A clamping and breaking mechanism for glass substrates with safety limits

By designing a double-set clamping arm structure and a synchronous gear system driven by a servo motor, double-sided clamping and safety limit of the glass substrate are achieved, solving the quality problem caused by uneven clamping force during the board breaking process, and improving the yield rate and the reliability of the board breaking.

CN117023962BActive Publication Date: 2025-10-28RAINBOW (HEFEI) LIQUID CRYSTAL GLASS CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Application Number
CN202310963698.6
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-31
Publication Date
2025-10-28
Estimated Expiration
2043-07-31

AI Technical Summary

Technical Problem

In the existing glass substrate breaking process, there are problems such as incomplete breaking or uneven force on the upper and lower sides of the substrate, which leads to poor breaking quality and high defective rate.

Method used

A glass substrate clamping and breaking mechanism was designed. It adopted a double-group clamping arm structure. The servo motor drove the synchronous gear to drive the clamping arms to achieve double-sided clamping of the glass substrate. Teeth and blank slots were set on the clamping arms to limit the clamping force, avoid damage caused by excessive pressure, and achieve safety limit.

Benefits of technology

The finished product rate and qualified rate of glass substrate breaking are improved, damage to the glass substrate caused by excessive clamping force is avoided, and the safety and reliability of the breaking process are ensured.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN117023962B_ABST
    Figure CN117023962B_ABST
Patent Text Reader

Abstract

This invention discloses a glass substrate clamping and breaking mechanism with safety limits, including a glass substrate breaking machine frame assembly. Glass substrate clamping arm assemblies are provided on both the left and right sides of the glass substrate breaking machine frame assembly. These clamping arm assemblies form a clamping structure on the glass substrate breaking machine frame assembly for breaking the glass substrate. The glass substrate breaking machine frame assembly drives the two sets of glass substrate clamping arm assemblies to simultaneously break outwards. The two sets of glass substrate clamping arm assemblies are located on both sides of the breaking line marked on the glass substrate. This clamping structure has a clamping limit to avoid damage to the glass substrate caused by excessive clamping force. A telescopic cylinder raises the toothed arm, forming a counter-rotating breaking structure between the two main arm breaking toothed wheels. In this way, the breaking action of clamping and fixing the glass substrate on both sides is achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This invention belongs to the field of glass substrate production technology, and specifically relates to a clamping and breaking mechanism for glass substrates with safety limits. Background Technology

[0002] Glass substrates are one of the key basic materials in the flat panel display industry. In the production process of glass substrates, it is necessary to scribing and then breaking the glass substrates. Currently, most glass substrates are broken by pressing. This process may result in incomplete breaking or uneven force on the upper and lower parts of the substrate, leading to poor breaking quality or a high defect rate. Therefore, there is an urgent need for a clamping and breaking mechanism with safety limits for glass substrates to solve the above problems. Summary of the Invention

[0003] To address the problems mentioned in the background section, this invention provides a clamping and breaking mechanism for glass substrates with safety limits, which facilitates the breaking of substrates.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a clamping and breaking mechanism for a glass substrate with safety limits, comprising a glass substrate breaking machine frame assembly, wherein glass substrate clamping arm assemblies are provided on both the left and right sides of the glass substrate breaking machine frame assembly, the glass substrate clamping arm assemblies forming a clamping structure for breaking the glass substrate on the glass substrate breaking machine frame assembly, the two sets of glass substrate clamping arm assemblies being located on both sides of the breaking lines on the glass substrate, and the glass substrate breaking machine frame assembly driving the two sets of glass substrate clamping arm assemblies to move outward synchronously;

[0005] The glass substrate breaking machine frame assembly includes a mounting frame base. A frame base fixing frame is fixedly installed on the top of the mounting frame base. Main arm breaking gears are rotatably installed on both sides of the frame base fixing frame. A telescopic cylinder is fixedly installed on the mounting frame base. A geared arm is installed on the top of the telescopic cylinder. A mounting seat cavity frame is fixedly installed on the main arm breaking gear. An L-shaped frame plate and a frame sliding sleeve are fixedly installed on the top and bottom of the mounting seat cavity frame. A servo motor and a front synchronous drive gear are installed on the mounting seat cavity frame. A push spring is installed on the L-shaped frame plate.

[0006] Preferably, the glass substrate clamping arm assembly includes a first clamping toothed arm and a second clamping toothed arm. One end of the first clamping toothed arm is fixedly provided with a pushing end platform, and the first clamping toothed arm is provided with a toothed arm vertical sliding groove. One end of the toothed arm vertical sliding groove is provided with clamping toothed teeth, and the other end of the toothed arm vertical sliding groove is provided with a blank sliding groove. A glass substrate clamping contact platform is fixedly provided on the outer wall of the first clamping toothed arm by a Z-shaped fixing rod. The structure of the second clamping toothed arm is the same as that of the first clamping toothed arm.

[0007] Preferably, the toothed arm is provided with teeth on both sides, and the teeth on both sides of the toothed arm mesh with the toothed wheels of the two main arm benders respectively. The toothed arm is lifted by the telescopic cylinder, and the two main arm benders form a bender rotation structure with opposite directions.

[0008] Preferably, the L-shaped frame plate and frame sliding seat at the top of the mounting cavity frame are misaligned with the L-shaped frame plate and frame sliding seat at the bottom of the mounting cavity frame, and the servo motor drives the front end synchronous drive gear to rotate bidirectionally.

[0009] Preferably, the first clamping toothed arm slides up and down within the frame sliding sleeve seat at the top of the mounting cavity, and the second clamping toothed arm slides up and down within the frame sliding sleeve seat at the bottom of the mounting cavity. The push springs respectively abut against the push end platform and the L-shaped frame plate. Through the push of the push springs, the first clamping toothed arm moves downward and the second clamping toothed arm moves upward.

[0010] Preferably, the teeth on both sides of the front synchronous drive gear mesh with the moving teeth of the clamping teeth on the first clamping tooth arm and the moving teeth of the clamping teeth on the second clamping tooth arm. Through the bidirectional rotation of the front synchronous drive gear, the glass substrate clamping contact platform on the first clamping tooth arm and the glass substrate clamping contact platform on the second clamping tooth arm perform clamping approach or unclamping away actions.

[0011] Preferably, the glass substrate clamping contact platform on the first clamping toothed arm and the glass substrate clamping contact platform on the second clamping toothed arm are arranged opposite each other to form a glass substrate breaking clamping structure.

[0012] Preferably, when the front synchronous drive gear drives the first clamping gear arm to rise through the moving teeth of the clamping gear, the upward limit of the glass substrate clamping contact platform on the first clamping gear arm is limited by the blanking setting of the blanking groove. When the front synchronous drive gear drives the second clamping gear arm to fall through the moving teeth of the clamping gear, the downward limit of the glass substrate clamping contact platform on the second clamping gear arm is limited by the blanking setting of the blanking groove. A gap for clamping the glass substrate is formed between the glass substrate clamping contact platforms on the first and second clamping gear arms. Through the above-mentioned limit action setting, a safety limiting structure is formed between the glass substrate clamping contact platforms on the first and second clamping gear arms to avoid excessive pressure damaging the glass substrate.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: The glass substrate clamping arm assembly of the present invention forms a clamping structure for glass substrate breaking on the glass substrate breaking machine frame assembly. The two sets of glass substrate clamping arm assemblies are located on both sides of the breaking line on the glass substrate, and this clamping structure has a clamping limit to avoid damage to the glass substrate caused by excessive clamping force. Its working principle is as follows: one end of the vertical sliding groove of the toothed arm is provided with clamping moving teeth, and the other end of the vertical sliding groove of the toothed arm is provided with a blank sliding groove. The teeth on both sides of the front synchronous drive gear are... The clamping teeth on the first and second clamping arms mesh with each other. Through the bidirectional rotation of the front-end synchronous drive gear, the glass substrate clamping contact platforms on the first and second clamping arms move closer to or further away from each other, thus achieving clamping and fixing during glass substrate breaking. When the front-end synchronous drive gear drives the first clamping arm to rise via the clamping teeth, the glass substrate clamping contact platforms on the first clamping arm move closer to or further away from each other due to the blanking setting of the blanking groove. The upward limit of the contact platform is limited. When the front synchronous drive gear drives the second clamping tooth arm to descend through the moving teeth of the clamping gear, the downward limit of the glass substrate clamping contact platform on the second clamping tooth arm is limited by the blanking setting of the blanking groove. A gap for clamping the glass substrate is formed between the glass substrate clamping contact platforms on the first and second clamping tooth arms. Through the setting of the above-mentioned limit action, a gap is formed between the glass substrate clamping contact platforms on the first and second clamping tooth arms to avoid pressure. The safety limiting structure prevents excessive force from damaging the glass substrate. This method ensures safety during the clamping and fixing of the glass substrate. Simultaneously, during the prying process, teeth are provided on both sides of the toothed arm, which mesh with the two main arm prying gears. A telescopic cylinder lifts the toothed arm, creating a prying rotation structure with opposing gears between the two main arm prying gears. This method achieves double-sided clamping and fixing of the glass substrate, changing the traditional single-sided force application method and further ensuring the yield and pass rate of the glass substrate during prying. Attached Figure Description

[0014] Figure 1 This is a perspective view of the invention in use;

[0015] Figure 2 This is a perspective view of the present invention;

[0016] Figure 3 This is an exploded view of the present invention;

[0017] Figure 4 This is a perspective view of the glass substrate breaking machine frame assembly of the present invention;

[0018] Figure 5This is an exploded view of the glass substrate breaking machine frame assembly of the present invention;

[0019] Figure 6 This is a perspective view of the glass substrate clamping arm assembly of the present invention;

[0020] In the figure: 100, Glass substrate breaking machine frame assembly; 101, Mounting frame base; 102, Frame base fixing frame; 103, Geared arm; 104, Telescopic cylinder; 105, Main arm breaking gear wheel; 106, Mounting seat cavity frame; 107, Front end synchronous drive gear; 108, Frame sliding sleeve base; 109, Push spring; 110, Frame L-shaped frame plate; 111, Servo motor; 200, Glass substrate clamping arm assembly; 201, First clamping geared arm; 202, Clamping gear teeth; 203, Push end table; 204, Blank slide groove; 205, Geared arm vertical slide groove; 206, Second clamping geared arm; 207, Z-shaped fixing rod; 208, Glass substrate clamping contact table; 300, Glass substrate; 400, Breaking scribing line. Detailed Implementation

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] Please see Figure 1-6 The present invention provides the following technical solution: a clamping and breaking mechanism for a glass substrate with safety limit, comprising a glass substrate breaking machine frame assembly 100, with glass substrate clamping arm assemblies 200 provided on both the left and right sides of the glass substrate breaking machine frame assembly 100, the glass substrate clamping arm assemblies 200 forming a clamping structure for breaking the glass substrate on the glass substrate breaking machine frame assembly 100, the two sets of glass substrate clamping arm assemblies 200 being located on both sides of the breaking line 400 on the glass substrate 300, and the glass substrate breaking machine frame assembly 100 driving the two sets of glass substrate clamping arm assemblies 200 to simultaneously break outwards;

[0023] The glass substrate breaking machine frame assembly 100 includes a mounting frame base 101. A frame base fixing frame 102 is fixedly mounted on the top of the mounting frame base 101. Main arm breaking gear wheels 105 are rotatably mounted on both sides of the frame base fixing frame 102. A telescopic cylinder 104 is fixedly mounted on the mounting frame base 101. A geared arm 103 is mounted on the top of the telescopic cylinder 104. A mounting cavity frame 106 is fixedly mounted on the main arm breaking gear wheels 105. An L-shaped frame plate 110 and a frame sliding sleeve seat 108 are fixedly mounted on the top and bottom of the mounting cavity frame 106. A servo motor 111 and a front end synchronous motor are mounted on the mounting cavity frame 106. The drive gear 107 and the L-shaped frame plate 110 of the frame are equipped with a push spring 109. The toothed arm 103 is provided with teeth on both sides. The teeth on both sides of the toothed arm 103 mesh with the two main arm swaying plate toothed wheels 105 respectively. The toothed arm 103 is lifted by the telescopic cylinder 104. The two main arm swaying plate toothed wheels 105 form a swaying plate rotation structure with opposite directions. The L-shaped frame plate 110 and the frame sliding sleeve seat 108 at the top of the mounting cavity frame 106 are misaligned with the L-shaped frame plate 110 and the frame sliding sleeve seat 108 at the bottom of the mounting cavity frame 106. The servo motor 111 drives the front synchronous drive gear 107 to rotate bidirectionally.

[0024] The glass substrate clamping arm assembly 200 includes a first clamping toothed arm 201 and a second clamping toothed arm 206. One end of the first clamping toothed arm 201 is fixedly provided with a pushing end platform 203, and a vertical sliding groove 205 is provided on the first clamping toothed arm 201. One end of the vertical sliding groove 205 is provided with a clamping tooth 202, and the other end of the vertical sliding groove 205 is provided with a blanking groove 204. The outer wall of the first clamping toothed arm 201... A glass substrate clamping contact platform 208 is fixedly mounted on the upper part by a Z-shaped fixing rod 207. The structure of the second clamping toothed arm 206 is the same as that of the first clamping toothed arm 201. The first clamping toothed arm 201 slides up and down in the frame sliding sleeve seat 108 at the top of the mounting cavity frame 106, and the second clamping toothed arm 206 slides up and down in the frame sliding sleeve seat 108 at the bottom of the mounting cavity frame 106. The push springs 109 respectively abut against the push end. On the platform 203 and the L-shaped frame plate 110, the first clamping toothed arm 201 moves downward by the push of the push spring 109, and the second clamping toothed arm 206 moves upward by the push of the push spring 109. The teeth on both sides of the front synchronous drive gear 107 mesh with the clamping toothed teeth 202 on the first clamping toothed arm 201 and the clamping toothed arm 206. Through the bidirectional rotation of the front synchronous drive gear 107, the glass substrate clamping contact platform 208 on the first clamping toothed arm 201 and the glass substrate clamping contact platform 208 on the second clamping toothed arm 206 form a clamping approach or unclamping away action. The glass substrate clamping contact platform 208 on the first clamping toothed arm 201 and the glass substrate clamping contact platform 208 on the second clamping toothed arm 206 are arranged opposite each other and form a glass substrate breaking clamping structure.

[0025] The working principle and usage process of this invention: The glass substrate clamping arm assembly 200 of this invention forms a clamping structure for glass substrate breaking on the glass substrate breaking machine frame assembly 100. Two sets of glass substrate clamping arm assemblies 200 are located on both sides of the breaking scribing line 400 on the glass substrate 300. This clamping structure has a clamping limit to avoid damage to the glass substrate caused by excessive clamping force. Its working principle is as follows: one end of the vertical sliding groove 205 of the toothed arm is provided with a clamping tooth 202, and the other end of the vertical sliding groove 205 of the toothed arm is provided with a blank sliding groove 204. The teeth on both sides of the synchronous drive gear 107 at the front end meet the first clamping tooth. The clamping teeth 202 on the boom 201 and the clamping teeth 202 on the second clamping boom 206 mesh. Through the bidirectional rotation of the front synchronous drive gear 107, the glass substrate clamping contact platform 208 on the first clamping boom 201 and the glass substrate clamping contact platform 208 on the second clamping boom 206 engage to clamp closer or release and move away. This achieves clamping and fixing during glass substrate breaking. When the front synchronous drive gear 107 drives the first clamping boom 201 to rise via the clamping teeth 202, the blanking groove 204 allows the glass substrate on the first clamping boom 201 to move. The upward limit of the clamping contact stage 208 is limited. When the front synchronous drive gear 107 drives the second clamping gear arm 206 to descend via the clamping tooth moving teeth 202, the downward limit of the glass substrate clamping contact stage 208 on the second clamping gear arm 206 is limited by the blanking setting of the blanking groove 204. A gap for clamping the glass substrate is formed between the glass substrate clamping contact stage 208 on the first clamping gear arm 201 and the glass substrate clamping contact stage 208 on the second clamping gear arm 206. Through the setting of the above-mentioned limit action, the glass substrate clamping contact stage 208 on the first clamping gear arm 201 and the glass substrate on the second clamping gear arm 206 are clamped. A safety limiting structure is formed between the clamping contact stages 208 to prevent excessive pressure from damaging the glass substrate. In this way, safety protection is achieved when the glass substrate is clamped and fixed. At the same time, when breaking the plate, teeth are provided on both sides of the toothed arm 103. The teeth on both sides of the toothed arm 103 mesh with the two main arm breaking plate toothed wheels 105 respectively. The telescopic cylinder 104 causes the toothed arm 103 to be lifted, and the two main arm breaking plate toothed wheels 105 form a breaking plate rotation structure with opposite sides. In this way, the breaking action of clamping and fixing the glass substrate on both sides is realized, changing the traditional breaking plate method of applying force on one side, and further ensuring the yield and pass rate of glass substrate breaking.

[0026] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A clamping and breaking mechanism for glass substrates with safety limits, comprising a glass substrate breaking frame assembly (100), characterized in that: The glass substrate breaking machine frame assembly (100) is provided with glass substrate clamping arm assemblies (200) on both the left and right sides. The glass substrate clamping arm assemblies (200) form a clamping structure on the glass substrate breaking machine frame assembly (100) for breaking glass substrates. The two sets of glass substrate clamping arm assemblies (200) are located on both sides of the breaking line (400) on the glass substrate (300). The glass substrate breaking machine frame assembly (100) drives the two sets of glass substrate clamping arm assemblies (200) to break outwards synchronously. The glass substrate breaking machine frame assembly (100) includes a mounting frame base (101), a frame base fixing frame (102) is fixedly installed on the top of the mounting frame base (101), and main arm breaking gears (105) are rotatably installed on both sides of the frame base fixing frame (102). A telescopic cylinder (104) is fixedly installed on the mounting frame base (101), and a geared arm (103) is installed on the top of the telescopic cylinder (104). A mounting seat cavity frame (106) is fixedly installed on the main arm breaking gears (105). A frame L-shaped frame plate (110) and a frame sliding sleeve seat (108) are fixedly installed on the top and bottom of the mounting seat cavity frame (106). A servo motor (111) and a front end synchronous drive gear (107) are installed on the mounting seat cavity frame (106). A push spring (109) is installed on the frame L-shaped frame plate (110). The glass substrate clamping arm assembly (200) includes a first clamping toothed arm (201) and a second clamping toothed arm (206). One end of the first clamping toothed arm (201) is fixedly provided with a push end platform (203), and the first clamping toothed arm (201) is provided with a toothed arm vertical slide groove (205). One end of the toothed arm vertical slide groove (205) is provided with a clamping toothed tooth (202), and the other end of the toothed arm vertical slide groove (205) is provided with a blank slide groove (204). A glass substrate clamping contact platform (208) is fixedly provided on the outer wall of the first clamping toothed arm (201) by a Z-shaped fixing rod (207). The structure of the second clamping toothed arm (206) is the same as that of the first clamping toothed arm (201).

2. The clamping and breaking mechanism for a glass substrate with safety limiting as described in claim 1, characterized in that: The toothed arm (103) is provided with teeth on both sides. The teeth on both sides of the toothed arm (103) mesh with the two main arm sway plate toothed wheels (105) respectively. The toothed arm (103) is lifted by the telescopic cylinder (104), and the two main arm sway plate toothed wheels (105) form a sway plate rotation structure with opposite directions.

3. The clamping and breaking mechanism for a glass substrate with safety limiting as described in claim 1, characterized in that: The L-shaped frame plate (110) and the frame sliding seat (108) at the top of the mounting cavity frame (106) are misaligned with the L-shaped frame plate (110) and the frame sliding seat (108) at the bottom of the mounting cavity frame (106), and the servo motor (111) drives the front synchronous drive gear (107) to rotate in both directions.

4. The clamping and breaking mechanism for a glass substrate with safety limiting as described in claim 1, characterized in that: The first clamping toothed arm (201) slides up and down in the frame sliding seat (108) at the top of the mounting cavity (106), and the second clamping toothed arm (206) slides up and down in the frame sliding seat (108) at the bottom of the mounting cavity (106). The push spring (109) abuts against the push end plate (203) and the L-shaped frame plate (110) of the frame respectively. Through the push of the push spring (109), the first clamping toothed arm (201) moves downward and the second clamping toothed arm (206) moves upward.

5. The clamping and breaking mechanism for a glass substrate with safety limiting as described in claim 1, characterized in that: The teeth on both sides of the front synchronous drive gear (107) mesh with the clamping moving teeth (202) on the first clamping moving arm (201) and the clamping moving teeth (202) on the second clamping moving arm (206). Through the bidirectional rotation of the front synchronous drive gear (107), the glass substrate clamping contact platform (208) on the first clamping moving arm (201) and the glass substrate clamping contact platform (208) on the second clamping moving arm (206) perform clamping close or unclamping away actions.

6. The clamping and breaking mechanism for a glass substrate with safety limiting according to claim 1, characterized in that: The glass substrate clamping contact platform (208) on the first clamping toothed arm (201) and the glass substrate clamping contact platform (208) on the second clamping toothed arm (206) are arranged opposite each other to form a glass substrate clamping structure.

7. The clamping and breaking mechanism for a glass substrate with safety limiting according to claim 1, characterized in that: When the front synchronous drive gear (107) drives the first clamping gear arm (201) to rise through the clamping tooth teeth (202), the upward limit of the glass substrate clamping contact stage (208) on the first clamping gear arm (201) is limited by the blanking setting of the blanking groove (204). When the front synchronous drive gear (107) drives the second clamping gear arm (206) to fall through the clamping tooth teeth (202), the glass substrate clamping contact stage (208) on the second clamping gear arm (206) is limited by the blanking setting of the blanking groove (204). The lowering limit of the holding contact stage (208) is limited, and a gap is formed between the glass substrate holding contact stage (208) on the first holding toothed arm (201) and the glass substrate holding contact stage (208) on the second holding toothed arm (206) to hold the glass substrate. Through the setting of the above-mentioned limit action, a safety limiting structure is formed between the glass substrate holding contact stage (208) on the first holding toothed arm (201) and the glass substrate holding contact stage (208) on the second holding toothed arm (206) to avoid excessive pressure damaging the glass substrate.

Citation Information

Patent Citations

  • Glass machining device and method

    CN110682450A

  • On-line breaking device for glass daughter board by overflow down-draw method

    CN217732971U

  • Crystallizer copper pipe clamp

    CN218051367U