CN113480148B - Large Optical Glass Press - Google Patents

Abstract

The invention discloses a large-scale optical glass press, comprising a mold, a frame, a base and an electric heating device, the frame is arranged on the base, the mould comprises a bottom mold, a middle mold and a pressing mold, and the bottom mold and the middle mold are arranged on the base On the top, the die is arranged on the frame, the electric heating device includes a first heating device, a second heating device, a third heating device and a fourth heating device, and the first heating device is arranged on the base for preheating the periphery of the middle mold And keep the pressing temperature of the middle die during the pressing process, the second heating device is arranged on the frame for preheating the periphery of the pressing mould and keep the pressing temperature of the pressing mould during the pressing process, the third heating device is arranged through the side support frame The fourth heating device is installed on the base and can be moved left and right to right above the middle mould for preheating the middle mould.

Description

Large Optical Glass Press

technical field

The invention belongs to the technical field of glass processing, in particular to a large optical glass press.

Background technique

At present, in order to ensure the quality of the pressing of optical glass components, the temperature difference between the inside and outside of the pressing mold needs to be kept within a certain range during the pressing process. However, for large glass (diameter between 300mm-500mm), due to its large diameter, the diameter of the mold is also relatively large. During heating, the mold is not easy to be heated, which causes the temperature difference between the inside and outside of the mold to be large. The percentage of defective glass produced increases.

SUMMARY OF THE INVENTION

The invention intends to provide a large-scale optical glass press, which can keep the temperature difference between the inside and outside of the mold within a specified range, thereby improving the quality of producing large-scale optical glass and reducing the generation of defective products.

To this end, the technical solution adopted in the present invention is: a large-scale optical glass press, including a mold, a frame, a base and an electric heating device, the mold includes a bottom mold, an intermediate mold and a pressing mold, and the frame is provided with On the base, the mold is located between the frame and the base, the bottom mold and the middle mold are arranged on the base, the pressing die is arranged on the frame, and the electric heating device includes a first heating device, a second heating device, and a second heating device. A heating device, a third heating device and a fourth heating device, the first heating device is provided on the base for preheating the periphery of the intermediate mold and maintaining the pressing temperature of the intermediate mold during the pressing process, the second heating device is provided It is used on the frame to preheat the periphery of the die and maintain the pressing temperature of the die during the pressing process. The third heating device is arranged on the base through the side support frame and can move left and right to the middle die just above the middle die. For preheating, the fourth heating device is arranged on the base through the side support frame and can be moved left and right to just below the die for preheating of the die.

As a preferred option of the above solution, the base includes a cuboid frame and a working surface arranged on the cuboid frame, the cuboid frame is fixed on the ground by a ground fixing block, the bottom mold is fixed on the working surface, and the working surface is fixed on the working surface. A positioning through hole is arranged on the surface, a positioning protrusion integrally formed with the bottom mold is arranged in the positioning through hole, and the middle mold is fixedly arranged on the bottom mold.

Further preferably, it also includes a mold ejection device arranged on the base, the mold ejection device includes an ejection plate, and the middle part of the bottom mold is provided with an ejection hole coaxial with the bottom mold, and the ejector The plate is arranged in the ejection hole, an ejector rod is arranged under the ejector plate, and an ejector power device is arranged after the ejector rod passes down through the positioning protrusion, and the ejector power device is used to push the ejector The ejector rod moves upward to realize demoulding.

Further preferably, the ejecting power device includes a lifting moving plate, an ejecting motor is arranged below the lifting moving plate, the ejecting motor is fixed on the ground through a door-type fixing seat, and the ejecting motor is installed on the ground. Located in the middle of the door-type fixed seat, two ejection guide posts are arranged at intervals between the lift-up mobile plate and the top of the door-type fixed seat, and between the lift-up mobile plate and the top of the door-type fixed seat There is a pry bar, the middle part of the pry bar is provided with a rotating shaft along the front and rear directions, the front and rear sides of the door-type fixing seat are fixedly provided with a rotating shaft fixing seat, and the front and rear ends of the rotating shaft can be rotated. Set on the corresponding rotating shaft fixing seat.

Further preferably, the first heating device includes a first heating jacket, the first heating jacket is fixedly arranged on the bottom mold, and is jacketed outside the middle mold, and the upper top surface of the first heating jacket is not lower than the middle On the top surface of the mold, the first heating jacket is provided with a helical resistance wire.

Further preferably, the frame includes a guide plate and a top plate, at least four support columns are arranged on the base in a rectangular shape, the guide plate is arranged in the middle of the support column, and the top plate is arranged at the upper end of the support column, so A push-down motor is arranged on the top plate, the telescopic end of the push-down motor passes through the top plate downward and a push-down moving plate is arranged, and a moving rod is arranged under the push-down moving plate, and the moving rod passes through the top plate. A die is arranged behind the guide plate.

Further preferably, the second heating device includes a second heating jacket, the second heating jacket is jacketed outside the compression mold, and the lower bottom surface of the second heating jacket does not exceed the lower bottom surface of the compression mold, and the second heating jacket The connecting rods arranged at intervals on the left and right are fixedly arranged on the pressing moving plate, and the second heating sleeve is located under the guiding plate, and a helical resistance wire is arranged in the second heating sleeve.

Further preferably, the side support frame includes a triangular prism frame disposed on the left side of the base, the top surface of the triangular prism frame is horizontally disposed, and a support plate is disposed on the triangular prism frame.

Further preferably, the third heating device includes a vortex-shaped first heating plate, the first heating plate is arranged on the first moving plate through the first connecting frame, and the first moving plate is provided with front and rear spaced under the first moving plate. A first slider, the first slider can be slidably arranged on a first guide rail, the first guide rail is fixedly arranged on a support plate, a first connecting plate is arranged on the left side of the first moving plate, and the The first connecting plate is connected with the telescopic end of the first moving motor fixed on the support plate. When the first moving motor works, the first connecting plate drives the first moving plate to move left and right along the first guide rail.

Further preferably, the fourth heating device includes a vortex-shaped second heating plate, the second heating plate is arranged on the second moving plate through the second connecting frame, and the second moving plate is provided with spaced front and rear under the second moving plate. The second slider, which is slidably arranged on the second guide rail, the second guide rail is arranged on the support plate through the guide rail fixing frame, and the second connecting plate is arranged on the left side of the second moving plate The second connecting plate is connected with the telescopic end of the second moving motor fixed on the guide rail fixing frame. When the second moving motor works, the second connecting plate drives the second moving plate to move left and right on the second guide rail.

Beneficial effects of the present invention:

1) When in use, the third heating device and the fourth heating device are moved to corresponding positions respectively, so that they preheat the middle mold and the pressing mold respectively. After the four heating devices preheat the mold to a certain extent, Remove and turn off the third heating device and the fourth heating device, and both the first heating device and the second heating device continue to heat to maintain the temperature of the mold and prevent the mold from rapidly cooling, thereby affecting the quality of the pressed glass;

2) Four heating devices are provided to preheat the mold, which can quickly preheat the mold, and the third heating device and the fourth heating device can preheat the mold to keep the temperature difference between the inside and outside of the mold within the specified range. In order to improve the quality of large-scale optical glass and reduce the production of large-scale optical glass defective products;

3) The electric heating method is adopted during heating, which can effectively reduce the generation of environmental pollution, etc., and at the same time, it can control the heating temperature relatively accurately, further reducing the temperature difference between the inside and outside of the mold.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic diagram of the base, the first heating device and the mold ejecting device in the present invention.

3 is a perspective view of the base, the first heating device and the mold ejecting device in the present invention.

FIG. 4 is a perspective view of the mold ejecting device in the present invention.

FIG. 5 is a schematic diagram of the frame and the second heating device in the present invention.

6 is a perspective view of the frame and the second heating device in the present invention.

7 is a perspective view of the side support frame, the third heating device and the fourth heating device in the present invention.

Detailed ways

Below by embodiment and in conjunction with accompanying drawing, the present invention is further described:

As shown in Figures 1-7, a large-scale optical glass press is mainly composed of a mold A, a frame B, a base C, a mold ejector J, a side support frame H and an electric heating device. The frame B is set on the base C, and the mold A is located between the frame B and the base C. The mold A is mainly composed of a bottom mold 1, an intermediate mold 2 and a compression mold 3. Specifically, the bottom mold 1 and the intermediate mold 2 are arranged on the base C, and the compression mold 3 is arranged on the frame B.

The electric heating device specifically includes a first heating device D, a second heating device E, a third heating device F and a fourth heating device G, wherein the first heating device D is arranged on the base C for preheating the periphery of the intermediate mold 2 and The pressing temperature of the intermediate die 2 is maintained during the pressing process, the second heating device E is provided on the frame B for preheating the periphery of the pressing die 3 and the pressing temperature of the pressing die 3 is maintained during the pressing process, and the third heating device F The side support frame H is installed on the base C and can move left and right to the top of the middle mold 2 to preheat the middle mold 2. The fourth heating device G is installed on the base C through the side support frame H and can be moved left and right to the die 3. Immediately below is the preheating of the stamper 3 .

The specific structure of the base C includes a rectangular parallelepiped frame 4 and a working surface 5 arranged on the rectangular parallelepiped frame 4. The rectangular parallelepiped frame 4 is fixedly arranged on the ground through a ground fixing block 6, wherein the rectangular parallelepiped frame 4 is formed by 12 supports and welding, and is convenient for manufacturing. The ground fixing block 6 is integrally formed with the vertical support on the cuboid frame 4 . In order to facilitate the fixing of the bottom mold 1 on the working surface 5, a positioning through hole 5a is provided on the working surface 5, and a positioning protrusion 1a integrally formed with the bottom mold 1 is arranged in the positioning through hole 5a. Bottom mold 1.

In order to facilitate taking out the pressed product, a mold ejector J is provided on the base C. The specific structure of the mold ejector J includes an ejector plate 7, and a coaxial line with the bottom mold 1 is arranged in the middle of the bottom mold 1. The ejection plate 7 is arranged in the ejection hole, and an ejector rod 8 is arranged under the ejector plate 7, and an ejector power device is provided after the ejector rod 8 passes downward through the positioning protrusion 1a.

The specific structure of the ejecting power device includes a lifting moving plate 9, and an ejecting motor 10 is arranged below the lifting moving plate 9. In the middle of the door-type fixed seat 11 , two ejection guide posts 12 are arranged at intervals between the lifting moving plate 9 and the top of the door-type fixed seat 11 . Push out the guide sleeve. When the ejecting motor 10 is working, the ejecting plate 7 is pushed by the ejecting moving plate 9 and the ejecting rod 8, so that the pressed product is ejected, which is an electric ejection.

A pry bar 13 in a "Z" shape is also arranged to the left between the lifting moving plate 9 and the top of the door-type fixing seat 11 , and in the middle of the pry bar 13 (located before the first turning point of the Z shape) A rotating shaft 14 is provided along the front-rear direction, a pedal is provided at the right end of the pry bar 13, and a rotating shaft fixing seat 15 is fixed on the front and rear sides of the door-type fixing seat 11 of the prying bar 13, and the front and rear ends of the rotating shaft 14 are fixed. All of them are rotatably arranged on the corresponding rotating shaft fixing base 15 . When the right end of the pry bar 13 is stepped down, the lifting moving plate 9 is moved upward through the lever principle, so that the pressed product is ejected, which is a manual ejection.

The specific structure of the first heating device D includes a first heating jacket 16, the first heating jacket 16 is fixedly arranged on the bottom mold 1, and is jacketed outside the middle mold 2, and the upper top surface of the first heating jacket 16 is not lower than the middle mold. 2, the first heating jacket 16 is provided with a helical resistance wire. The working surface 5 is provided with a bottom mold pressing block that can fix the bottom mold 1 on the working surface, and there are four bottom mold pressing blocks. In order to ensure that the first heating jacket 16 is coaxial with the middle mold 2 There is a clamping block on one side below the 16 , the clamping block can be clamped on the bottom molding block, and the other bottom molding blocks are pressed against the bottom of the first heating jacket 16 .

The specific structure of the frame B includes a guide plate 18 and a top plate 19. At least four support columns 17 are arranged on the base C in a rectangular shape. The top plate 19 is provided with a push-down motor 20, and the telescopic end of the push-down motor 20 passes through the top plate 19 downward and is provided with a push-down moving plate 21. The push-down moving plate 21 is provided with a moving rod 22, and the moving rod 22 passes through the top plate 19. After passing through the guide plate 18, the die 3 is provided. When the pressing motor 20 is working, the pressing die 3 can be driven to move up and down by pressing the moving plate 21 and the moving rod 22 down.

In order to prevent the die 3 from moving excessively when moving up and down, two limiting blocks are fixedly arranged on the guide plate 18. After the two limiting blocks are combined, they are sheathed outside the moving rod 22. The displacement sensor of the lower moving distance, and the pressing motor 20 adopts a servo electric cylinder that can precisely control the displacement.

The specific structure of the second heating device E includes a second heating jacket 23, the second heating jacket 23 is jacketed outside the compression mold 3, and the lower bottom surface of the second heating jacket 23 does not exceed the lower bottom surface of the compression mold 3, in order to ensure that the compression mold 3 It can be pressed on the middle mold 2, and the distance between the top surface of the first heating jacket 16 and the upper top surface of the middle mold 2 is equal to the distance that the lower bottom surface of the pressing mold 3 exceeds the lower bottom surface of the second heating jacket 23. The second heating jacket 23 is fixedly arranged on the pressing moving plate 21 through the connecting rods 24 arranged at intervals on the left and right, and the second heating jacket 23 is located under the guide plate 18, and a connecting guide sleeve is provided between the connecting rods 24 and the guide plates 18, A helical resistance wire is arranged in the second heating jacket.

The specific structure of the side support frame H includes a triangular prism frame 25 disposed on the left side of the base C, the top surface of the triangular prism frame 25 is horizontally disposed, and a support plate is disposed on the triangular prism frame 25 .

The specific structure of the third heating device F includes a first heating plate 27 in the shape of a vortex. The first heating plate 27 is disposed on the first moving plate 29 through the first connecting frame 28 , and below the first moving plate 29 are disposed front and rear spacers. The first slider 30, the first slider 30 is slidably arranged on the first guide rail 31, the first guide rail 31 is fixedly arranged on the support plate, the left side of the first moving plate 29 is provided with a first connecting plate 32, the first The connecting plate 32 is connected to the telescopic end of the first moving motor 33 fixed on the support plate. When the first moving motor 33 works, the first moving plate 29 is driven to move left and right along the first guide rail 31 through the first connecting plate 32 .

The specific structure of the fourth heating device G includes a vortex-shaped second heating plate 34, the second heating plate 34 is arranged on the second moving plate 36 through the second connecting frame 35, and the second moving plate 36 is provided with a second heating plate 36 at intervals. Two sliding blocks 37, the second sliding block 37 is slidably arranged on the second guide rail 38, the second guide rail 38 is arranged on the support plate through the guide rail fixing frame 39, and the left side of the second moving plate 36 is provided with a second connecting plate 40 , the second connecting plate 40 is connected with the telescopic end of the second moving motor 41 fixed on the guide rail fixing frame 39. When the second moving motor 41 works, the second connecting plate 40 drives the second moving plate 36 on the second guide rail. 38 to move left and right.

A temperature sensor is arranged on the mold A, and a control system is arranged on the left side of the base C, and the control system is electrically connected with the motor, the resistance wire, the heating plate, the temperature sensor and the displacement sensor.

The working process of this press is as follows: start the first moving motor 33 and the second moving motor 41, let them drive the first heating plate 27 to move the middle of the middle die 2 and the second heating plate 34 to the middle of the pressure die 3, Turn off the first moving motor 33 and the second moving motor 41; then simultaneously start the resistance wires in the first heating jacket 16 and the second heating jacket 23 and the first heating plate 27 and the second heating plate 34 to heat the mold A; wait for the temperature After the sensor detects that the temperature inside and outside the mold A reaches the specified value, the first heating plate 27 and the second heating plate 34 are turned off and the first moving motor 33 and the second moving motor 41 are started again, so that the first heating plate 27 and the second moving motor 41 are turned off. The heating plate 34 is returned; the pressed blank is injected into the mold A, and then the pressing motor 20 works, so that the pressing die 3 is moved down and pressed on the intermediate die 2, and the pressing motor 22 is turned off; after the pressing is completed , first close the resistance wires in the first heating jacket 16 and the second heating jacket 23; after cooling to a certain extent, start the pressing motor 20 to return the die 3; after cooling again, start the ejecting motor 10 or Step down on the right end of the pry bar 13 to eject the pressed product; after taking out the product, let the ejector plate 7 return to its position.

Claims (10)

1. The utility model provides a large-scale optical glass press, includes mould (A), frame (B), base (C) and electric heater unit, mould (A) includes die block (1), middle mould (2) and moulding-die (3), frame (B) sets up on base (C), mould (A) is located between frame (B) and base (C), die block (1) and middle mould (2) set up on base (C), moulding-die (3) set up on frame (B), its characterized in that: the electric heating device comprises a first heating device (D), a second heating device (E), a third heating device (F) and a fourth heating device (G), the first heating device (D) is arranged on the base (C) and used for preheating the periphery of the middle die (2) and maintaining the pressing temperature of the middle die (2) in the pressing process, the second heating device (E) is arranged on the frame (B) and used for preheating the periphery of the pressing die (3) and maintaining the pressing temperature of the pressing die (3) in the pressing process, the third heating device (F) is arranged on the base (C) through the side supporting frame (H) and can move left and right to the position right above the middle die (2) to preheat the middle die (2), the fourth heating device (G) is arranged on the base (C) through the side supporting frame (H) and can move left and right to a position right below the pressing die (3) to preheat the pressing die (3).

2. The large optical glass press according to claim 1, wherein: base (C) includes cuboid frame (4) and working face (5) of setting on cuboid frame (4), cuboid frame (4) is fixed through ground fixed block (6) and is set up subaerial, die block (1) is fixed to be set up on working face (5), be provided with positioning hole (5 a) on working face (5), be provided with protruding (1 a) in positioning hole (5 a) with die block (1) integrated into one piece, middle mould (2) are fixed to be set up on die block (1).

3. The large optical glass press according to claim 2, wherein: still including setting up mould ejecting device (J) on base (C), mould ejecting device (J) is including ejector plate (7), the middle part of die block (1) is provided with the ejecting hole with die block (1) coaxial line, ejector plate (7) set up in ejecting hole, ejector plate (7) below is provided with ejector rod (8), ejector rod (8) are provided with ejecting power device after passing location arch (1 a) downwards, ejecting power device is used for promoting ejector rod (8) upward movement and realizes the drawing of patterns.

4. The large optical glass press according to claim 3, wherein: the ejection power device comprises an ejection moving plate (9), an ejection motor (10) is arranged below the ejection moving plate (9), the ejection motor (10) is fixedly arranged on the ground through a door-shaped fixed seat (11), the ejection motor (10) is positioned in the middle of the door-shaped fixed seat (11), two ejection guide columns (12) are arranged between the jacking moving plate (9) and the top of the door-shaped fixed seat (11) at intervals in the front-back direction, a pry bar (13) is arranged between the top of the jacking movable plate (9) and the top of the door-shaped fixed seat (11), a rotating shaft (14) is arranged in the middle of the pry bar (13) along the front-back direction, the front side and the rear side of the door-shaped fixed seat (11) are both fixedly provided with a rotating shaft fixed seat (15), the front end and the rear end of the rotating shaft (14) are both rotatably arranged on the corresponding rotating shaft fixing seats (15).

5. The large optical glass press according to claim 1, wherein: the first heating device (D) comprises a first heating sleeve (16), the first heating sleeve (16) is fixedly arranged on the bottom die (1) and sleeved outside the middle die (2), the upper top surface of the first heating sleeve (16) is not lower than that of the middle die (2), and a spiral resistance wire is arranged in the first heating sleeve (16).

6. The large optical glass press according to claim 1, wherein: frame (B) includes deflector (18) and roof (19), it is four piece at least support columns (17) to be the rectangle on base (C), deflector (18) set up the middle part at support column (17), roof (19) set up the upper end at support column (17), be provided with down motor (20) on roof (19), the flexible end of down motor (20) is provided with down moving plate (21) after passing roof (19) downwards, be provided with carriage release lever (22) under down moving plate (21), be provided with moulding-die (3) after deflector (18) is passed in carriage release lever (22).

7. The large optical glass press according to claim 6, wherein: the second heating device (E) comprises a second heating sleeve (23), the second heating sleeve (23) is sleeved outside the pressing die (3), the lower bottom surface of the second heating sleeve (23) is not more than the lower bottom surface of the pressing die (3), the second heating sleeve (23) is fixedly arranged on the downward-pressing moving plate (21) through connecting rods (24) arranged at left and right intervals, the second heating sleeve (23) is located below the guide plate (18), and a spiral resistance wire is arranged in the second heating sleeve.

8. The large optical glass press according to claim 1, wherein: the side support frame (H) comprises a triangular prism frame (25) arranged on the left side face of the base (C), the top face of the triangular prism frame (25) is horizontally arranged, and a support plate is arranged on the triangular prism frame (25).

9. The large optical glass press according to claim 8, wherein: third heating device (F) is including first heating plate (27) that is the vortex form, first heating plate (27) set up on first movable plate (29) through first link (28), interval is provided with first slider (30) around first movable plate (29) below, first slider (30) slidable sets up on first guide rail (31), first guide rail (31) are fixed to be set up in the backup pad, the left side of first movable plate (29) is provided with first connecting plate (32), first connecting plate (32) link to each other with the flexible end of fixing first mobile motor (33) in the backup pad, and when first mobile motor (33) during operation, remove about first guide rail (31) is followed in first movable plate (29) through first connecting plate (32) drive first movable plate (29).

10. The large optical glass press according to claim 8, wherein: fourth heating device (G) is including second heating plate (34) that is the vortex form, second heating plate (34) sets up on second movable plate (36) through second link (35), interval is provided with second slider (37) around second movable plate (36) below, second slider (37) slidable sets up on second guide rail (38), second guide rail (38) set up in the backup pad through guide rail mount (39), the left side of second movable plate (36) is provided with second connecting plate (40), second connecting plate (40) link to each other with the flexible end of fixing second mobile motor (41) on guide rail mount (39), and when second mobile motor (41) during operation, it removes on second guide rail (38) to drive second movable plate (36) through second connecting plate (40).

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