blowing device 904 to operate; when the cutting surface accuracy needs to be changed, the switch device 903 is pressed to drive the cutting device 902 to move downward, so that the cutting device 902 is connected to the speed changing arrangement 901 and the cutting surface accuracy can be affected according to the speed change.

[0017] Advantageously, the speed changing device 901 comprises an upper coupling 28 disposed at an end of a lower end of the transmission shaft 14, wherein the transmission shaft

14 is provided with a sun gear 17 at an upper end of the upper coupling 28, wherein the transmission cavity 12 is provided with a ring gear 19 at the same height as the sun gear 17, wherein an inner ring of the ring gear 19 is provided with planetary gears 18 that engage with the sun gear 17 and are bilaterally symmetrical, wherein a planetary carrier 20 is arranged at a lower end of the planetary gears 18; whereby speed change is achieved by the ratio of the size of the sun gear 17 to the planetary gears 18.

[0018] Advantageously, the cutting device 902 comprises a driven shaft 23 in sliding connection with an inner wall of the bottom end of the transmission cavity 12, wherein the driven shaft 23 is provided with a spline 26 that touches against the planetary carrier 20, and an upper end of the driven shaft 23 is provided with a lower coupling 27 that is abutted against the upper coupling 28, and a lower end of the driven shaft 23 is provided with a grinding wheel 22 located outside of a bottom end of the transmission cavity 12, and an inner wall of a first end of the transmission cavity 12 is provided with a sliding slot 25, wherein the sliding slot 25 is in sliding connection with a sliding rod 24 that is in rotational connection with the driven shaft 23, and an inner wall of a second end of the transmission cavity 12 is provided with a sliding passage 33, wherein a resistance spring 21 is connected between an inner wall of a lower end of the sliding passage 33 and a lower end of the sliding rod 24; whereby by transmitting power through the driven shaft 23, the grinding wheel 22 is enabled to rotate and to cut and polish crystals.

[0019] Advantageously, the switch device 903 comprises a fixed shaft 29 disposed at an end surface of a first end of the shank 11, wherein a connection assembly 800 is rotatably connected with the fixed shaft 29, wherein the connection assembly 800 comprises a hook 34 that is in sliding connection with the sliding rod 24, wherein the hook 34 is provided with a locking lever 32 at a lower end thereof, and the sliding rod 24 is provided with a support plate located at a first end of the hook 34, wherein the support plate 35 is provided at an upper end with a cross beam 36 extending forward and backward, wherein a limiting rod 30 is arranged at a rear end of a lower end surface of the cross beam 36, wherein the limiting rod 30 is provided with a locking hole 31 that can be abutted against the locking lever 32; whereby the connection assembly 800 is manually pressed and thus pushing the sliding rod 24 downward, the connection manner between the cutting device 902 and the speed changing device 901 can be changed.

[0020] Advantageously, the blowing device 904 comprises turnplates 38 disposed on the drive shafts 39, wherein the turnplates 38 are provided with two of sliding passages 40 arranged in a cross shape on the sides, away from an symmetric center, of the tumplates 38, wherein pulleys 42 are slidably connected with the sliding passages 40, wherein connecting rods 41 are hingedly connected between the pulleys 42, wherein chain rods 43 are hingedly connected with the connecting rods 41, and the blowing slots 37 are provided with cylinders 44 at a lower end of the turnplates 38, wherein the cylinders 44 are provided with through cavities 47 communicated with the upper and lower sides, wherein pistons 46 are slidably connected with the through cavities 47, wherein the pistons 46 are provided at an upper end with hinge seats 45 hingedly connected with the chain rods 43; whereby the pulleys 42 slide staggerly in the sliding passages 40, the pistons 46 are pulled up and down by the chain rods 43 to move reciprocatingly and to blow.

[0021] Beneficial effects of the present invention are as followings: the pen-shaped appearance of the invention is convenient for operators to take and use, and by utilizing a simple pressing switch and changing of high and low speeds, the pen-shaped appearance affects the change of accuracy of the cutting surface and enhances the using scope of the equipment; at the same time, the blowing structure working synchronously with the cutting operation ensures that the cutting surface can be clearly displayed in real time.

[0022] In an initial state, the resistance spring 21 is not elastically deformed, so that the sliding rod 24 is located near an inner wall of a top end of the sliding passage 33 and that the lower coupling 27 touches against the upper coupling 28, thereby to realize high-speed transmission connection and to shut off the motor 13.

[0023] When the apparatus is in operation, the motor 13 is started and the main bevel gear 15 and the upper coupling 28 are rotated by the transmission shaft 14, and the main bevel gear 15 rotates the auxiliary bevel gears 16 through engagement, and the auxiliary bevel gears 16 rotate the turnplates 38 through the drive shafts 39, and the pulleys 42 at a horizontal end slide first due to an restriction of the sliding passages 40 and pull the pistons 46 upward by the chain rods 43 to suck air in until the sliding passages 40 are vertical, and at this point the pulleys 42 within the sliding passages 40 at a vertical end are moved downward, and the pistons 46 are pushed downward by the chain rods 43 to blow air out, and air is blown through the through cavities 47 and out via openings at a lower end of the blowing slots 37, and the upper coupling 28 rotates the grinding wheel 22 at high speed sequentially through the lower coupling 27 and the driven shaft 23; when the cutting surface accuracy needs to be changed, a thumb presses a front end portion of the locking lever 32 to rotate the hook 34 and thereby to push the sliding rod 24 downward, and thus the sliding rod 24 drives the driven shaft 23 to move downward, so that the upper coupling 28 is disengaged from the lower coupling 27, and the driven shaft 23 is rotated by virtue of the abutment of the spline 26 and the planetary carrier 20, while the sun gear 17 rotates the planetary gears 18 though engagement; due to a restriction of the ring gear 19, the planetary gears 18 are rotated along the sun gear 17, and the speed of the planetary carrier 20 on the planetary gears 18 is lower than a rotation speed of the sun gear 17, and thereby the driven shaft 23 rotates at a low speed; at the same time, the sliding rod 24 moves the cross beam 36 downward through the support plate 35, and the cross beam 36 pushes the limiting rod 30 downward, so that the locking lever 32 can smoothly slide into the locking hole 31 and be locked therein.

[0024] When the operation is completed, the motor 13 is shut off, and the locking lever 32 is manually pushed upward so that the locking lever 32 is disengaged from the locking hole 31, and the sliding rod 24 is pushed upward by the elastic recovery of the resistance spring 21, so that the upper coupling 28 is again abutted against the lower coupling 27.

[0025] The beneficial effects of the present invention are as followings: the pen-shaped appearance of the invention is convenient for operators to take and use, and by utilizing a simple press switch and changing of high and low speeds, the pen-shaped appearance affects the change of accuracy of the cutting surface and enhances the range of application of the equipment; at the same time, the blowing structure working synchronously with the cutting operation ensures that the cutting surface can be clearly displayed in real time.

[0026] Persons skilled in the art can make any modifications in a field of this invention according to a working mode.

Claims

1. A crystal cutter, comprising:

a shank,

wherein a transmission cavity is arranged the shank,

wherein a motor is arranged within an inner wall of a top end of the transmission cavity,

wherein a transmission shaft is in power connection with a lower end of the motor,

wherein the transmission shaft is provided with a speed changing arrangement;

a main bevel gear at an upper end of the speed changing arrangement arranged in the transmission shaft;

a cutting device slidably connected with an inner wall of a bottom end of the transmission cavity,

wherein the cutting device is controlled by the speed changing arrangement;

a switch device for controlling the cutting device arranged on a first outer side of the transmission cavity;

blowing slots that are symmetrically located at front and rear ends of the transmission cavity arranged in the shank,

wherein drive shafts are rotatably connected on inner walls, near a symmetric center, of the blowing slots,

wherein the drive shafts are provided with auxiliary bevel gears that engage with the main bevel gear; a blowing device that are located within the blowing slots arranged on the drive shafts; whereby the motor are started to drive the transmission shaft to rotate so as to enable the cutting device and the blowing device to operate; when the cutting surface accuracy needs to be changed, the switch device is pressed to drive the cutting device to move downward, so that the cutting device is connected to the speed changing arrangement and the cutting surface accuracy can be affected according to the speed change;' the speed changing device comprises an upper coupling disposed at an end of a lower end of the transmission shaft, wherein the transmission shaft is provided with a sun gear at an upper end of the upper coupling, wherein the transmission cavity is provided with a ring gear at the same height as the sun gear, wherein an inner ring of the ring gear is provided with planetary gears that engage with the sun gear and are bilaterally symmetrical, wherein a planetary carrier is arranged at a lower end of the planetary gears; whereby speed change is achieved by the ratio of the size of the sun gear to the planetary gears; the cutting device comprises a driven shaft in sliding connection with an inner wall of the bottom end of the transmission cavity, wherein the driven shaft is provided with a spline that touches against the planetary carrier; a lower coupling that is abutted against the upper coupling arranged on an upper end of the driven shaft; a grinding wheel located outside of a bottom end of the transmission cavity arranged on a lower end of the driven shaft; a sliding slot arranged on an inner wall of a first end of the transmission cavity, wherein the sliding slot is in sliding connection with a sliding rod that is in rotational connection with the driven shaft; a sliding passage arranged on an inner wall of a second end of the transmission cavity, wherein a resistance spring is connected between an inner wall of a lower end of the sliding passage and a lower end of the sliding rod; whereby by transmitting power through the driven shaft, the grinding wheel is enabled to rotate and to cut and polish crystals; the switch device comprises a fixed shaft disposed at an end surface of a first end of the shank, wherein a connection assembly 800 is rotatably connected with the fixed shaft, wherein the connection assembly 800 comprises a hook that is in sliding connection with the sliding rod, wherein the hook is provided with a locking lever at a lower end thereof; a support plate located at a first end of the hook arranged on the sliding rod, wherein the support plate is provided at an upper end with a cross beam extending forward and backward, wherein a limiting rod is arranged at a rear end of a lower end surface of the cross beam, wherein the limiting rod is provided with a locking hole that can be abutted against the locking lever; whereby the connection assembly 800 is manually pressed and thus pushing the sliding rod downward, the connection manner between the cutting device and the speed changing device can be changed; the blowing device comprises tumplates disposed on the drive shafts, wherein the tumplates are provided with two of sliding passages arranged in a cross shape on the sides, away from an symmetric center, of the turnplates, wherein pulleys are slidably connected with the sliding passages, wherein connecting rods are hingedly connected between the pulleys, wherein chain rods are hingedly connected with the connecting rods; cylinders at a lower end of the turnplates arranged in the blowing slots, wherein the cylinders are provided with through cavities communicated with the upper and lower sides, wherein pistons are slidably connected with the through cavities, wherein the pistons are provided at an upper end with hinge seats hingedly connected with the chain rods; whereby the pulleys slide staggerly in the sliding passages, the pistons are pulled up and down by the chain rods to move reciprocatingly and to blow.