CN212334995U - Glass molding press - Google Patents

Abstract

The utility model is suitable for a glass makes the field, provides a glass moulding press, include: the forming die comprises an upper die core and a lower die core; the mould pressing structure comprises an upper cover and a base which are respectively arranged up and down and can move in opposite directions and back to back, and the lower surface of the upper cover is fixed with the upper mould core; the centering structure comprises an XY fine tuning platform arranged on the base and a carrying template which is arranged on the XY fine tuning platform and is loaded with the lower mold core, and the XY fine tuning platform is used for driving the carrying template to move on an XY plane so as to center the upper mold core and the lower mold core; and the locking plate structure can limit the movement of the carrying template on an XY plane and can also remove the limitation on the carrying template when the XY fine adjustment platform drives the carrying template. The utility model provides a glass moulding press can effectively improve the centering precision of last mould benevolence and lower mould benevolence in glass forming process, reduces the finished product defective rate.

Description

Glass molding press

Technical Field

The utility model belongs to the glass makes the field, especially relates to a glass molding press.

Background

A glass molding press is a machine device in a special industry in the glass manufacturing industry, and glass raw materials are pressed and cooled for molding through an upper mold core and a lower mold core (the upper mold core and the lower mold core enclose to form a glass molding space) after being heated and melted.

The difficulty of the glass molding press is mainly the problem of the centering precision of the upper mold core and the lower mold core, the centering precision of the upper mold core and the lower mold core directly influences the quality of products, and particularly the centering precision of the optical lens on the upper surface and the lower surface is very high. Because the material expands with heat and contracts with cold under the high temperature environment and produces the deformation easily for go up mould benevolence and lower mould benevolence and produce the skew easily, and influence the quality of glass finished product.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned prior art not enough, provide a glass moulding press, it aims at improving the centering precision of last mould benevolence and lower mould benevolence in glass forming process.

A glass molding press comprising:

the forming die comprises an upper die core and a lower die core;

the mould pressing structure comprises an upper cover and a base which are respectively arranged up and down and can move in opposite directions and back to back, and the lower surface of the upper cover is fixed with the upper mould core;

the centering structure comprises an XY fine tuning platform arranged on the base and a carrying template which is arranged on the XY fine tuning platform and is loaded with the lower mold core, and the XY fine tuning platform is used for driving the carrying template to move on an XY plane so as to center the upper mold core and the lower mold core;

and the locking plate structure can limit the movement of the carrying template on an XY plane and can also remove the limitation on the carrying template when the XY fine adjustment platform drives the carrying template.

Optionally, the base has a bearing surface for bearing the template, and the locking plate structure increases the static friction between the template and the bearing surface by applying an external force to the template towards the bearing surface, and realizes to limit the movement of the template on the XY plane.

Optionally, the carrying template is supported by a ferromagnetic material, the locking plate structure is an electromagnet, and the locking plate structure is fixed on the base and is an electromagnet.

Optionally, the number of the lock plate structures is even, and the connecting lines of the lock plate structures form a symmetrical pattern along the X axis and the Y axis.

Optionally, the base has a mounting hole on the bearing surface for accommodating the lock plate structure.

Optionally, the upper surface of the locking plate structure is a plane and is flush with the bearing surface.

Optionally, a first positioning element is arranged on the lower surface of the upper cover, a second positioning element is arranged on the upper surface of the base, and when the upper cover is covered with the base, the first positioning element and the second positioning element are connected in a matched manner to limit the movement of the upper cover relative to the base on the XY plane.

Optionally, the number of the first positioning pieces is four, a rectangle is formed by connecting the four first positioning pieces, and the upper die core is located at the centroid of the rectangle.

Optionally, the glass molding press further includes an X probe for detecting a position of the carrier plate in an X axis and a Y probe for detecting a position of the carrier plate in a Y axis, and the XY fine-tuning platform drives the carrier plate to move to the origin of coordinates according to position information detected by the X probe and the Y probe.

Optionally, the X probes have two and are respectively used for detecting the positions of the front surface and the rear surface of the template-carrying plate on the X axis, and the Y probes have two and are respectively used for detecting the positions of the left surface and the right surface of the template-carrying plate on the Y axis.

The application provides a glass moulding press's beneficial effect lies in: compared with the prior art, the glass molding press can effectively improve the centering precision of the upper die core and the lower die core in the glass forming process, and reduce the reject ratio of finished products.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural view of a glass molding press provided in an embodiment of the present application;

FIG. 2 is a cross-sectional view of the structure of FIG. 1;

FIG. 3 is a schematic view of the attachment of the upper cover, the upper die core and the first positioning member in a glass molding press according to an embodiment of the present application;

fig. 4 is a partially disassembled schematic view of a glass molding press provided in an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

reference numerals	Name (R)	Reference numerals	Name (R)
				10	Forming die	41	First positioning piece
11	Upper die core	42	Second positioning piece
				12	Lower die core	50	Lock plate structure
20	Centering structure	61	X probe
				21	XY fine adjustment platform	62	Y probe
22	Loading template
				30	Mould pressing structure
31	Upper cover
				32	Base seat
321	Bearing surface

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system is defined according to the established in the figure: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

As shown in fig. 1 to 4, the present embodiment provides a glass molding press including a forming mold 10, a molding structure 30, a centering structure 20, and a locking plate structure 50.

The forming mold 10 includes an upper mold core 11 and a lower mold core 12, and the upper mold core 11 and the lower mold core 12 enclose to form a glass forming space.

The mold pressing structure 30 includes an upper cover 31 and a base 32 which are respectively disposed up and down and can move toward and away from each other, and an upper mold core 11 is fixed to a lower surface of the upper cover 31.

The centering structure 20 includes an XY fine adjustment platform 21 mounted on the base 32 and a loading plate 22 disposed on the XY fine adjustment platform 21 and loaded with the lower core 12, wherein the XY fine adjustment platform 21 is used for driving the loading plate 22 to move on an XY plane so as to center the upper core 11 and the lower core 12. It should be noted that the XY fine adjustment stage 21 is a conventional technique, and may be selected from the following disclosure: CN201520038915, patent name: a two-freedom combined full closed-loop nano-scale micro-motion platform. Other XY fine adjustment platform 21 products can be adopted as long as the nano-scale movement adjustment of the degree of freedom of the target structure (the template 22) in the XY two directions can be realized.

The lock plate structure 50 can restrict the movement of the template 22 on the XY plane, and can also release the restriction of the template 22 when the XY fine adjustment stage 21 drives the template 22.

Because the upper mold core 11 is fixedly connected with the upper cover 31, the lower mold core 12 is connected with the base 32 (the lower mold core 12 is fixedly connected with the carrying template 22, the carrying template 22 is fixed on the base 32 through the XY fine adjustment platform 21, and the upper cover 31 and the base 32 move towards each other and are covered to enable the upper mold core 11 and the lower mold core 12 to be in a centered initial state.

During the glass forming time, the glass raw material, the upper mold core 11 or the lower mold core 12 may be deformed or deviated in a high temperature environment. In the scheme, the upper mold core 11 is fixedly connected with the upper cover 31, the lower mold core 12 is fixedly connected with the loading template 22, and a certain movement adjusting space is formed between the loading template 22 and the XY fine adjustment platform 21, so that deformation or deviation is deviated from the lower mold core 12. Then, the XY fine adjustment platform 21 is used for correcting the deviation of the template 22, and the XY fine adjustment platform 21 drives the template to move on the XY plane, so that the lower mold core 12 returns to the state of being aligned with the upper mold core 11. The locking plate structure 50 presses the template 22 to increase the resistance to displacement of the template 22, thereby restricting the movement of the template 22 on the XY stage, and releasing the restriction of the template 22 when the XY fine adjustment stage 21 drives the movement of the template 22. The restraining of the load bearing plate 22 by the lock plate structure 50 may be by abutment with the load bearing plate 22, screwing, magnetic attraction, or other means. The arrangement of the locking plate structure 50 further improves the centering accuracy of the upper mold core 11 and the lower mold core 12 in the glass manufacturing process.

In conclusion, the glass molding press provided by the embodiment can effectively improve the centering precision of the upper mold core 11 and the lower mold core 12 in the glass molding process, and reduce the fraction defective of finished products.

The glass molding press provided by the embodiment can be suitable for compression molding and manufacturing of various glass products, including optical lenses, glassware and the like. The upper mold core 11 and the lower mold core 12 have excellent centering accuracy in the glass forming process, and are particularly suitable for manufacturing aspheric optical lenses.

In another embodiment of the present application, referring to fig. 2 and 4, the substrate 32 has a supporting surface 321 for supporting the template 22, and the locking plate structure 50 increases the static friction between the template 22 and the supporting surface 321 by applying an external force to the template 22 toward the supporting surface 321, and realizes to limit the movement of the template 22 on the XY plane. In the illustrated structure, the base 32 has a first cavity and a second cavity which are vertically arranged and communicated with each other, the first cavity is used for accommodating the XY fine adjustment platform 21, the load bearing plate 22 is placed in the second cavity, a load bearing surface 321 for bearing the load bearing plate 22 is formed between the first cavity and the second cavity, a clamping groove is formed in the lower surface of the load bearing plate 22, and the XY fine adjustment platform 21 has a clamping block which protrudes out of the load bearing surface 321 and is matched with the clamping groove to drive the load bearing plate 22 to move on the XY plane. In the structure shown in the figure, the peripheral side of the clamping block is abutted against the groove wall of the clamping groove, and a gap is reserved between the upper surface of the clamping block and the groove wall of the clamping groove. In other words, the height of the fixture block is smaller than the depth of the clamping groove. In this arrangement, the carrier plate 22 is supported by the supporting surface 321, and the XY fine adjustment platform 21 only needs to provide a force for driving the carrier plate 22 to move in the XY plane (horizontal plane) to the carrier plate 22. The driving force required to move the carrier plate 22 in the horizontal plane is much less than the downward pressure from the carrier plate 22 (the weight of the carrier plate 22 and the pressure from the lower mold core 12 against the carrier plate 22), which is beneficial to reducing the difficulty of adjusting the XY fine adjustment stage 21. In the structure shown in the figure, the clamping block is cylindrical, and correspondingly, the clamping groove is a cylindrical groove. The shape of the latch may be a prism or other shapes, which are not limited herein. Those skilled in the art can also replace the positions of the fixture block and the slot, so that the fixture block is disposed on the lower surface of the carrier plate 22, and the slot is opened on the XY fine adjustment platform 21. Or other connection method can be selected as long as the XY fine tuning stage 21 can drive the template 22 to move in the XY plane.

In another embodiment of the present application, the load bearing plate 22 is supported by a ferromagnetic material, and the locking plate structure 50 is fixed to the base 32 and is an electromagnet. The electromagnet has magnetism when energized to attract the carrier plate 22, and after de-energization, the magnetism disappears to lose the attraction force to the carrier plate 22. In the present embodiment, when the XY fine adjustment platform 21 performs position correction on the carrier plate 22, the electromagnet is powered off to release the limitation on the movement of the carrier plate 22, and after the XY fine adjustment platform 21 completes the position adjustment of the carrier plate 22, the electromagnet is powered on to apply a downward acting force to the carrier plate 22. Compared with the screw connection or other connection methods, the locking plate structure 50 and the template 22 are in non-contact magnetic attraction connection, and no unnecessary obstacle is generated to the structural design or movement of the template 22.

In another embodiment of the present application, referring to fig. 4, the locking plate structures 50 are electromagnets, there are even number of locking plate structures 50, and the connecting lines of the locking plate structures 50 form a symmetrical pattern along the X-axis and the Y-axis. In the illustrated structure, there are four locking plate structures 50, and the connecting lines of the four locking plate structures 50 are rectangular, and the center of the figure is located at the origin position of the XY axis. This arrangement ensures that the magnetic fields generated by the respective locking plate structures 50 act against the load bearing template 22 in the X-axis direction and the Y-axis direction to cancel each other out, and the overall force acts downward on the load bearing template 22.

In another embodiment of the present application, referring to fig. 4, the base 32 is provided with a mounting hole downwardly disposed on the supporting surface 321 for receiving the locking plate structure 50. The base 32 is provided with an avoiding hole downward when carrying objects, and the avoiding hole is communicated with the mounting hole and extends to the side surface of the base 32 so as to avoid an electric wire connected with the electromagnet. This arrangement can facilitate assembly of the electromagnet: the electromagnet and the electric wire are correspondingly placed into the mounting hole and the avoiding hole from the top.

In another embodiment of the present application, the upper surface of the locking plate structure 50 is a plane and is disposed flush with the bearing surface 321. In this arrangement, the upper surface of lock plate structure 50 also participates in supporting load template 22, increasing the friction surface of load template 22 to facilitate increased resistance to movement of load template 22.

In another embodiment of the present application, please refer to fig. 3 and fig. 4 together, a first positioning member 41 is disposed on a lower surface of the upper cover 31, a second positioning member 42 is disposed on an upper surface of the base 32, and when the upper cover 31 is closed with the base 32, the first positioning member 41 and the second positioning member 42 are connected in a matching manner to limit the movement of the upper cover 31 relative to the base 32 on the XY plane.

In the illustrated structure, the first positioning element 41 is a cylinder extending vertically, the second positioning element 42 is a shaft sleeve matched with the cylinder, and the base 32 is provided with a fixing hole for fixing the shaft sleeve. The cylinder is inserted into the sleeve to achieve the initial alignment and position limitation of the upper cover 31 and the base 32. The setting of axle sleeve is compared in directly with cylinder grafting fixed orifices, and the axle sleeve can independently select material and preparation, and the counter shaft cover internal diameter reduces with the cooperation dimensional tolerance of cylinder, adopts interference fit connection or welding to the connection of counter shaft cover and fixed orifices to do benefit to control and improve the counterpoint precision of upper cover 31 and base 32.

There are four first positioning members 41, and correspondingly, there are four second positioning members 42 and four fixing holes, and in other embodiments, there may be two, three or other numbers of first positioning members 41.

In another embodiment of the present application, referring to fig. 3 and 4, four first positioning members 41 are provided, and form a rectangle with the parallel connection line, and the upper mold core 11 is located at the centroid position of the rectangle. Correspondingly, the number of the second positioning parts 42 and the number of the fixing holes are four, the carrier plate 22 is located at the centroid position of the rectangle formed by the four second positioning parts 42, and the center of the lower mold core 12 is overlapped with the center of the carrier plate 22 on the XY plane projection. In other words, the four first positioning members 41 are used as the positioning reference of the upper mold core 11, and the four second positioning members 42 are used as the positioning reference of the lower mold core 12, so as to check and control the positions of the upper mold core 11 and the lower mold core 12, and thus, the initial alignment of the upper mold core 11 and the lower mold core 12 is realized.

In another embodiment of the present application, referring to fig. 1, 2 and 4 together, the glass molding press further includes an X-probe 61 for detecting the position of the moving plate in the X-axis and a Y-probe 62 for detecting the position of the moving plate in the Y-axis, and the XY fine adjustment stage 21 drives the moving plate to move toward the origin of coordinates according to the position information detected by the X-probe 61 and the Y-probe 62. The X probe 61 and the Y probe 62 acquire actual position information of the carrier template 22 and feed back the position information to the XY fine adjustment platform 21 to form closed-loop control, and the XY fine adjustment platform 21 judges an offset error and corrects and compensates the offset error. It should be noted that a sensor is disposed inside the XY fine adjustment platform 21 for sensing the position information of the mobile station (see patent document: CN 201520038915). In this embodiment, the carrier plate 22 is engaged with the mobile station (the engaging slot and the engaging block are engaged) and moves along with the mobile station. The X probe 61 and the Y probe 62 are arranged to obtain the position information of the template 22, and the position information is fed back to the XY fine tuning platform 21 to participate in the calibration so as to avoid the influence of the deviation between the template 22 and the moving platform on the centering accuracy of the lower mold core 12.

In the illustrated configuration, the X probes 61 have two and are respectively used for detecting the positions of the front surface and the rear surface of the template carrier 22 in the X axis, and the Y probes 62 have two and are respectively used for detecting the positions of the left surface and the right surface of the template carrier 22 in the Y axis. The X probe 61 and the Y probe 62 are both abutted against the carrier plate 22 (for modeling reasons, there is a gap between the X probe 61 and the carrier plate 22, the Y probe 62 and the carrier plate 22 extend into the carrier plate 22, and in an actual structure, both the X probe 61 and the Y probe 62 are abutted against the carrier plate 22), the X probe 61 has an elastic portion abutted against the carrier plate 22, and when the carrier plate 22 moves along the X axis, the elastic portion is elastically deformed and the deformation value is fed back to the XY fine adjustment platform 21. The structure of the Y probe 62 is similar to that of the X probe 61, and is not described in detail.

In other embodiments, the X-probe 61 and the Y-probe 62 may also measure the position of the carrier plate 22 by infrared distance measurement or other methods, which are not limited herein.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A glass molding press, comprising:

the forming die (10) comprises an upper die core (11) and a lower die core (12);

the mould pressing structure (30) comprises an upper cover (31) and a base (32) which are respectively arranged up and down and can move in opposite directions and back to back, and the lower surface of the upper cover (31) is fixed with the upper mould core (11);

the centering structure (20) comprises an XY fine adjustment platform (21) arranged on the base (32) and a carrying template (22) which is arranged on the XY fine adjustment platform (21) and carries the lower die core (12), and the XY fine adjustment platform (21) is used for driving the carrying template (22) to move on an XY plane so as to center the upper die core (11) and the lower die core (12);

and a lock plate structure (50) which can restrict the movement of the template carrying plate (22) on an XY plane and can release the restriction on the template carrying plate (22) when the XY fine adjustment platform (21) drives the template carrying plate (22).

2. The glass molding press of claim 1, wherein the base (32) has a bearing surface (321) that bears the carrier plate (22), and the lock plate structure (50) increases the static friction between the carrier plate (22) and the bearing surface (321) by applying an external force to the carrier plate (22) toward the bearing surface (321) and achieves the restraint of the carrier plate (22) from moving in the XY plane.

3. The glass molding press as recited in claim 2, wherein the carrier plate (22) is made of a ferromagnetic material;

the locking plate structure (50) is fixed on the base (32) and is an electromagnet.

4. The glass molding press of claim 3, wherein there are an even number of the lock plate structures (50), and wherein the lock plate structures (50) are connected to form a symmetrical pattern along both the X-axis and the Y-axis.

5. The glass molding press of claim 3, wherein the base (32) has downwardly facing mounting holes in the bearing surface (321) for receiving the lock plate structure (50).

6. The glass molding press of claim 5, wherein the upper surface of the lock plate structure (50) is planar and is disposed flush with the bearing surface (321).

7. The glass molding press as recited in claim 1, wherein the lower surface of the upper cover (31) is provided with a first positioning member (41), the upper surface of the base (32) is provided with a second positioning member (42), and when the upper cover (31) is closed with the base (32), the first positioning member (41) and the second positioning member (42) are cooperatively connected to limit the movement of the upper cover (31) relative to the base (32) in the XY plane.

8. The glass molding press as claimed in claim 7, wherein the first positioning members (41) are four in number and form a rectangle in parallel, the upper core (11) being located at the centroid of the rectangle.

9. The glass molding press of any one of claims 1 to 8, further comprising an X probe (61) for detecting a position of the carrier plate (22) in an X axis and a Y probe (62) for detecting a position of the carrier plate (22) in a Y axis, the XY fine adjustment stage (21) moving the carrier plate (22) toward a origin of coordinates based on positional information detected by the X probe (61) and the Y probe (62).

10. The glass molding press of claim 9, wherein the X probes (61) have two and are used to detect the position of the front and rear surfaces of the carrier plate (22) in the X-axis, respectively, and the Y probes (62) have two and are used to detect the position of the left and right surfaces of the carrier plate (22) in the Y-axis, respectively.

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