CN109860078B

CN109860078B - Automatic blanking and crystal expanding machine for LED lamp

Info

Publication number: CN109860078B
Application number: CN201811576312.1A
Authority: CN
Inventors: 李颖
Original assignee: Foshan Endu Lighting Electrical Appliance Co ltd
Current assignee: Foshan endu Lighting Electrical Appliance Co.,Ltd.
Priority date: 2018-12-22
Filing date: 2018-12-22
Publication date: 2021-08-06
Anticipated expiration: 2038-12-22
Also published as: CN109860078A

Abstract

The invention discloses an automatic blanking and crystal expanding machine for an LED lamp, which comprises a base, a placing platform for placing a raw material film, a crystal expanding piece capable of acting up and down, an annular cutting piece for cutting the raw material film, a film pressing piece arranged below the annular cutting piece, a first driving piece for driving the annular cutting piece to act up and down, a second driving piece for driving the crystal expanding piece to act up and down and a heating assembly for heating the raw material film, wherein the placing platform is used for placing the raw material film; the annular cutting piece is provided with an inclined cutting surface, and the bottom of the cutting surface is provided with a cutting knife; according to the invention, the inclined cutting surface is arranged, so that the cutting knife arranged at the bottom of the cutting surface can better cut the waste film, the purpose of automatically removing the waste film is realized, the working procedures are reduced, the workload of workers is reduced, and the production efficiency is improved.

Description

Automatic blanking and crystal expanding machine for LED lamp

Technical Field

The invention belongs to the technical field of LED lamps, and particularly relates to an automatic blanking and crystal expanding machine for an LED lamp.

Background

The crystal expanding machine is also called as a wafer expanding machine or a wafer expanding machine and is widely applied to a crystal grain expanding process in the production of light emitting diodes, LEDs, integrated circuits and some special semiconductor devices.

Although the crystal expanding machine in the current market can achieve a good crystal expanding effect, after a raw material film is stretched, a lot of useless parts are added on the edge, and the subsequent processes are influenced. The existing crystal expanding machine cannot remove redundant raw material films or cannot remove the redundant raw material films cleanly, extra working procedures are needed to remove the redundant raw material films, the workload of workers is increased, and the production efficiency is influenced.

Disclosure of Invention

The invention provides an automatic blanking and crystal expanding machine for an LED lamp, which can be used for automatically removing redundant raw material films and removing relatively clean films in order to overcome the defects of the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: an automatic blanking and crystal expanding machine for an LED lamp comprises a base, a placing platform for placing a raw material film, a crystal expanding piece capable of moving up and down, an annular cutting piece for cutting the raw material film, a film pressing piece arranged below the annular cutting piece, a first driving piece for driving the annular cutting piece to move up and down, a second driving piece for driving the crystal expanding piece to move up and down and a heating assembly for heating the raw material film; the annular cutting piece is provided with an inclined cutting surface, and the bottom of the cutting surface is provided with a cutting knife; if the cutting surface is a vertical plane, and the redundant part of the stretched raw material film is vertically downward along the side surface of the crystal expansion piece, namely the cutting surface is basically parallel to the waste material film, the cutting knife at the lower part of the cutting surface is basically parallel to the waste material film, so that the cutting effect cannot be achieved, and the cutting effect is poor; and through setting up the cutting plane into the face of an slope for be an angle of inclination between cutting plane and the waste material membrane, thereby make the cutting knife of cutting plane lower part also and be an angle of inclination between the waste material membrane, the cutting knife of being convenient for is to the cutting of waste material membrane, has realized the purpose of automatic cutout waste material membrane.

Further, the crystal expanding piece comprises a first arc-shaped surface arranged on the extension of the upper surface of the crystal expanding piece, a vertical surface connected with the first arc-shaped surface, a second arc-shaped surface arranged on the extension of the lower surface of the crystal expanding piece and an inclined surface used for connecting the vertical surface and the second arc-shaped surface; by arranging the first arc-shaped surface, the contact between the crystal expansion piece and the raw material film is smoother, so that the raw material film is prevented from being broken to influence the crystal expansion effect when the crystal expansion piece stretches the raw material film; the vertical surface is arranged, so that the stretched raw material film is tightly attached to the vertical surface, and the vertical surface is matched with the cutting surface on the annular cutting piece, so that the vertical surface can abut against the waste film when the cutting surface extrudes and cuts the waste film, and the waste film is prevented from moving to influence cutting; after the waste material film is cut by the cutting surface along the vertical surface, the waste material film is easily clamped between the cutting surface and the vertical surface and is not easy to fall off, so that the waste material film is not extruded any more and falls off, and the purpose of cleanly cutting the waste material film is realized; and the second arc-shaped surface is arranged, so that the inclined surface is smoothly connected with the lower surface of the crystal expanding piece, and the adhesion of a waste film is further prevented.

Further, a coil pipe is arranged on the lower surface of the placing platform and is spirally wound on the outer side of the heating assembly; a water inlet is formed in one end, far away from the heating assembly, of the coil pipe, and a water outlet is formed in one end, close to the heating assembly, of the coil pipe; set up the water inlet through the one end of keeping away from heating element, one end near heating element sets up the delivery port, make the cooling water from reducing the temperature in the place the platform outside earlier, reduce the inboard temperature of place the platform again, play and prevent that the heat from diffusing to outlying effect, and because the cooling water has absorbed the heat in the place the platform outside earlier, when the place the platform is inboard again, can not too reduce the temperature that the raw materials membrane was placed, can play the effect that prevents place the platform outside temperature too high promptly, can guarantee again that the place the platform middle part and place the partial temperature of raw materials membrane can not too high, too much heat can not taken away by cooling device yet, energy saving and environmental protection.

Further, the coil pipe comprises a third arc-shaped surface arranged in the placing platform, a fourth arc-shaped surface arranged outside the placing platform and a fixing piece arranged on the coil pipe and detachably connected with the placing platform; the third arc-shaped surface of the coil pipe is arranged in the placing platform, so that the contact area between the coil pipe and the placing platform is wider, and heat conduction is facilitated; the fourth arc-shaped surface is arranged on the outer side of the placing platform, so that heat dissipation is more convenient; the heat conducting and radiating effects are further improved due to the arc-shaped surface design; through setting up the stationary blade for the coil pipe is connected with the place the platform realization can be dismantled, and then has made things convenient for and has carried out dismouting and maintenance to the coil pipe, has prolonged the life of product.

Furthermore, the fixing pieces are arranged between the third arc-shaped surface and the fourth arc-shaped surface and are uniformly arranged along the two sides of the coil pipe; locate the stationary blade between the third arcwall face and the fourth arcwall face of coil pipe, when playing the effect of fixed whole coil pipe, also played radiating effect, further strengthened the radiating effect of coil pipe.

Furthermore, a first channel matched with the crystal expansion piece is arranged on the annular cutting piece, a second channel for the crystal expansion piece to pass through is arranged on the film pressing piece, and a third channel with the same size and shape as the crystal expansion piece is arranged on the placing platform; by arranging the third channel, the wafer expanding piece is flush with the groove, so that the raw material film is convenient to place; by arranging the second channel, the crystal expansion piece can penetrate out of the second channel when the raw material film is fixed by the film pressing piece, so that the purpose of crystal expansion is realized; through the arrangement of the third channel, the annular cutting piece can cut off redundant raw material films; through annular cutting piece, pressure membrane spare, place the platform, expand brilliant piece and mutually supporting between the passageway, realized expanding brilliant to the automatic fixed of raw materials membrane, the staff's of being convenient for operation has improved efficiency greatly.

Furthermore, a fixing ring made of elastic rubber materials is arranged on the lower surface of the film pressing piece, and a first annular bulge, a second annular bulge and a third annular bulge are formed by downward extension of the fixing ring; the raw material film can be better fixed by the film pressing piece through the fixing ring; if no fixing ring is arranged, the surface of the film pressing piece made of metal is too smooth, so that ideal friction force cannot be generated between the film pressing piece and the raw material film, and crystal expansion cannot be finished; the fixing ring made of rubber can generate enough friction force between the rubber and the raw material film, and the rubber has elasticity, so that the raw material film can be well pressed, and a good fixing effect is achieved; by arranging the plurality of annular bulges, the contact points of the fixing ring and the raw material film are more, the raw material film cannot be fixed due to too small raw material film, and the raw material film cannot be shredded due to too few contact points; and the fixed ring made of rubber material can also play a role in damping, so that the fixed ring and the placing platform are prevented from being damaged due to over severe collision.

Further, a first annular groove is formed between the first annular bulge and the second annular bulge, and a second annular groove is formed between the second annular bulge and the third annular bulge; the two adjacent annular bulges are connected through a smooth arc surface arranged on the annular groove; by arranging the annular grooves between the annular bulges, when the fixing ring tightly presses the raw material film to deform the annular bulges, a deformation space is reserved for the annular bulges; if the annular groove is not arranged, the adjacent two annular bulges can influence each other when deformed, so that the fixing effect of the fixing ring on the raw material film is influenced; and two adjacent annular bulges are connected through the smooth arc surface, so that the stress generated on the smooth arc surface when the annular bulges deform is uniformly dispersed, the annular bulges cannot be damaged due to overlarge local pressure, and the service life of the fixing ring is prolonged.

In conclusion, the inclined cutting surface is arranged, so that the cutting knife arranged at the bottom of the cutting surface can better cut the waste film, the purpose of automatically removing the waste film is realized, the working procedures are reduced, the workload of workers is reduced, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a partial enlarged view of the present invention;

FIG. 3 is a cross-sectional view of the movable assembly of the present invention;

FIG. 4 is a schematic view of a stretched raw film of the wafer expander of the present invention;

FIG. 5 is an enlarged schematic view at C of FIG. 2;

FIG. 6 is a side view of the snap feature of the present invention;

FIG. 7 is an enlarged schematic view at A in FIG. 1;

FIG. 8 is a schematic view of a retaining ring according to the present invention;

FIG. 9 is an enlarged schematic view at B of FIG. 4;

FIG. 10 is a schematic view of the construction of the coil of the present invention;

fig. 11 is a sectional view of the coil and the placement platform of the present invention in cooperation.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.

As shown in fig. 1 to 11, an automatic blanking and die-expanding machine for LED lamps includes a base 1, a placing platform 2 for placing a raw material film 99, a die-expanding member 8 capable of moving up and down, an annular cutting member 6 for cutting the raw material film 99, a die pressing member 91 disposed below the annular cutting member 6, a first driving member 4 for driving the annular cutting member 6 to move up and down, a second driving member 7 for driving the die-expanding member 8 to move up and down, and a heating assembly for heating the raw material film 99; in the invention, the first driving piece and the second driving piece are commercially available air cylinders. The annular cutting piece 6 is provided with an inclined cutting surface 62, and the bottom of the cutting surface 62 is provided with a cutting knife 63; through setting up the cutting plane of slope for locate cutting plane bottom and set up the cutting waste material membrane that the cutting knife can be better, realized the purpose of getting rid of the waste material membrane automatically. The crystal expansion piece 8 comprises a first arc-shaped surface 81 arranged on the extension of the upper surface of the crystal expansion piece 8, a vertical surface 82 connected with the first arc-shaped surface 81, a second arc-shaped surface 84 arranged on the extension of the lower surface of the crystal expansion piece 8 and an inclined surface 83 used for connecting the vertical surface 82 and the second arc-shaped surface 84; through mutually supporting of vertical face 82, inclined plane 83 and cutting face 62 for cutting face 62 is when cutting the waste material membrane, and the waste material membrane is supported by vertical face 82, and after cutting the waste material membrane, the inclined plane can let the waste material membrane that is cut again drop, has realized the purpose with the clean excision of waste material membrane.

Specifically, the base 1 is provided with a control member 11, and the control member 11 is a commercially available UNO-2172-C22E controller, which is a conventional technology and principle, and therefore, the detailed description thereof is omitted. The placing platform 2 is provided with a groove 21 matched with the film pressing piece 91, the groove is used for placing a raw material film, when the crystal expanding machine works, a worker can fix and realize crystal expansion only by placing the raw material film in the groove, the workload is reduced, and the crystal expanding machine is simple and efficient; a movable assembly 9 is arranged between the annular cutting member 6 and the film pressing member 91. The raw material film placed on the placing platform can be fixed by arranging the movable assembly and the film pressing piece; if the movable assembly and the film pressing piece are not arranged, the raw material film needs to be manually fixed every time, so that time and labor are wasted; the movable assembly is arranged on the annular cutting piece, and the film pressing piece is arranged on the movable assembly, so that the film pressing piece can be pushed to move downwards by the film pressing cylinder, and the raw material film is fixed; at the moment, the crystal expansion piece moves upwards to penetrate out of the third channel, and the raw material film is stretched, so that a good crystal expansion effect is achieved; meanwhile, the movable assembly not only can provide downward pressure for the membrane pressing piece to fix the raw membrane, but also can not prevent the downward movement of the annular cutting piece; through the cooperation of recess, press mold spare, movable assembly and annular cutting, reached the purpose of automatic fixed raw materials membrane, easy operation, labour saving and time saving.

Specifically, the heating assembly comprises a heating plate 22 arranged on the lower surface of the placing platform 2 and a supporting rod 28 for supporting the heating plate; the heating plate 22 is connected with the base through a wire arranged in the supporting rod 28, the controller transmits signals through the wire to control the work of the heating plate, and the heating plate is fixed below the placing platform and the wafer expanding piece through the supporting rod. A gap is reserved between the heating plate 22 and the placing platform 2, so that the heating plate is not in direct contact with the placing platform and the crystal expansion piece, and the raw material film is prevented from being damaged due to overhigh temperature of the placing platform and the crystal expansion piece; the position of the heating plate 22 corresponds to that of the groove 21, so that the heating plate only heats the raw material film in the groove, and the heating plate is energy-saving and environment-friendly. The heating plate is arranged to heat the crystal expanding piece and the placing platform to soften the raw material film, so that crystal expansion is easier, the crystal expansion effect is better, the raw material film is not easy to tear, the raw material film is prevented from being damaged, and the cost is saved; and through locating the hot plate and heating below the place table, rather than directly making the place table generate heat, further guaranteed to be fit for all the time to the heating temperature of raw materials membrane, can not damage the raw materials membrane. Because the heating plate is close to the placing platform and is not tightly attached to the placing platform, a gap is left in the middle, and the temperatures of the heating platform and the wafer expanding piece are not too high; the size of the heating plate is the same as that of the groove, so that only part of the temperature in the groove is higher, namely, only the raw material film is heated, and the waste of capacity is avoided; meanwhile, the temperature of the placing platform outside the groove is not too high, and workers are prevented from being scalded.

Specifically, a support 3 is arranged on the base 1, and the placing platform 2 is fixed on the support 3. A first channel 61 matched with the wafer expanding piece 8 is arranged on the annular cutting piece 6, a second channel 911 for the wafer expanding piece 8 to pass through is arranged on the film pressing piece 91, and a third channel 27 with the same size and shape as the wafer expanding piece 8 is arranged on the placing platform 2; through annular cutting, pressure membrane spare, place the platform, expand brilliant spare and mutually support between the passageway, realized the automatic fixed to the raw materials membrane to can expand the brilliant under the effect of controller after fixing, the staff's of being convenient for operation has improved efficiency greatly.

In order to fix the raw material film 99 better, a fixing ring 912 made of elastic rubber material is arranged on the lower surface of the film pressing member 91, the fixing ring 912 is a concentric ring with a through hole in the center, and the shape and the size of the concentric ring are the same as those of the film pressing member 91. The concentric rings are composed of a first annular bulge 9121, a second annular bulge 9122 and a third annular bulge 9123 which are formed by downward extending of the fixing ring 912; the plurality of annular bulges enable the fixing ring to be in multi-point contact with the raw material film, the contact surface is increased, the fixing effect of the fixing ring on the raw material film is better, a first annular groove 9124 is formed between the first annular bulge 9121 and the second annular bulge 9122, and a second annular groove 9125 is formed between the second annular bulge 9122 and the third annular bulge 9123; the design of the annular groove enables the fixing ring to be deformed more easily, and further the raw material film can be compressed better; two adjacent annular are protruding through locating smooth arcwall face 9126 on the ring channel is connected, plays the effect of the bellied deformation power of dispersion annular, prolongs solid fixed ring's life. Through a plurality of tests, the optimal ratio of the annular bulge to the whole fixing ring is 1:2.3, and the fixing effect of the fixing ring under the ratio is optimal.

Specifically, in order to enable the film pressing member 91 to fix the raw material film and enable the crystal expansion member to expand the crystal of the raw material film, the annular cutting member 6 can cut off the redundant part of the raw material film, a movable assembly 9 is arranged between the annular cutting member 6 and the film pressing member, the movable assembly 9 comprises a sleeve 92 fixedly connected with the annular cutting member 6 and a slide rod 93 matched with the sleeve 92, and the slide rod 93 is fixedly connected with the film pressing member 91; through the arrangement of the sleeve and the sliding rod, the movable connection between the annular cutting piece and the film pressing piece is realized. In order to prevent the sliding rod from being pulled out of the sleeve, the lower surface of the sleeve 92 extends inwards to form a convex edge 921, and the sliding rod 93 is provided with a limiting part 931 matched with the convex edge 921; and the matching of the limiting part and the convex edge can drive the film pressing piece to ascend when the annular cutting piece ascends. In order to realize the purpose that the annular cutting piece can still descend after the raw material film is fixed by the film pressing piece, an elastic piece 922 is arranged in the sleeve 92, one end of the elastic piece 922 is fixedly connected with the annular cutting piece 6, and the other end of the elastic piece 922 is fixedly connected with the upper surface of the sliding rod 93; the elastic part is a strong spring, when the annular cutting part descends to the film pressing part to fix the raw material film, the annular cutting part gives a downward pressure to the spring under the action of the first driving part, so that the spring between the sliding rod and the annular cutting part is contracted, and the contracted spring gives a pressure to the film pressing part to enable the film pressing part to fix the raw material film. Protruding edge 921 with be equipped with a damper 932 between spacing portion 931, this damper 932 one end with protruding edge 921 links firmly, and the other end is the free end, and the setting of free end makes the damper can not influence the flexible of elastic component. By arranging the elastic piece, when the annular cutting piece descends, downward pressure can be applied to the film pressing piece through the elastic piece, so that the film pressing piece can better fix a raw material film and the descending of the annular cutting piece can not be influenced; through setting up the damping piece for when the annular is cut the piece and is driven the press mold piece and shift up, the collision can not be too violent between protruding edge and the spacing portion, when having reduced the noise, has prolonged the life of product.

In order to avoid the heating of the heating assembly to raise the temperature of the whole placing platform, a cooling assembly is arranged below the placing platform 2, and comprises a cooling water tank 23 arranged on the outer side of the heating plate 22 in a surrounding manner, a heat conducting piece 24 arranged in the cooling water tank 23 and detachably connected with the placing platform, a water inlet 25 arranged on the cooling water tank 23 and a water outlet 26 matched with the water inlet 25 to form water circulation; the water tank surrounding the heating plate is used for placing cooling water, so that workers are not easy to contact the heating plate, and potential safety hazards are solved; by arranging the cooling assembly, the placing platform outside the groove is kept at a lower temperature, so that workers are further prevented from being scalded; the heat conducting piece is arranged, so that the cooling effect is enhanced; the cooling water naturally dissipates heat through the circulation of water flow, and a refrigerating device is not required to be additionally arranged; the water inlet and the water outlet are arranged, so that the effect of cooling water circulation is achieved, and the normal work of the cooling assembly is further ensured; the detachable connection of the heat conducting piece and the placing platform enables the installation and the maintenance of the heat conducting piece to be more convenient. The heat conducting piece 24 is of a T-shaped structure, and a buckle structure matched with the heat conducting piece 24 is arranged in the placing platform 2; the heat conducting piece is arranged in the mounting platform, so that the contact area is larger, heat conduction is facilitated, and the heat dissipation effect is further enhanced; and due to the expansion and contraction effect, the clamping effect is better after the heat conducting piece is heated and expanded. The snap structure comprises a strip-shaped channel 241 for the heat conducting member 24 to pass through, a cavity 242 for the T-shaped end of the heat conducting member 24 to rotate, a clamping groove 243 matched with the T-shaped end, and a convex part 244 arranged in the clamping groove 243; the detachable connection of the heat conducting piece and the placing platform is realized through the buckle structure, and the installation and the detachment are simple and convenient.

Preferably, the cooling device of the present invention has another structure: a coil pipe 5 is arranged on the lower surface of the placing platform 2, and the coil pipe 5 is spirally wound on the outer side of the heating component; the spiral winding is arranged, so that the cooling effect is better; a water inlet 51 is arranged at one end of the coil pipe 5 far away from the heating assembly, and a water outlet 52 is arranged at one end of the coil pipe 5 close to the heating assembly; the cooling water is cooled to the inner side from the outer side, so that the heat of the middle part cannot be wasted when the temperature of the outer side is lower. The coil pipe 5 comprises a third arc-shaped surface 53 arranged in the placing platform 2, a fourth arc-shaped surface 54 arranged outside the placing platform 2 and a fixing sheet 55 arranged on the coil pipe 5 and detachably connected with the placing platform 2; the coil pipe is embedded in the placing platform, so that heat conduction and heat dissipation are facilitated; and the connection can be dismantled to the stationary blade, conveniently maintains and the dismouting to the coil pipe. The fixing pieces 55 are arranged between the third arc-shaped surface 53 and the fourth arc-shaped surface 54, and the fixing pieces 55 are uniformly arranged along two sides of the coil pipe 5; the stationary blade evenly sets up along coil pipe both sides, has played certain radiating effect.

Specifically, when the wafer expander works, the raw material film 99 is placed in the groove 21, the switch is turned on, the controller 11 sends an instruction to enable the first driving member 4 to start to operate, the first driving member 4 drives the annular cutting member 6 to descend, and the descending of the annular cutting member 6 drives the film pressing member 91 to descend. When the fixing ring 912 of the pressing member 91 enters the groove 21, the raw material film 99 is pressed. Because the pressure sensor is arranged in the groove 21, when the pressure reaches a preset value, the sensor sends a signal to the controller 11, and the controller 11 sends a signal to control the first driving part 4 to pause, and simultaneously controls the second driving part 7 to operate, so as to push the wafer expanding part 8 to ascend. The crystal expansion piece 8 ascends and leaves the second channel 27 and penetrates out of the first channel 911, and simultaneously jacks up the raw material film 99, so that the raw material film 99 extends to achieve the purpose of crystal expansion; the raw material film 99 is a thin film, and is drawn thick for identification. When the wafer expanding member 8 rises to the preset position, the controller 11 sends a signal to control the second driving member 7 to stop operating, and simultaneously control the first driving member 4 to operate again. At this time, since the film pressing member 91 is already in contact with the groove 21 and cannot descend, the slide rod 93 in the movable assembly 9 compresses the elastic member 922 inwards under the continuous action of the first driving member 4, so that the annular cutting member 6 can descend continuously, and since the annular cutting member 6 is provided with a third channel with the same size and shape as the wafer expanding member, the descending of the annular cutting member 6 can cut the raw material film 99 along the outer side of the wafer expanding member 8, and remove the redundant part on the raw material film 99. When the annular cutting member 6 descends to a certain position and cuts the raw material film 99, the controller 11 sends a signal to control the first driving member 4 to operate reversely, so that the annular cutting member 6 and the film pressing member 91 ascend, and after stopping for 5 seconds and after workers take the raw material film 99 and the like away, the controller 11 sends a signal to control the second driving member to drive the crystal expanding member 8 to descend and return to the second channel 27.

It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Claims

1. An automatic blanking and crystal expanding machine for an LED lamp comprises a base (1), a placing platform (2) for placing a raw material film (99), a crystal expanding piece (8) capable of acting up and down, an annular cutting piece (6) for cutting the raw material film (99), a film pressing piece (91) arranged below the annular cutting piece (6), a first driving piece (4) for driving the annular cutting piece (6) to act up and down, a second driving piece (7) for driving the crystal expanding piece (8) to act up and down and a heating assembly for heating the raw material film (99); the method is characterized in that: the annular cutting piece (6) is provided with an inclined cutting surface (62), and the bottom of the cutting surface (62) is provided with a cutting knife (63); expand brilliant piece (8) including locate expand brilliant piece (8) upper surface epitaxial first arcwall face (81), with vertical face (82) that first arcwall face (81) link to each other, locate expand brilliant piece (8) lower surface epitaxial second arcwall face (84) and be used for connecting vertical face (82) with inclined plane (83) of second arcwall face (84).

2. The automatic blanking and crystal expanding machine for the LED lamp according to claim 1, which is characterized in that: a coil pipe (5) is arranged on the lower surface of the placing platform (2), and the coil pipe (5) is spirally wound on the outer side of the heating assembly; a water inlet (51) is formed in one end, far away from the heating assembly, of the coil pipe (5), and a water outlet (52) is formed in one end, close to the heating assembly, of the coil pipe (5).

3. The automatic blanking and crystal expanding machine for the LED lamp according to claim 2, is characterized in that: coil pipe (5) including locate third arcwall face (53) in place platform (2), locate place platform (2) outside fourth arcwall face (54) and locate on coil pipe (5) with place platform (2) can dismantle stationary blade (55) of being connected.

4. The automatic blanking and crystal expanding machine for the LED lamp according to claim 3, is characterized in that: the fixing piece (55) is arranged between the third arc-shaped surface (53) and the fourth arc-shaped surface (54), and the fixing piece (55) is uniformly arranged along two sides of the coil pipe (5).

5. The automatic blanking and crystal expanding machine for the LED lamp according to claim 1, which is characterized in that: the annular cutting piece (6) is provided with a first channel (61) matched with the crystal expanding piece (8), the film pressing piece (91) is provided with a second channel (911) for the crystal expanding piece (8) to pass through, and the placing platform (2) is provided with a third channel (27) with the same size and shape as the crystal expanding piece (8).

6. The automatic blanking and crystal expanding machine for the LED lamp according to claim 5, is characterized in that: the lower surface of the film pressing piece (91) is provided with a fixing ring (912) made of elastic rubber materials, and the fixing ring (912) extends downwards to form a first annular bulge (9121), a second annular bulge (9122) and a third annular bulge (9123).

7. The automatic blanking and crystal expanding machine for the LED lamp according to claim 6, is characterized in that: a first annular groove (9124) is formed between the first annular protrusion (9121) and the second annular protrusion (9122), and a second annular groove (9125) is formed between the second annular protrusion (9122) and the third annular protrusion (9123); two adjacent annular bulges are connected through a smooth arc-shaped surface (9126) arranged on the annular groove.