A glass cup forming die with a special-shaped die bottom

Abstract

The application discloses a glass cup forming die with a special-shaped die bottom, which comprises a fine die spliced by two half parts and a die bottom base arranged at the bottom of the fine die, a cup bottom supporting die which can rotate concentrically relative to the die bottom base is arranged on the die bottom base, the upper part of the special-shaped cup bottom supporting die is provided with a special-shaped structure which is formed by being protruded upward, concentric adjusting devices are arranged between the cup bottom supporting die and the die bottom base, and the concentricity between the cup bottom supporting die and the die bottom base is adjusted so that the cup bottom supporting die can rotate concentrically and coaxially relative to the die bottom base. In the application, the cup bottom supporting die with the special-shaped structure can be used to produce the glass cup with the special-shaped bottom, and the glass cup needs to be rotated in the forming process; the concentricity between the cup bottom supporting die and the die bottom base can be automatically corrected through the concentric adjusting devices in the rotating process, and the cup bottom supporting die can rotate concentrically and coaxially relative to the die bottom base.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of glass mold, in particular to a glass cup forming mold with a special-shaped mold bottom. BACKGROUND

[0002] The glass cup production process mainly includes: raw material pre-processing, that is, crushing block-shaped raw materials (quartz sand, soda ash, limestone, feldspar, etc.), drying the wet raw materials, and removing iron from the iron-containing raw materials to ensure the quality of the glass; batch preparation; melting, that is, the glass batch is heated at a high temperature (1550-1600 degrees) in a pool kiln or pool furnace to form a uniform, bubble-free, and meet the forming requirements of the liquid glass; forming, that is, the liquid glass is placed into a mold to form a glass product with the required shape; heat treatment, that is, through annealing, quenching, and other processes, to eliminate or generate internal stress, phase separation or crystallization of the glass, and to change the structure state of the glass.

[0003] Glass forming requires specially designed glass forming molds, and the forming molds are different according to the shape and structure of the product. The glass cups produced by the glass forming molds on the market have flat or arc-shaped bottoms, which have little competitiveness in the market.

[0004] There is no glass cup with a special-shaped bottom on the market that is produced by automatic or semi-automatic cup blowing machines. A special glass mold needs to be developed for such glass cups, and the glass cup needs to be rotated along the glass mold during the forming process to completely form the glass cup. For glass cups with a special-shaped bottom, the mold bottom used for forming the bottom needs to be prevented from shifting during rotation to ensure the concentricity of the mold bottom and the base to prevent the special-shaped structure of the bottom from being formed. SUMMARY

[0005] The purpose of the present application is to solve the above problems, and a glass cup forming mold with a special-shaped mold bottom is designed to ensure the concentricity of the mold bottom and to form the special-shaped bottom of the glass cup.

[0006] To achieve the above purpose, the technical solution of the present application is a glass cup forming mold with a special-shaped mold bottom, which includes a precision mold composed of two half parts and a mold base set at the bottom of the precision mold. The mold base is provided with a bottom supporting mold that can rotate concentrically relative to the mold base. The upper part of the bottom supporting mold has a special-shaped structure formed by protruding upward.

[0007] A concentric adjusting device is provided between the bottom supporting mold and the mold base to adjust the concentricity between the bottom supporting mold and the mold base, so that the bottom supporting mold can rotate concentrically and coaxially relative to the mold base.

[0008] Further, the concentric adjusting device is an annular adjusting block formed by protruding upward along the mold base, a plurality of rolling balls arranged on the upper surface of the annular adjusting block, and an annular limiting groove arranged on the bottom of the cup bottom mold and matched with the plurality of rolling balls, the annular adjusting block has an inclined slope, and the plurality of rolling balls are located between the annular limiting groove and the annular adjusting block.

[0009] Further, the cross section of the annular limiting groove is in the shape of an inverted V, the annular limiting groove is matched with the plurality of rolling balls, and the upper side of the plurality of rolling balls is in close contact with the groove wall of the annular limiting groove.

[0010] The upper surface of the annular adjusting block is an inclined slope inclined toward the center of the circle, and the plurality of rolling balls can roll along the slope on the top of the annular adjusting block in the circumferential direction.

[0011] Further, the cross section of the annular limiting groove is in the shape of a semicircle, the annular limiting groove is matched with the plurality of rolling balls, and the plurality of rolling balls are in rolling connection with the annular limiting groove.

[0012] Further, a containing groove for accommodating the cup bottom mold is arranged at the middle position of the upper part of the cup bottom mold, there is a small gap between the bottom surface of the cup bottom mold and the containing groove, and the diameter of the containing groove is larger than the diameter of the cup bottom mold.

[0013] Further, a circular adjusting groove is arranged in the containing groove, the annular adjusting block is located in the adjusting groove and matched with the groove wall of the adjusting groove, garbage grooves are formed on both sides of the annular adjusting block, and the width of the adjusting groove is greater than the diameter of the rolling ball.

[0014] Further, an oiling hole is arranged on one side of the mold base, the oiling hole is inclined downward and communicates with the garbage groove.

[0015] Further, a circular water accumulation groove is arranged along the circumferential direction of the bottom surface of the containing groove, at least one drainage hole is arranged on the mold base to drain downward, and the drainage hole communicates with the water accumulation groove.

[0016] Further, an upwardly recessed groove is formed on the bottom of the cup bottom mold, a heat dissipation cavity is formed between the groove and the mold base, at least one exhaust hole is arranged on the mold base to exhaust downward, and the exhaust hole communicates with the heat dissipation cavity.

[0017] Further, at least one limiting screw is arranged on one side of the mold base, the limiting screw is in threaded connection with the mold base, the cup bottom mold is recessed downward along the circumferential direction to form a limiting part, the nut of the limiting screw is in clearance fit with the limiting part of the cup bottom mold, and the position of the cup bottom mold is limited.

[0018] Compared with the prior art, the present application has the beneficial effects that:

[0019] The cup bottom supporting die with the special-shaped structure can produce the glass cup with the special-shaped bottom, and the glass cup needs to be rotated during the forming process, and the cup bottom supporting die can automatically correct the concentricity between the cup bottom supporting die and the die base through the concentric adjusting device during the rotation process, so that the cup bottom supporting die can rotate concentrically with the die base, the coaxiality of the cup bottom supporting die and the die base can be synchronously and flexibly rotated within the range of 0-1.5 mm, and the forming of the special-shaped cup bottom of the glass cup is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the schematic diagram of the overall cross-sectional structure of embodiment 1 of the present application;

[0021] Figure 2 is the schematic diagram of the cross-sectional structure of the cup bottom supporting die and the die base in embodiment 1;

[0022] Figure 3 is the schematic diagram of the cross-sectional structure of the die base in embodiment 1;

[0023] Figure 4 is the schematic diagram of the cross-sectional structure of the cup bottom supporting die in embodiment 1;

[0024] Figure 5 is the schematic diagram of the overall cross-sectional structure of embodiment 2.

[0025] Figure 6 is the schematic diagram of the cross-sectional structure of the cup bottom supporting die and the die base in embodiment 2;

[0026] Figure 7 is the schematic diagram of the cross-sectional structure of the cup bottom supporting die in embodiment 2;

[0027] Figure 8 is the schematic diagram of the cross-sectional structure of the cup bottom supporting die in embodiment 3.

[0028] In the drawings, 1 is a precision die; 2 is a die base; 21 is a containing groove; 22 is an adjusting groove; 221 is a garbage groove; 23 is a water accumulation groove; 24 is a drainage hole; 25 is an air exhaust hole; 26 is an oil filling hole; 27 is a plug hole; 3 is a cup bottom supporting die; 31 is a limiting part; 4 is a concentric adjusting device; 41 is an annular adjusting block; 42 is a rolling ball; 43 is an annular limiting groove; 5 is a limiting screw. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described in combination with the drawings of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] Example 1

[0031] like Figures 1-4 As shown, a glass cup forming mold with an irregularly shaped bottom is mainly composed of the following parts: a precision mold 1, a mold base 2, and a bottom support mold 3. The precision mold 1 is composed of two halves and is mainly used for forming the glass cup body. The mold base 2 is located at the bottom of the precision mold 1. An insertion hole 27 is provided at the lower end of the mold base 2 for connecting with the equipment push rod to fix the glass cup forming mold. A receiving groove 21 is provided at the upper part of the mold base 2 for receiving the bottom support mold 3. The bottom support mold 3 and the precision mold 1 together form a forming cavity for forming the glass cup. An irregularly shaped structure is formed by protruding upward at the middle position of the upper part of the bottom support mold 3 for forming the bottom of the glass cup. The specific shape of this irregularly shaped structure is not fixed and is an irregular shape, such as the shape of a mountain peak. The resulting glass cup has an irregularly shaped concave bottom with a unique aesthetic.

[0032] refer to Figure 1 A concentric adjustment device 4 is provided between the mold base 2 and the cup bottom mold 3. When rotating, the glass cup on the cup bottom mold 3 and the cup bottom mold 3 rotate together, while the fine mold 1 and the mold base 2 do not rotate. Therefore, the concentricity between the cup bottom mold 3 and the mold base 2 is adjusted by the concentric adjustment device 4, so that the cup bottom mold 3 can rotate concentrically and coaxially with respect to the mold base 2. The concentricity of the glass cup and the concentricity of the mold base 2 are basically the same. Therefore, the concentricity between the cup bottom mold 3 and the glass cup can be adjusted in this way.

[0033] like Figure 2 and Figure 3 As shown, the concentric adjustment device 4 is composed of three parts: an annular adjustment block 41 that protrudes upward along the mold base 2, a number of rolling balls 42 disposed on the upper surface of the annular adjustment block 41, and an annular limiting groove 43 disposed at the bottom of the cup bottom mold 3 and cooperating with the number of rolling balls 42. The upper surface of the annular adjustment block 41 is an inclined surface that slopes downward toward the center.

[0034] like Figure 4 As shown, the cross-sectional shape of the annular limiting groove 43 is an inverted V-shape, which is arranged along the circumference of the cup bottom mold 3. Several rolling balls 42 are located between the annular limiting groove 43 and the annular adjusting block 41. The upper and lower sides of the rolling balls 42 are in close contact with the inner wall of the annular limiting groove 43 and the inclined surface of the annular adjusting block 41, respectively. In this way, the rolling balls 42 will only roll along the predetermined trajectory, that is, the circular trajectory formed by the annular limiting groove 43 and the annular adjusting block 41. Since the annular adjusting block 41 is an inclined surface that is inclined towards the center, when the cup bottom tray shifts left or right during rotation, it will automatically correct its position, so that the cup bottom mold 3 is always on the same vertical central axis as the mold base 2, ensuring that the cup bottom tray rotates concentrically and coaxially with respect to the mold base 2.

[0035] Reference Figure 3 , The bottom surface of the accommodating groove 21 is also provided with a circular adjusting groove 22, and the annular adjusting block 41 is located in the circular adjusting groove 22, wherein the width of the annular adjusting block 41 is smaller than the width of the adjusting groove 22, and the diameter of the rolling ball 42 is also smaller than the width of the adjusting groove 22. The two sides of the annular adjusting block 41 and the inner wall of the adjusting groove 22 form a garbage groove 221, which is used to store the garbage and waste generated in the production process, so as to prevent the garbage and waste from accumulating on the inclined surface of the annular adjusting block 41 and affecting the rolling of the rolling ball 42. In addition, a certain amount is left when the rolling ball 42 rolls left and right along the inclined surface of the annular adjusting block 41, which can offset the coaxiality error of the fine die 1 and the die base 2 during the operation of the machine equipment, so as to realize the synchronous and flexible rotation of the special-shaped cup bottom supporting die 3 and the die base 2 within the range of 0-1.5mm.

[0036] It should be noted that the cup bottom supporting die 3 is not in contact with the bottom surface of the accommodating groove 21, and a certain gap is left, which is used to facilitate heat dissipation and prevent the cup bottom supporting die 3 from rubbing against the die base 2 during rotation. The rolling ball 42 can be a steel ball, an iron ball, etc., which is a hard and non-deformable material. If it is deformed, it will affect the smoothness of the rolling ball 42 during rolling.

[0037] The diameter of the accommodating groove 21 is also greater than the diameter of the cup bottom supporting die 3, so that a gap is left between the outer surface of the cup bottom supporting die 3 and the die base 2. It has two functions, one is to provide a water flow, and the other is to provide a certain amount of water flow during the movement of the cup bottom supporting die 3. It can offset the coaxiality error of the fine die 1 and the die base 2 during the operation of the machine equipment, so as to realize the synchronous and flexible rotation of the special-shaped cup bottom supporting die 3 and the glass cup within the range of 0-1.5mm, and prevent the cup bottom supporting die 3 from colliding with the die base 2 during the adjustment of the concentricity.

[0038] Reference Figure 3 In order to facilitate the water flow, a water accumulation groove 23 is also provided along the circumferential direction of the bottom surface of the accommodating groove 21, and the position of the water accumulation groove 23 is close to the inner wall of the accommodating groove 21. At least one drainage hole 24 is provided on the die base 2, which can drain water downward. The drainage hole 24 is communicated with the water accumulation groove 23, and the water flow will flow into the water accumulation groove 23 through the gap between the cup bottom supporting die 3 and the die base 2, and then be discharged through the drainage hole 24.

[0039] The small friction force will exist in the process of rolling ball 42 rolling along the slope of annular adjusting block 41, and therefore at least one oiling hole 26 is further formed on one side of mold base 2, which is downwardly inclined and communicates with garbage groove 221 in adjusting groove 22, and oil is added through oiling hole 26, and the oil will flow downward into garbage groove 221 and overflow annular adjusting block 41, so as to ensure smooth rolling of rolling ball 42 and reduce friction resistance, and the shape of oiling hole 26 is not particularly set, as long as oil can be smoothly added.

[0040] In the embodiment, the preferred material of cup bottom supporting mold 3 is brass, which has good heat dissipation, and a groove is formed on the bottom of cup bottom supporting mold 3 and is upwardly recessed, which has two effects, one is to reduce material loss, and the other is to increase the contact area of the bottom of cup bottom supporting mold 3 with air and enhance heat dissipation, and the groove forms a heat dissipation cavity with mold base 2. Figure 3 At least one exhaust hole 25 for downward exhaust is further formed on mold base 2, which communicates with the heat dissipation cavity, and air will be exhausted to the outside through exhaust hole 25 after being heated and expanded.

[0041] Since exhaust hole 25 is inclined, in order to facilitate the processing of exhaust hole 25, the middle of accommodating groove 21 on mold base 2 is a downwardly recessed conical concave surface, so that the inclined exhaust hole 25 can be more easily processed along the conical concave surface.

[0042] Embodiment 2

[0043] Reference Figure 5 , Figure 6 , Figure 7 The difference between embodiment 2 and embodiment 1 is that at least one limiting screw 5 is further provided on one side of the upper part of mold base 2, which is used to prevent cup bottom supporting mold 3 from being upwardly deviated in the process of rotation, and limiting screw 5 is threadedly connected with mold base 2, and a groove for accommodating the nut of limiting screw 5 is further formed on mold base 2 at the position of the screw, and a limiting portion 31 is formed along the circumferential direction of cup bottom supporting mold 3 and is downwardly recessed, one side of the nut of limiting screw 5 extends into accommodating groove 21 and gap-fits with limiting portion 31, which limits the position of cup bottom supporting mold 3 and at the same time leaves a certain amount of space for cup bottom supporting mold 3, so as not to affect the rotation of cup bottom supporting mold 3.

[0044] Embodiment 3

[0045] As Figure 8As shown, the difference between the embodiment 3 and the embodiment 2 lies in that the cross-sectional shape of the annular limiting groove 43 is semicircular, the annular limiting groove 43 is matched with the plurality of rolling balls 42, and the width of the semicircular annular limiting groove 43 can be consistent with the diameter of the rolling ball or smaller than the diameter of the rolling ball. If the width of the annular limiting groove 43 is smaller than the diameter of the rolling ball 42, the depth of the annular limiting groove 43 needs to be smaller than the radius of the rolling ball 42. In this way, the upper half of the rolling ball 42 can be embedded in the annular limiting groove 43 and connected with the annular limiting groove 43 in rolling. In actual work, the rolling ball 42 will roll along the circular track of the annular limiting groove 43 and will not slide out of the annular limiting groove 43.

[0046] The above technical solutions only reflect the preferred technical solutions of the present application, and some changes made by the person skilled in the art to some parts thereof also reflect the principles of the present application and are within the protection scope of the present application.

Claims

1. A glass cup forming mold with an irregularly shaped mold base, comprising a precision mold (1) formed by splicing two halves and a mold base (2) disposed at the bottom of the precision mold (1), characterized in that, The mold base (2) is provided with a cup bottom support mold (3) that can rotate concentrically relative to the mold base (2), and the upper part of the cup bottom support mold (3) has an irregular structure formed by upward protrusion; A concentric adjustment device (4) is provided between the cup bottom mold (3) and the mold base (2) to adjust the concentricity between the cup bottom mold (3) and the mold base (2) so that the cup bottom mold (3) can rotate concentrically and coaxially with respect to the mold base (2). The concentric adjustment device (4) includes an annular adjustment block (41) protruding upward along the mold base (2), a plurality of rolling balls (42) disposed on the upper surface of the annular adjustment block (41), and an annular limiting groove (43) disposed at the bottom of the cup bottom mold (3) and cooperating with the plurality of rolling balls (42). The annular adjustment block (41) has an inclined slope, and the plurality of rolling balls (42) are located between the annular limiting groove (43) and the annular adjustment block (41).

2. A glass cup forming mold with an irregularly shaped mold base according to claim 1, characterized in that, The cross-sectional shape of the annular limiting groove (43) is an inverted V shape. The annular limiting groove (43) is adapted to a plurality of rolling balls (42), and the upper side of the plurality of rolling balls (42) is in close contact with the groove wall of the annular limiting groove (43). The upper surface of the annular adjusting block (41) is an inclined plane that slopes towards the center of the circle, and several of the rolling balls (42) can roll along the inclined plane at the top of the annular adjusting block (41) in the circumferential direction.

3. A glass cup forming mold with an irregularly shaped mold base according to claim 1, characterized in that, The cross-sectional shape of the annular limiting groove (43) is semi-circular. The annular limiting groove (43) is adapted to a plurality of the rolling balls (42), and the plurality of the rolling balls (42) are rolledly connected to the annular limiting groove (43).

4. A glass cup forming mold with an irregularly shaped mold base according to claim 1, characterized in that, The upper middle part of the mold base (2) is provided with a receiving groove (21) for accommodating the cup bottom mold (3). There is a gap between the bottom surface of the cup bottom mold (3) and the receiving groove (21). The diameter of the receiving groove (21) is larger than the diameter of the cup bottom mold (3).

5. A glass cup forming mold with an irregularly shaped mold base according to claim 4, characterized in that, A circular adjustment groove (22) is provided in the receiving groove (21). The annular adjustment block (41) is located in the adjustment groove (22) and cooperates with the groove wall of the adjustment groove (22) to form a garbage trough (221) on both sides of the annular adjustment block (41). The width of the adjustment groove (22) is greater than the diameter of the ball (42).

6. A glass cup forming mold with an irregularly shaped mold base according to claim 5, characterized in that, The mold base (2) has an oil filling hole (26) on one side, which is inclined downward and communicates with the garbage trough (221).

7. A glass cup forming mold with an irregularly shaped mold base according to claim 4, characterized in that, A circular water collection trough (23) is provided along the circumferential direction of the bottom surface of the receiving groove (21), and at least one downward drainage hole (24) is provided on the mold base (2), and the drainage hole (24) is connected to the water collection trough (23).

8. A glass cup forming mold with an irregularly shaped mold base according to claim 1, characterized in that, The bottom of the cup base mold (3) has an upwardly recessed groove, and a heat dissipation cavity is formed between the groove and the mold base (2). The mold base (2) has at least one downwardly venting hole (25), and the venting hole (25) is connected to the heat dissipation cavity.

9. A glass cup forming mold with an irregularly shaped mold base according to claim 1, characterized in that, At least one limiting screw (5) is provided on one side of the mold base (2). The limiting screw (5) is threadedly connected to the mold base (2). The cup bottom mold (3) is recessed along the circumferential direction to form a limiting part (31). The nut of the limiting screw (5) and the limiting part (31) of the cup bottom mold (3) are in clearance fit to limit the position of the cup bottom mold (3).

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