An edge grinding device for cover glass

Abstract

The present invention provides a cover glass edge grinding device, which belongs to the field of grinding technology, and specifically includes a top plate, wherein a plurality of sanding belt grinding mechanisms are correspondingly arranged at the bottom of the top plate, the sanding belt grinding mechanism located in the middle is correspondingly installed at the middle of the bottom end of the top plate, and the plurality of sanding belt grinding mechanisms located on both sides can be adjusted and moved laterally; a workpiece assembly mechanism capable of laterally elastic movement is correspondingly installed between adjacent sanding belt grinding mechanisms, and the sanding belt grinding mechanism is used to perform edge grinding on the cover glass on the workpiece assembly mechanism; a short shaft driven to rotate is correspondingly installed at the top of the top plate, and variable pitch shafts are installed at both ends of the short shaft, and a plurality of moving seats are matched and installed on the variable pitch shaft, and the plurality of moving seats are respectively connected to the sanding belt grinding mechanisms located on both sides of the bottom of the top plate. The present invention can grind cover glasses of different sizes, widths and thicknesses at the same time, is flexible and convenient to use, has high work efficiency, can better meet the edge grinding processing needs of batch workpieces, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, and in particular to a cover glass edge grinding device. Background Art

[0002] Cover glass is the main raw material for manufacturing touch screens, and its application areas are very wide, including laptops, tablets, smart phones, GPS (Global Navigation Satellite System), POS (Point of Sale Terminal), digital photo frames, game consoles and other flat panel display terminals. Due to the different application scenarios of cover glass and different installation equipment, the thickness of different cover glass is also different.

[0003] At present, in the manufacturing process of cover glass, since the cover glass will have certain burrs and roughness on its edges after cutting, it is usually necessary to grind the edges of the cover glass after cutting to make the cover glass flat and smooth. However, the existing edge grinding equipment generally uses a grinding wheel to grind one side of the cover glass. This method is relatively troublesome and relatively inefficient, and cannot meet the edge grinding processing needs of batch cover glass. Therefore, it is necessary to propose an improvement measure to solve the above technical problems. Summary of the invention

[0004] The present invention provides a cover glass edge grinding device, which is used to solve the technical problems raised in the above background technology.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cover glass edge grinding device, comprising a top plate, a plurality of sanding belt grinding mechanisms are correspondingly arranged at the bottom of the top plate, the sanding belt grinding mechanism located in the middle is correspondingly installed at the middle part of the bottom end of the top plate, and the plurality of sanding belt grinding mechanisms located on both sides can be adjusted and moved laterally; a workpiece assembly mechanism that can be elastically moved laterally is correspondingly installed between adjacent sanding belt grinding mechanisms, and the sanding belt grinding mechanism is used to perform edge grinding on the cover glass on the workpiece assembly mechanism; a short shaft driven to rotate is correspondingly installed at the top of the top plate, and variable pitch shafts are transmission-installed at both ends of the short shaft, and a plurality of moving seats are cooperated with and installed on the variable pitch shaft, and the plurality of moving seats are respectively connected to the sanding belt grinding mechanisms located on both sides of the bottom of the top plate; an adjustment mechanism is correspondingly arranged between the short shaft and the variable pitch shafts on both sides, and the adjustment mechanism can control the transmission between one of the variable pitch shafts and the short shaft to be released.

[0006] Preferably, the belt grinding mechanism comprises a fixed plate and a U-shaped plate, the fixed plate is slidably installed in the U-shaped plate, and a plurality of first springs are installed at intervals between the two sides of the fixed plate and the two sides of the U-shaped plate; a plurality of sliding rods are correspondingly installed at the bottom of the top plate, and the sliding rods slide through the fixed plate and the U-shaped plate accordingly; a sliding block is correspondingly provided at the middle part of the top end of the fixed plate, and rectangular holes are correspondingly opened on both sides of the top plate, and the sliding blocks are slidably installed in the corresponding rectangular holes, and the bottom of the movable seat is correspondingly connected to the sliding block; rotating shafts are rotatably installed on both sides of the bottom of the U-shaped plate, and a first pulley is correspondingly installed on the rotating shaft, a conveyor belt is correspondingly installed between the two first pulleys, and an abrasive belt is correspondingly installed on the outer side of the conveyor belt.

[0007] Preferably, the workpiece assembly mechanism includes a U-shaped frame and a U-shaped strip, the U-shaped frame is correspondingly provided with a plurality of connecting blocks, the connecting blocks are correspondingly installed with shaft sleeves, and the shaft sleeves are slidably installed on the corresponding sliding rods; elastic sponges are correspondingly provided on the upper and lower sides of the U-shaped strip, and a plurality of cover glasses are sandwiched between the two elastic sponges in sequence, and the U-shaped strip is correspondingly plugged into the bottom of the U-shaped frame; first fixed strips are correspondingly provided on the upper sides of the conveyor belt, and the top of the first fixed strip is correspondingly connected to the U-shaped plate, and the two sides of the U-shaped frame are respectively connected to the first fixed strips on the belt grinding mechanisms on both sides thereof through a plurality of second springs.

[0008] Preferably, a card plate is correspondingly provided at the lower part of one side of the U-shaped frame, one end of the card plate is connected to the end of one side of the U-shaped frame through a connecting plate, and a card slot is correspondingly provided on the other side of the U-shaped frame; one side of the U-shaped strip can be correspondingly inserted between the U-shaped frame and the card plate, and a T-shaped card block is correspondingly provided on the top of the other side of the U-shaped strip, and the T-shaped card block can be correspondingly inserted into the card slot.

[0009] Preferably, a strip hole is opened at a corresponding position on one side of the top plate, a waist-shaped hole is opened at a position on one side of the fixing plate corresponding to the strip hole, and the rotating shaft on one side of the U-shaped plate passes through the waist-shaped hole and the strip hole correspondingly; a first double-groove pulley is installed correspondingly on the upper part of the rotating shaft in the strip hole; a fixed block is provided on the side of the top of the sliding block close to the strip hole, and a mounting seat that can be elastically moved is installed on the fixed block, and a second double-groove pulley is rotatably installed on the mounting seat; the first double-groove pulleys on two adjacent belt grinding mechanisms are connected to the corresponding second double-groove pulleys on the belt grinding mechanism on the outer side through a second belt; an L-shaped plate is provided in the middle part of one side of the strip hole on the top plate, and a second motor is installed correspondingly on the top of the L-shaped plate, and the output shaft of the second motor is transmission-connected to the top of the middle rotating shaft in the strip hole.

[0010] Preferably, a fixing rod is correspondingly provided on the fixing block, a sliding groove is correspondingly formed in the fixing rod, a movable rod is slidably installed in the sliding groove, the mounting seat is correspondingly installed at the outer end of the movable rod, and a third spring is correspondingly connected between the inner end of the movable rod and the bottom of the sliding groove.

[0011] Preferably, support seats are correspondingly provided on both sides of the top of the top plate, and one end of the variable pitch shaft on both sides of the short shaft is rotatably installed on the support seats on both sides through bearings respectively; a fixing ring is correspondingly provided on the other side of the variable pitch shaft, a sleeve is slidably sleeved on the variable pitch shaft, the sleeve is correspondingly located on the inner side of the fixing ring on the variable pitch shaft, and a compression spring is correspondingly installed between the sleeve and the fixing ring; a plurality of through strip-shaped grooves are correspondingly formed around the inner hole of the sleeve, and a plurality of first clamping strips slidably matched with the strip-shaped grooves on the sleeve are correspondingly provided around the outer wall of the other side of the variable pitch shaft; a plurality of second clamping strips slidably matched with the strip-shaped grooves on the sleeve are correspondingly provided around the outer walls of both sides of the short shaft. When the compression spring is in a natural state, the sleeve can be slidably installed on the short shaft; the adjusting mechanism includes a dial plate, a third motor is correspondingly installed on the top of the top plate, the third motor is correspondingly located on one side of the middle of the short shaft, the dial plate is correspondingly installed on the output shaft of the top of the third motor, an extension plate is correspondingly provided on one side of the sleeve close to the dial plate, and by driving the dial plate to rotate towards one side by the third motor, it can be abutted against the extension plate on this side to make the sleeve slide off the short shaft.

[0012] Preferably, a second pulley is correspondingly installed in the middle of the short shaft, a first motor is correspondingly installed on one side of the top of the top plate, a third pulley is correspondingly installed on the output shaft of the first motor, and a first belt is correspondingly installed between the second pulley and the third pulley.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] The present invention optimizes the specific structures of multiple abrasive belt grinding mechanisms, workpiece assembly mechanisms, and adjustment mechanisms. During use, first adjust the distance between adjacent abrasive belt grinding mechanisms according to the size of the cover glass to be edge-ground. It can be adjusted so that the distances between all adjacent abrasive belt grinding mechanisms at the bottom of the top plate are the same, enabling the simultaneous grinding of a large number of cover glasses at one time. It can also be adjusted so that the distances between the abrasive belt grinding mechanisms on both sides at the bottom of the top plate are different, enabling the simultaneous grinding of cover glasses of different widths, or one side is responsible for grinding the short sides of the cover glasses and the other side is responsible for grinding the long sides of the cover glasses. Then, remove the U-shaped strip on the workpiece assembly mechanism, elastically press and clamp multiple cover glasses on the U-shaped strip in sequence, and tightly insert the U-shaped strip loaded with the cover glasses into the U-shaped frame correspondingly. Since when the abrasive belt grinding mechanism moves, the workpiece assembly mechanism will elastically move synchronously to the middle of the two abrasive belt grinding mechanisms under the cooperation of the second spring, at this time, the abrasive belts on the outer sides of the conveyor belts of the two abrasive belt grinding mechanisms will elastically press on both sides of the cover glass. Start the second motor, and the edge of both sides of the cover glass can be edge-ground by the driven abrasive belts. Its overall design is ingenious, capable of simultaneously grinding cover glasses of different sizes, widths, and thicknesses, being very flexible and convenient to use, with high working efficiency, better meeting the edge-grinding processing requirements of batch cover glasses, and having strong practicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the edge-grinding device of the present invention;

[0016] Figure 2 is a schematic structural diagram of another perspective of the edge-grinding device of the present invention;

[0017] Figure 3 is a schematic structural diagram of the abrasive belt grinding mechanism of the present invention;

[0018] Figure 4 is a schematic structural diagram of the workpiece assembly mechanism of the present invention;

[0019] Figure 5 is a partially enlarged side view schematic diagram of the cooperative installation of the abrasive belt grinding mechanism and the workpiece assembly mechanism of the present invention;

[0020] Figure 6 is a partially enlarged schematic diagram of the cooperative installation of the second belt on the top plate of the present invention;

[0021] Figure 7 is a partially enlarged schematic diagram of the cooperative installation of the short shaft and the variable pitch shaft of the present invention;

[0022] Figure 8 is a partially enlarged schematic diagram of the connection part of the short shaft and the variable pitch shaft of the present invention.

[0023] In the figure: 1. Top plate; 101. Rectangular hole; 102. Strip-shaped hole; 103. Edge; 2. Variable pitch shaft; 201. Fixed ring; 202. First clamping strip; 3. Support base; 4. First motor; 5. First belt; 6. Sand belt grinding mechanism; 601. Fixed plate; 602. U-shaped plate; 603. Rotating shaft; 604. Conveyor belt; 605. First spring; 606. First fixed strip plate; 607. Through hole; 608. Waist-shaped hole; 7. Workpiece assembly mechanism; 701. U-shaped frame; 702. Connecting block; 703. Bush; 704. Clamping plate; 705. Connecting plate; 706. Card slot; 707. U-shaped strip plate; 708. T-shaped clamping block; 709. Elastic sponge; 8. Slide block; 9. Moving seat; 901. Guide sleeve; 10. L-shaped plate; 11. Second motor; 12. Third motor; 13. Pushing plate; 14. Slide bar; 15. Second spring; 16. First double-groove pulley; 17. Fixed block; 18. Fixed rod; 19. Movable rod; 20. Mounting seat; 21. Second double-groove pulley; 22. Second belt; 23. Short shaft; 2301. Second clamping strip; 24. Sleeve; 2401. Retaining ring; 2402. Extension plate; 25. Compression spring. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front part", "both ends", "both sides", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "provided with", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Reference is now made to the accompanying drawings, wherein the purpose of each illustration is only to show certain exemplary embodiments and is not intended to limit the present invention. In each of the drawings, the same reference numerals represent the same or corresponding parts. The dimensions and proportions in each of the drawings are also only for illustration and should not be interpreted as limiting the present invention, and these dimensions may be exaggerated relative to the actual product. Example

[0029] See also Figure 1-8 A cover glass edge grinding device of this embodiment comprises a top plate 1, and a plurality of sanding belt grinding mechanisms 6 are correspondingly arranged at the bottom of the top plate 1. In this embodiment, the number of the sanding belt grinding mechanisms 6 can be odd, and the sanding belt grinding mechanism 6 located in the middle is correspondingly installed at the middle of the bottom end of the top plate 1, and the plurality of sanding belt grinding mechanisms 6 located on both sides can be adjusted and moved laterally. A workpiece assembly mechanism 7 capable of laterally elastic movement is correspondingly installed between adjacent sanding belt grinding mechanisms 6, and the sanding belt grinding mechanism 6 is used to perform edge grinding on the cover glass on the workpiece assembly mechanism 7. A short shaft 23 driven to rotate is correspondingly installed at the top of the top plate 1, and a variable pitch shaft 2 is installed at both ends of the short shaft 23. A plurality of moving seats 9 are matched and installed on the variable pitch shaft 2, and the plurality of moving seats 9 are respectively connected to the sanding belt grinding mechanisms 6 located on both sides of the bottom of the top plate 1. An adjustment mechanism is correspondingly arranged between the short shaft 23 and the variable pitch shafts 2 on both sides, and the adjustment mechanism can control the transmission between one of the variable pitch shafts 2 and the short shaft 23 to be released.

[0030] Specifically, the abrasive belt grinding mechanism 6 includes a fixing plate 601 and a U-shaped plate 602. The fixing plate 601 is slidably installed in the U-shaped plate 602, and a plurality of first springs 605 are installed at intervals between the two sides of the fixing plate 601 and the two sides of the U-shaped plate 602. A plurality of grooves are correspondingly provided on the side walls of the two sides of the fixing plate 601, and one end of the first spring 605 can be correspondingly connected to the bottom of the groove. A plurality of sliding rods 14 are correspondingly installed at the bottom of the top plate 1. Two sides of the top plate 1 extend downward to form edges 103, and both ends of the sliding rod 14 are correspondingly installed on the edges 103. A plurality of through holes 607 are provided at intervals at corresponding positions on the fixing plate 601 and the U-shaped plate 602, and the sliding rod 14 correspondingly slides through the through holes 607 of the fixing plate 601 and the U-shaped plate 602. A slider 8 is correspondingly provided in the middle of the top end of the fixing plate 601. Rectangular holes 101 are correspondingly opened on both sides of the top plate 1, and the slider 8 is slidably installed in the corresponding rectangular hole 101. The bottom of the moving seat 9 is correspondingly connected to the slider 8. Rotating shafts 603 are rotatably installed on both sides of the bottom of the U-shaped plate 602. First pulleys are correspondingly installed on the rotating shafts 603. A conveyor belt 604 is installed between the two first pulleys, and an abrasive belt is correspondingly installed on the outer side of the conveyor belt 604.

[0031] The workpiece assembly mechanism 7 includes a U-shaped frame 701 and a U-shaped strip 707. The U-shaped frame 701 is provided with a plurality of connection blocks 702. The connection blocks 702 are provided with shaft sleeves 703. The shaft sleeves 703 are slidably installed on the corresponding slide rods 14. The upper and lower sides of the U-shaped strip 707 are provided with elastic sponges 709. The surface of the elastic sponge 709 can also be wrapped with a layer of velvet. Multiple cover glasses are sandwiched between the two elastic sponges 709 in sequence. The cover glasses are elastically clamped by the elastic sponges 709 and the surface of the cover glasses is protected. Flexible spacers can be sandwiched between adjacent cover glasses to avoid squeezing between adjacent cover glasses. The U-shaped strip 707 is correspondingly plugged into the bottom of the U-shaped frame 701. Specifically, a clamping plate 704 is provided at the lower part of one side of the U-shaped frame 701, and one end of the clamping plate 704 is connected to one end of the U-shaped frame 701 through a connecting plate 705, and a clamping groove 706 is provided at the other side of the U-shaped frame 701; one side of the U-shaped strip 707 can be plugged between the U-shaped frame 701 and the clamping plate 704, and a T-shaped clamping block 708 is provided at the top of the other side of the U-shaped strip 707, and the T-shaped clamping block 708 can be plugged into the clamping groove 706. It is worth noting that a sealing block can be provided at one side of the U-shaped strip 707 close to the T-shaped clamping block 708, so that the U-shaped strip 707 has a rectangular frame structure, so as to better prevent the cover glass clamped thereon from falling off. A first fixed strip 606 is correspondingly provided above both sides of the conveyor belt 604, and the top of the first fixed strip 606 is correspondingly connected to the U-shaped plate 602, and the two sides of the U-shaped frame 701 are respectively connected to the first fixed strip 606 on the belt grinding mechanism 6 on both sides thereof through a plurality of second springs 15.

[0032] A strip hole 102 is provided at a corresponding position on one side of the top plate 1, a waist-shaped hole 608 is provided at a corresponding position on one side of the fixing plate 601 and the strip hole 102, and a rotating shaft 603 on one side of the U-shaped plate 602 passes through the waist-shaped hole 608 and the strip hole 102. A first double-groove pulley 16 is correspondingly installed on the upper part of the rotating shaft 603 in the strip hole 102. A fixing block 17 is correspondingly provided on one side of the top of the slider 8 near the strip hole 102, and a mounting seat 20 capable of elastic movement is correspondingly installed on the fixing block 17, and a second double-groove pulley 21 is correspondingly rotatably installed on the mounting seat 20. The first double-groove pulleys 16 on the two adjacent belt grinding mechanisms 6 are connected to the corresponding second double-groove pulleys 21 on the outer side of the belt grinding mechanism 6 through a second belt 22. An L-shaped plate 10 is provided in the middle of one side of the strip hole 102 on the top plate 1. A second motor 11 is installed on the top of the L-shaped plate 10. The output shaft of the second motor 11 is transmission-connected to the top of the middle rotating shaft 603 in the strip hole 102.

[0033] A fixing rod 18 is correspondingly provided on the fixing block 17. A chute is correspondingly formed in the fixing rod 18. A movable rod 19 is slidably installed in the chute. The mounting seat 20 is correspondingly installed at the outer end of the movable rod 19. A third spring is correspondingly connected between the inner end of the movable rod 19 and the bottom of the chute. In this embodiment, by correspondingly installing the second belt 22 on two adjacent first double-groove pulleys 16 and the elastically movable second double-groove pulley 21, when the abrasive belt grinding mechanism 6 moves, the rotating shafts 603 on the adjacent abrasive belt grinding mechanisms 6 can still achieve transmission, so as to drive all the conveyor belts 604 to perform transmission work by using one motor, and grind the edge of the cover glass with the abrasive belt, saving costs and reducing energy consumption.

[0034] Support seats 3 are correspondingly provided on both sides of the top of the top plate 1. One end of the variable pitch shaft 2 on both sides of the short shaft 23 is respectively rotatably installed on the support seats 3 on both sides through bearings. The variable pitch shaft 2 is a relatively common component in the prior art. Variable pitch grooves in a spiral shape are correspondingly provided on the variable pitch shafts 2 on both sides of the short shaft 23. A guide sleeve 901 is correspondingly provided in the middle of the moving seat 9. A convex block is correspondingly provided in the guide sleeve 901. The guide sleeve 901 is fitted and installed on the variable pitch shaft 2 by using the convex block. Rotating the variable pitch shaft 2 will cause the guide sleeve 901 thereon to slide apart at equal intervals, so that the abrasive belt grinding mechanisms 6 on one side or both sides of the bottom of the top plate 1 slide apart at equal intervals.

[0035] A fixed ring 201 is correspondingly provided on the other side of the pitch-changing shaft 2. A sleeve 24 is slidably sleeved on the pitch-changing shaft 2 correspondingly. The sleeve 24 is correspondingly located on the inner side of the fixed ring 201 on the pitch-changing shaft 2. A retaining ring 2401 is correspondingly provided around one side of the sleeve 24 close to the fixed ring 201. A compression spring 25 is correspondingly installed between the retaining ring 2401 on the sleeve 24 and the fixed ring 201. A plurality of through strip-shaped grooves are correspondingly formed around the inner hole of the sleeve 24. A plurality of first clamping strips 202 that are slidably matched with the strip-shaped grooves on the sleeve 24 are correspondingly provided around the outer wall of the other side of the pitch-changing shaft 2. A plurality of second clamping strips 2301 that are slidably matched with the strip-shaped grooves on the sleeve 24 are correspondingly provided around the outer walls of both sides of the short shaft 23. When the compression spring 25 is in a natural state, the sleeve 24 can be slidably installed on the short shaft 23 correspondingly. The adjusting mechanism includes a dial 13. A third motor 12 is correspondingly installed on the top of the top plate 1. The third motor 12 is correspondingly located on one side of the middle of the short shaft 23. The dial 13 is correspondingly installed on the output shaft at the top of the third motor 12. An extension plate 2402 is correspondingly provided on one side of the retaining ring 2401 of the sleeve 24 close to the dial 13. By driving the dial 13 to rotate towards one side by the third motor 12, it can be abutted against the extension plate 2402 on this side to make the sleeve 24 slide away from the short shaft 23. It is worth noting that the length of the extension plate 2402 should not be too long, and the extension plate 2402 can correspondingly sweep across the rectangular hole 101 when rotating. In order to make the work proceed more smoothly, the extension plate 2402 can also not be provided, but the diameter of the retaining ring 2401 can be correspondingly enlarged so that the dial 13 can be correspondingly abutted against one side of the retaining ring 2401 to make the sleeve 24 slide. The length of the dial 13 should be determined according to the distance between the output shaft of the third motor 12 and the retaining ring 2401. When the dial 13 rotates to be perpendicular to the retaining ring 2401, the sleeve 24 can completely break away from one side of the short shaft 23.

[0036] A second pulley is correspondingly installed in the middle of the short shaft 23. A first motor 4 is correspondingly installed on one side of the top of the top plate 1. A third pulley is correspondingly installed on the output shaft of the first motor 4. A first belt 5 is correspondingly installed between the second pulley and the third pulley. It is worth noting that all the pulleys and belts used in this embodiment can correspondingly use synchronous pulleys and synchronous belts in cooperation, making the transmission more accurate.

[0037] During use, the four sides of the top plate 1 can be hoisted onto the fixing frame through the columns correspondingly, and a dust suction hood can be installed correspondingly below the top plate 1. The dust suction hood is correspondingly connected to the dust suction bag and the dust suction fan. Then, according to the size of the cover glass to be edge-ground, the distance between adjacent abrasive belt grinding mechanisms 6 is adjusted. The abrasive belt grinding mechanisms 6 on both sides of the bottom of the top plate 1 can be adjusted to move outwards correspondingly at the same time. When moving, the distance between adjacent abrasive belt grinding mechanisms 6 is kept the same, so as to be able to grind a large number of cover glasses at one time; it is also possible to control the variable pitch shaft 2 on one side to stop rotating during the adjustment process, while the variable pitch shaft 2 on the other side continues to rotate, so that the abrasive belt grinding mechanism 6 on one side of the bottom of the top plate 1 stops moving, while the abrasive belt grinding mechanism 6 on the other side of the bottom of the top plate 1 continues to move outwards, so that the two sides of the bottom of the top plate 1 can grind cover glasses of different widths at the same time, or one side is responsible for grinding the short side of the cover glass, and the other side is responsible for grinding the long side of the cover glass, which is more convenient to use. Since when the abrasive belt grinding mechanism 6 moves outwards or inwards, the workpiece assembly mechanism 7 will elastically move synchronously to the middle of the two abrasive belt grinding mechanisms 6 under the cooperation of the second spring 15. Remove the U-shaped strip 707 on the workpiece assembly mechanism 7. Between the elastic sponges 709 on the upper and lower sides in the U-shaped strip 707, multiple cover glasses are correspondingly clamped in sequence. The elastic sponges 709 are used to elastically clamp the cover glasses, and a flexible spacer can be correspondingly clamped between adjacent cover glasses to prevent extrusion between adjacent cover glasses. Then, the U-shaped strip 707 loaded with the cover glasses is correspondingly and tightly inserted into the U-shaped frame 701. At this time, the abrasive belts on the outer sides of the conveyor belts 604 on both sides of the abrasive belt grinding mechanism 6 will elastically press on both sides of the cover glass. Turn on the second motor 11, and the edge of both sides of the cover glass can be edge-ground by the driving abrasive belts. It should be noted that different thicknesses of cover glasses can be correspondingly clamped between the elastic sponges 709 on the U-shaped strip 707. During use, different thicknesses of cover glasses can be correspondingly clamped between the elastic sponges 709 on different U-shaped strips 707 according to needs, which is more convenient to use.

[0038] The above embodiments only represent a certain implementation manner of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the patent of the present invention; it should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention; therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A cover glass edge grinding device, comprising a top plate (1), characterized in that: The bottom of the top plate (1) is provided with a plurality of sanding belt grinding mechanisms (6), the middle sanding belt grinding mechanism (6) is installed at the middle of the bottom end of the top plate (1), and the plurality of sanding belt grinding mechanisms (6) on both sides can be adjusted and moved laterally; a workpiece assembly mechanism (7) capable of laterally elastic movement is installed between adjacent sanding belt grinding mechanisms (6), and the sanding belt grinding mechanism (6) is used to perform edge grinding on the cover glass on the workpiece assembly mechanism (7); a short shaft (23) driven to rotate is installed at the top of the top plate (1), both ends of the short shaft (23) are transmission-mounted with a variable pitch shaft (2), and the variable pitch shaft (2) is matched with a plurality of movable seats (9), and the plurality of movable seats (9) are respectively connected to the sanding belt grinding mechanisms (6) on both sides of the bottom of the top plate (1); an adjustment mechanism is provided between the short shaft (23) and the variable pitch shafts (2) on both sides, and the adjustment mechanism can control the transmission between one of the variable pitch shafts (2) and the short shaft (23) to be released; The belt grinding mechanism (6) comprises a fixed plate (601) and a U-shaped plate (602), wherein the fixed plate (601) is slidably mounted in the U-shaped plate (602), and a plurality of first springs (605) are installed at intervals between the two sides of the fixed plate (601) and the two sides of the U-shaped plate (602); a plurality of sliding rods (14) are correspondingly installed at the bottom of the top plate (1), and the sliding rods (14) correspondingly slide through the fixed plate (601) and the U-shaped plate (602); the middle part of the top end of the fixed plate (601) corresponds to A slider (8) is provided, and rectangular holes (101) are correspondingly opened on both sides of the top plate (1), and the slider (8) is slidably installed in the corresponding rectangular holes (101), and the bottom of the movable seat (9) is correspondingly connected to the slider (8); rotating shafts (603) are rotatably installed on both sides of the bottom of the U-shaped plate (602), and a first pulley is correspondingly installed on the rotating shaft (603), a conveyor belt (604) is correspondingly installed between the two first pulleys, and an abrasive belt is correspondingly installed on the outer side of the conveyor belt (604).

2. The cover glass edge grinding device according to claim 1, characterized in that: The workpiece assembly mechanism (7) comprises a U-shaped frame (701) and a U-shaped strip (707); the U-shaped frame (701) is provided with a plurality of connection blocks (702) correspondingly, the connection blocks (702) are provided with shaft sleeves (703) correspondingly, and the shaft sleeves (703) are slidably mounted on the corresponding sliding rods (14); elastic sponges (709) are provided correspondingly on the upper and lower sides of the U-shaped strip (707), a plurality of cover glasses are sandwiched between the two elastic sponges (709) in sequence, and the U-shaped strip (707) is correspondingly plugged into the bottom of the U-shaped frame (701); first fixed strips (606) are provided correspondingly above the two sides of the conveyor belt (604), the top of the first fixed strip (606) is correspondingly connected to the U-shaped plate (602), and the two sides of the U-shaped frame (701) are respectively connected to the first fixed strips (606) on the sanding belt grinding mechanism (6) on both sides thereof through a plurality of second springs (15).

3. The cover glass edge grinding device according to claim 2, characterized in that: A card plate (704) is correspondingly provided at the lower part of one side of the U-shaped frame (701); one end of the card plate (704) is connected to one end of the U-shaped frame (701) via a connecting plate (705); a card slot (706) is correspondingly provided at the other side of the U-shaped frame (701); one side of the U-shaped strip (707) can be correspondingly plugged between the U-shaped frame (701) and the card plate (704); a T-shaped card block (708) is correspondingly provided at the top of the other side of the U-shaped strip (707); and the T-shaped card block (708) can be correspondingly plugged into the card slot (706).

4. The cover glass edge grinding device according to claim 2, characterized in that: A strip hole (102) is provided at a corresponding position on one side of the top plate (1), a waist-shaped hole (608) is provided at a corresponding position on one side of the fixing plate (601) and the strip hole (102), and a rotating shaft (603) on one side of the U-shaped plate (602) passes through the waist-shaped hole (608) and the strip hole (102); a first double-groove pulley (16) is correspondingly installed on the upper part of the rotating shaft (603) in the strip hole (102); a fixing block (17) is correspondingly provided on the top side of the slider (8) near the strip hole (102), and a mounting seat (206) capable of elastic movement is correspondingly installed on the fixing block (17). 0), a second double-groove pulley (21) is rotatably mounted on the mounting seat (20); the first double-groove pulleys (16) on two adjacent belt grinding mechanisms (6) are correspondingly connected to the second double-groove pulleys (21) on the belt grinding mechanism (6) on the outer side via a second belt (22); an L-shaped plate (10) is correspondingly provided in the middle of one side of the strip hole (102) on the top plate (1), a second motor (11) is correspondingly mounted on the top of the L-shaped plate (10), and the output shaft of the second motor (11) is correspondingly transmission-connected to the top of the middlemost rotating shaft (603) in the strip hole (102).

5. The cover glass edge grinding device according to claim 4, characterized in that: A fixing rod (18) is correspondingly provided on the fixing block (17), a sliding groove is correspondingly provided in the fixing rod (18), a movable rod (19) is slidably installed in the sliding groove, the mounting seat (20) is correspondingly installed at the outer end of the movable rod (19), and a third spring is correspondingly connected between the inner end of the movable rod (19) and the bottom of the sliding groove.

6. The cover glass edge grinding device according to claim 1, characterized in that: Support seats (3) are provided on both sides of the top of the top plate (1); one end of the pitch-changing shaft (2) on both sides of the short shaft (23) is rotatably mounted on the support seats (3) on both sides through bearings; a fixing ring (201) is provided on the other side of the pitch-changing shaft (2); a sleeve (24) is slidably sleeved on the pitch-changing shaft (2); the sleeve (24) is located on the inner side of the fixing ring (201) on the pitch-changing shaft (2); a compression spring (25) is installed between the sleeve (24) and the fixing ring (201); a plurality of through-grooves are provided around the inner hole of the sleeve (24); a plurality of first clamping strips (202) slidably matched with the strip grooves on the sleeve (24) are provided around the outer wall of the other side of the pitch-changing shaft (2); the outer walls on both sides of the short shaft (23) are provided with a plurality of first clamping strips (202) slidably matched with the strip grooves on the sleeve (24); A plurality of second clamping strips (2301) are correspondingly arranged around the wall and are slidably matched with the strip grooves on the sleeve (24); when the compression spring (25) is in a natural state, the sleeve (24) can be slidably installed on the short shaft (23); the adjustment mechanism comprises a dial plate (13); a third motor (12) is correspondingly installed on the top of the top plate (1); the third motor (12) is correspondingly located on one side of the middle of the short shaft (23); the dial plate (13) is correspondingly installed on the output shaft of the top of the third motor (12); an extension plate (2402) is correspondingly arranged on the side of the sleeve (24) close to the dial plate (13); the dial plate (13) is driven by the third motor (12) to rotate toward one side, so that the sleeve (24) can be pressed against the extension plate (2402) on the side to slide off the short shaft (23).

7. The cover glass edge grinding device according to claim 1, characterized in that: A second pulley is correspondingly mounted on the middle of the short shaft (23), a first motor (4) is correspondingly mounted on one side of the top of the top plate (1), a third pulley is correspondingly mounted on the output shaft of the first motor (4), and a first belt (5) is correspondingly mounted between the second pulley and the third pulley.

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