A forming machine for preparing glass molded blank

Abstract

The utility model relates to the technical field of glass molded blank forming, and in particular to a forming machine for preparing glass molded blanks, wherein a blow lower mold is arranged below the blow lower mold; the blow lower mold includes a mounting seat; an air inlet pipe is fixed to the bottom of the mounting seat; an air outlet pipe connected to the top of the air inlet pipe is connected to the inside of the mounting seat; a lower mold is fixed to the top of the mounting seat; a lower mold vent connected to the top of the air outlet pipe is arranged at the bottom of the lower mold; a concave spherical surface is arranged at the top of the lower mold; the concave spherical surface is connected to the top of the lower mold vent. When the utility model is used, the glass blank is formed into a regular shape by the air wall of the conical structure, so the shape of each glass blank tends to be consistent, making the subsequent molding quality more stable; and the regular shape is convenient for the contour design of the suction head structure for grabbing the glass blank, and the glass blank is suspended on the concave spherical surface, not in direct contact with the concave spherical surface, which is convenient for demolding the glass blank from the lower mold.

Description

Technical Field

[0001] The utility model relates to the technical field of glass molded blank forming, in particular to a forming machine for preparing glass molded blank. Background Art

[0002] Compression molding is an important equipment for optical lens molding. The glass blank is placed on the compression molding equipment, and after the upper and lower molds of the compression molding equipment are closed, the glass blank is molded into an optical lens.

[0003] Existing glass blank forming equipment usually drips a certain amount of glass fluid onto a carrier of the formed blank through a dripping pipe, and then transports it to a molding device.

[0004] Since the glass blank flows freely on the carrier, the randomness in the thickness direction after the glass blank is shaped on the carrier easily makes the surface of the glass blank irregular. The uneven thickness of the blank will affect the quality of the subsequent molding process of the blank. Moreover, the irregular surface of the glass blank will not allow the suction head used to grab the blank to fit completely, making it difficult to demold the blank. Utility Model Content

[0005] The utility model aims to provide a forming machine for preparing glass molded blanks in view of the defects and shortcomings of the prior art.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model discloses a forming machine for preparing glass molded blanks, which comprises a dropper bracket and a blowing lower mold; the blowing lower mold is arranged below the blowing lower mold; the blowing lower mold comprises a mounting seat; an air inlet pipe is fixed to the bottom of the mounting seat; an air outlet pipe connected to the top of the air inlet pipe is connected inside the mounting seat; a lower mold is fixed to the top of the mounting seat; a lower mold vent hole connected to the top of the air outlet pipe is arranged at the bottom end of the lower mold; a concave spherical surface is arranged at the top of the lower mold; the concave spherical surface is connected to the top of the lower mold vent hole.

[0008] Furthermore, a positioning ring is provided on the outer wall of the lower mold; an outer sleeve is fixed to the outside of the outlet pipe; a pressure cap is provided on the outer sleeve; an inner wall of the pressure cap is provided with an internal thread; the outer wall of the outer sleeve is provided with an external thread threadedly connected to the internal thread; the pressure cap presses the positioning ring against the end face of the outer sleeve.

[0009] Furthermore, it also includes a frame; the dropper bracket is fixed on the frame; the frame is provided with a divider; the divider is connected to a turntable; the frame is provided with a rotary air supply device; the number of the blowing lower molds is at least two; the mounting base of the blowing lower mold is fixed on the turntable; the blowing lower molds are distributed in a circular shape on the turntable; the number of air outlets of the rotary air supply device is equal to the number of the blowing lower molds; the air outlets of the rotary air supply device are respectively connected to the air inlet pipes.

[0010] Furthermore, the dropper bracket includes a bottom bracket, an adjustment assembly, a tube clamp connecting plate and a dropper clamp fixed on the tube clamp connecting plate; the adjustment assembly includes a connecting seat, a longitudinal slide capable of sliding laterally on the connecting seat and a transverse slide capable of sliding on the longitudinal slide; the tube clamp connecting plate is fixed on the transverse slide; a first differential head is connected between the transverse slide and the longitudinal slide; a second differential head is connected between the longitudinal slide and the connecting seat; and the connecting seat is fixed on the bottom bracket.

[0011] Furthermore, the bottom bracket includes a lower column and an upper column slidably connected to the lower column; the lower column is fixed on the frame; the upper column is slidably connected to the lower column; a threaded hole is fixed on the lower column; a strip hole extending along the vertical height direction is provided on the upper column; a head bolt passes through the strip hole and is threadedly connected to the threaded hole; the head bolt locks the upper column on the threaded hole.

[0012] After adopting the above structure, the beneficial effects of the utility model are as follows: the molding machine for preparing glass molded blanks described in the utility model, when using the utility model, a certain amount of molten glass is dripped into the dripping tube and dripped into the concave spherical surface, and at the same time, by controlling the gas pressure of the gas source, the high-temperature gas is discharged from the air inlet pipe, the air outlet pipe and the lower mold vent from the concave spherical surface to form an air wall with a conical structure; the molten glass falling into the concave spherical surface is blown away from the surface of the concave spherical surface, and is continuously suspended and turned to finally form a spherical shape with a regular shape; the glass blank is molded into a regular shape by the air wall with a conical structure, so the shape of each glass blank tends to be consistent, making the subsequent molding quality more stable; and the regular shape facilitates the contoured design of the suction head structure for grabbing the glass blank, and the glass blank is suspended on the concave spherical surface, not in direct contact with the concave spherical surface, which is convenient for demolding the glass blank from the lower mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the structure of the dropper bracket;

[0015] Figure 3 This is the structural diagram of the lower blow mold;

[0016] Description of reference numerals:

[0017] A. Frame; B. Dropper bracket; B1. Dropper clamp; B2. Pipe clamp connecting plate; B3. Transverse slide; B4. First differential head; B5. Second differential head; B6. Longitudinal slide; B7. Connecting seat; B8. Lower column; B801. Threaded hole; B9. Upper column; B901. Strip hole; C. Turntable; D. Divider; E. Blowing lower die; E1. Inlet pipe; E2. Mounting seat; E3. Outlet pipe; E4. Outer sleeve; E5. Lower die; E501. Lower die vent hole; E502. Positioning ring; E503. Concave spherical surface; E6. Pressure cap. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings.

[0019] like Figures 1 to 3 As shown, the present invention discloses a forming machine for preparing glass molded blanks, which comprises a dropper bracket B and a blowing lower mold E; the blowing lower mold E is arranged below the blowing lower mold E; the blowing lower mold E comprises a mounting seat E2; an air inlet pipe E1 is fixed to the bottom of the mounting seat E2; an air outlet pipe E3 connected to the top of the air inlet pipe E1 is connected inside the mounting seat E2; a lower mold E5 is fixed to the top of the mounting seat E2; a lower mold vent E501 connected to the top of the air outlet pipe E3 is arranged at the bottom of the lower mold E5; a concave spherical surface E503 is arranged at the top of the lower mold E5; the concave spherical surface E503 is connected to the top of the lower mold vent E501;

[0020] A dropper is fixed on the dropper bracket B, and an air source is connected to the air inlet pipe E1; a fixed amount of molten glass is dripped from the dropper and dripped into the concave spherical surface E503, and at the same time, by controlling the air pressure of the air source, the high-temperature gas is discharged from the concave spherical surface E503 through the air inlet pipe E1, the air outlet pipe E3 and the lower mold vent E501 to form a conical air wall; so that the molten glass falling into the concave spherical surface E503 is blown away from the surface of the concave spherical surface E503, and is continuously suspended and turned to finally form a regular spherical shape; the glass blank is formed into a regular shape by the conical air wall, so the shape of each glass blank tends to be consistent, so that the subsequent compression molding quality is more stable; and the regular shape is convenient for the contour design of the suction head structure for grabbing the glass blank, and the glass blank is suspended on the concave spherical surface E503, not in direct contact with the concave spherical surface E503, which is convenient for demolding the glass blank from the lower mold E5.

[0021] As a preferred embodiment of the present invention, the outer side wall of the lower mold E5 is provided with a positioning ring E502; the outer side of the outlet pipe E3 is fixed with an outer sleeve E4; a pressure cap E6 is provided on the outer sleeve E4; the inner side wall of the pressure cap E6 is provided with an internal thread; the outer side wall of the outer sleeve E4 is provided with an external thread connected with the internal thread; the pressure cap E6 presses the positioning ring E502 onto the end face of the outer sleeve E4;

[0022] The pressure cover E6 is fixed to the outer sleeve E4 by means of a threaded connection. The pressure cover E6 is rotated to be removed from the outer sleeve E4, so as to facilitate the replacement of the lower die E5 and the cleaning of the blank of the lower die vent hole E501.

[0023] As a preferred embodiment of the utility model, it also includes a frame A; the dropper bracket B is fixed on the frame A; the frame A is provided with a divider D; the divider D is connected to a turntable C; the frame A is provided with a rotary air supply device; the number of the blowing lower molds E is at least two; the mounting seat E2 of the blowing lower mold E is fixed on the turntable C; the blowing lower molds E are distributed in a circular pattern on the turntable C; the number of the air outlets of the rotary air supply device is equal to the number of the blowing lower molds E; the air outlets of the rotary air supply device are respectively connected to the air inlet pipe E1;

[0024] The rotary air supply device is essentially the same as the prior art, so it is not described in detail; the air inlet end of the rotary air supply device is connected to the air source; the air outlet of the rotary air supply device can rotate synchronously with the air inlet pipe E1, so that the blowing lower mold E remains connected to the air source during the rotation process, ensuring that the blowing lower mold E is connected to the air source no matter what angle it rotates to, so that the blowing lower mold E is always in a ventilated state; the divider is essentially the same as the prior art, so it is not described in detail; the divider D is essentially the same as the prior art, so it is not described in detail; the divider D drives the blowing lower mold E on the turntable C to rotate.

[0025] It takes a certain amount of time for the molten glass to be formed into a regular shape. After the molten glass is dripped, the divider D drives the turntable C to rotate a certain angle and then is grabbed. The blank is formed after being misaligned with the blowing lower mold E, which can reduce the residence time of the blowing lower mold E at the drip tube position and increase the forming speed of the glass blank. Before the blowing lower mold E re-enters the position under the drip tube, the glass blank inside the blowing lower mold E is taken out.

[0026] As a preferred embodiment of the present invention, the dropper bracket B includes a bottom bracket, an adjustment component, a pipe clamp connecting plate B2 and a pipette clamp B1 fixed on the pipe clamp connecting plate B2; the adjustment component includes a connecting seat B7, a longitudinal sliding seat B6 capable of sliding laterally on the connecting seat B7 and a transverse sliding seat B3 capable of sliding on the longitudinal sliding seat B6; the pipe clamp connecting plate B2 is fixed on the transverse sliding seat B3; a first differential head B4 is connected between the transverse sliding seat B3 and the longitudinal sliding seat B6; a second differential head B5 is connected between the longitudinal sliding seat B6 and the connecting seat B7; the connecting seat B7 is fixed on the bottom bracket;

[0027] The drip tube clamp B1 is used to clamp the drip tube;

[0028] The first differential head B4 and the second differential head B5 are essentially the same as the existing differential heads, so they are not described in detail. The differential head structure can move telescopically. The second differential head B5 can make the longitudinal slide B6 move longitudinally on the connecting seat B7; the first differential head B4 can make the transverse slide B3 move transversely on the longitudinal slide B6. The combination of the first differential head B4 and the second differential head B5 can make the drip tube face the lower blow mold E.

[0029] As a preferred embodiment of the utility model, the bottom bracket includes a lower column B8 and an upper column B9 slidably connected to the lower column B8; the lower column B8 is fixed on the frame A; the upper column B9 is slidably connected to the lower column B8; a threaded hole B801 is fixed on the lower column B8; a strip hole B901 extending in the vertical height direction is provided on the upper column B9; a head bolt passes through the strip hole B901 and is threadedly connected to the threaded hole B801; the head bolt locks the upper column B9 on the threaded hole B801;

[0030] After loosening the head bolt, the upper column B9 can slide on the lower column B8 to adjust the height of the drip tube on the drip tube clamp B1, thereby adjusting the height of the drip tube and the blowing lower mold E.

[0031] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A forming machine for preparing glass molded blanks, characterized in that: The invention relates to a blow mold (E) comprising a dropper bracket (B) and a blow mold (E); the blow mold (E) is arranged below the blow mold (E); the blow mold (E) comprises a mounting seat (E2); an air inlet pipe (E1) is fixed at the bottom of the mounting seat (E2); an air outlet pipe (E3) connected to the top of the air inlet pipe (E1) is connected inside the mounting seat (E2); a lower mold (E5) is fixed at the top of the mounting seat (E2); a lower mold air vent (E501) connected to the top of the air outlet pipe (E3) is arranged at the bottom of the lower mold (E5); a concave spherical surface (E503) is arranged at the top of the lower mold (E5); the concave spherical surface (E503) is connected to the top of the lower mold air vent (E501).

2. A forming machine for preparing a glass molded blank according to claim 1, characterized in that: The outer wall of the lower mold (E5) is provided with a positioning ring (E502); the outer side of the air outlet pipe (E3) is fixed with an outer sleeve (E4); a pressure cover (E6) is provided on the outer sleeve (E4); the inner wall of the pressure cover (E6) is provided with an internal thread; the outer wall of the outer sleeve (E4) is provided with an external thread connected to the internal thread; the pressure cover (E6) presses the positioning ring (E502) onto the end face of the outer sleeve (E4).

3. A forming machine for preparing a glass molded blank according to claim 1, characterized in that: It also includes a frame (A); the dropper bracket (B) is fixed on the frame (A); the frame (A) is provided with a divider (D); the divider (D) is connected to a turntable (C); the frame (A) is provided with a rotary air supply device; the number of the blowing lower molds (E) is at least two; the mounting seat (E2) of the blowing lower mold (E) is fixed on the turntable (C); the blowing lower molds (E) are distributed in a circular pattern on the turntable (C); the number of the air outlets of the rotary air supply device is equal to the number of the blowing lower molds (E); and the air outlets of the rotary air supply device are respectively connected to the air inlet pipes (E1).

4. A forming machine for preparing a glass molded blank according to claim 1, characterized in that: The dropper bracket (B) comprises a bottom bracket, an adjustment component, a pipe clamp connecting plate (B2) and a pipette clamp (B1) fixed on the pipe clamp connecting plate (B2); the adjustment component comprises a connecting seat (B7), a longitudinal sliding seat (B6) capable of sliding laterally on the connecting seat (B7) and a transverse sliding seat (B3) capable of sliding on the longitudinal sliding seat (B6); the pipe clamp connecting plate (B2) is fixed on the transverse sliding seat (B3); a first differential head (B4) is connected between the transverse sliding seat (B3) and the longitudinal sliding seat (B6); a second differential head (B5) is connected between the longitudinal sliding seat (B6) and the connecting seat (B7); and the connecting seat (B7) is fixed on the bottom bracket.

5. A forming machine for preparing a glass molded blank according to claim 4, characterized in that: The bottom bracket comprises a lower column (B8) and an upper column (B9) slidably connected to the lower column (B8); the lower column (B8) is fixed on the frame (A); the upper column (B9) is slidably connected to the lower column (B8); a threaded hole (B801) is fixed on the lower column (B8); a strip hole (B901) extending in a vertical height direction is provided on the upper column (B9); a head bolt passes through the strip hole (B901) and is threadedly connected to the threaded hole (B801); the head bolt locks the upper column (B9) on the threaded hole (B801).

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