Cover plate glass edge grinding device

Abstract

The invention provides a cover plate glass edge grinding device, and belongs to the technical field of grinding, the cover plate glass edge grinding device specifically comprises a top plate, a plurality of abrasive belt grinding mechanisms are correspondingly arranged at the bottom of the top plate, the abrasive belt grinding mechanism located in the middle is correspondingly installed in the middle of the bottom end of the top plate, and the abrasive belt grinding mechanisms located on the two sides can be transversely adjusted and moved; workpiece assembling mechanisms capable of transversely and elastically moving are correspondingly installed between the adjacent abrasive belt grinding mechanisms, and the abrasive belt grinding mechanisms are used for conducting edge grinding treatment on the cover plate glass on the workpiece assembling mechanisms. A short shaft driven to rotate is correspondingly installed at the top of the top plate, variable-pitch shafts are installed at the two ends of the short shaft in a transmission mode, and a plurality of moving seats are installed on the variable-pitch shafts in a matched mode and connected with abrasive belt grinding mechanisms located on the two sides of the bottom of the top plate correspondingly. The cover plate glass edge grinding device can grind cover plate glass with different sizes, widths and thicknesses at the same time, is flexible and convenient to use, high in working efficiency and high in practicability, and can better meet the edge grinding machining requirements of batch workpieces.

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 opened in the fixing rod, a movable rod is slidably installed in the sliding groove, the mounting seat is correspondingly installed on 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 provided on both sides of the top of the top plate, and one end of the pitch-changing shafts on both sides of the short shaft are rotatably mounted on the support seats on both sides through bearings; a fixing ring is provided on the other side of the pitch-changing shaft, and a sleeve is slidably sleeved on the pitch-changing shaft, and the sleeve is located on the inner side of the fixing ring on the pitch-changing shaft, and a compression spring is installed between the sleeve and the fixing ring; a plurality of penetrating strip grooves are provided around the inner hole of the sleeve, and a plurality of first clamping strips slidably matched with the strip grooves on the sleeve are provided around the outer wall on the other side of the pitch-changing shaft; The outer walls on both sides of the short shaft are respectively provided with a plurality of second clips that slide with the strip grooves on the sleeve. When the compression spring is in a natural state, the sleeve can be slidably installed on the short shaft. The adjustment mechanism includes a dial plate. A third motor is installed on the top of the top plate. The third motor is located on one side of the middle of the short shaft. The dial plate is installed on the output shaft on the top of the third motor. An extension plate is provided on the side of the sleeve close to the dial plate. When the third motor drives the dial plate to rotate toward one side, the sleeve can be pressed against the extension plate on the side to make the sleeve slide off the short shaft.

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

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention sets a plurality of abrasive belt grinding mechanisms, a workpiece assembly mechanism and an adjustment mechanism, and optimizes the specific structure of each mechanism. When in use, the distance between adjacent abrasive belt grinding mechanisms is first adjusted according to the size of the cover glass to be edge-grinded. The distance between all adjacent abrasive belt grinding mechanisms at the bottom of the top plate can be adjusted to be the same, so that a large number of cover glasses can be ground at one time. The distance between the abrasive belt grinding mechanisms on both sides of the bottom of the top plate can also be adjusted to be different, so that cover glasses of different widths can be ground 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. Then, the U-shaped strip on the workpiece assembly mechanism is removed, and the U-shaped strip on the workpiece assembly mechanism is adjusted. A plurality of cover glasses are elastically pressed and clamped on the U-shaped strips in sequence, and the U-shaped strips loaded with the cover glasses are tightly inserted into the U-shaped frame accordingly. When the sanding belt grinding mechanism moves, the workpiece assembly mechanism will synchronously and elastically move to the middle of the two sanding belt grinding mechanisms under the cooperation of the second spring. At this time, the sanding belts on the outer sides of the conveyor belts on the sanding belt grinding mechanisms on both sides will be elastically pressed on both sides of the cover glass. The second motor is turned on and the edges of both sides of the cover glass can be edge-grinded by using the driven sanding belts. The overall design is ingenious, and cover glasses of different sizes, widths and thicknesses can be ground at the same time. It is very flexible and convenient to use, with high work efficiency, can better meet the edge grinding processing needs of batch cover glasses, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic structural diagram of the edge grinding device of the present invention; Figure 2 is a schematic structural diagram of the edge grinding device of the present invention from another viewing angle; Figure 3 It is a structural schematic diagram of the abrasive belt grinding mechanism of the present invention; Figure 4 It is a structural schematic diagram of the workpiece assembly mechanism of the present invention; Figure 5 It is a partial enlarged schematic diagram of the side surface of the belt grinding mechanism and the workpiece assembly mechanism of the present invention in cooperation with each other; Figure 6 It is a partial enlarged schematic diagram of the second belt installed on the top plate of the present invention; Figure 7 It is a partial enlarged schematic diagram of the cooperation and installation of the short shaft and the variable pitch shaft of the present invention; Figure 8 It is a partially enlarged schematic diagram of the connection between the short shaft and the variable pitch shaft of the present invention.

[0015] In the figure: 1, top plate; 101, rectangular hole; 102, strip hole; 103, edge; 2, variable pitch shaft; 201, fixed ring; 202, first clamping strip; 3, support seat; 4, first motor; 5, first belt; 6, 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, shaft sleeve; 704, clamping plate; 705, connecting plate; 70 6. Slot; 707. U-shaped strip; 708. T-shaped block; 709. Elastic sponge; 8. Sliding block; 9. Moving seat; 901. Guide sleeve; 10. L-shaped plate; 11. Second motor; 12. Third motor; 13. Paddle plate; 14. Sliding rod; 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 strip; 24. Sleeve; 2401. Retaining ring; 2402. Extension plate; 25. Compression spring. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", "coaxial", "bottom", "one end", "top", "the other end", "one side", "front", "two ends", "both sides" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0018] 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.

[0019] 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.

[0020] 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

[0021] 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.

[0022] Specifically, the belt grinding mechanism 6 includes a fixed plate 601 and a U-shaped plate 602. The fixed 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 fixed plate 601 and the two sides of the U-shaped plate 602. A plurality of grooves are correspondingly arranged on the side walls on both sides of the fixed plate 601, and one end of the first spring 605 can be correspondingly connected to the bottom of the groove. A plurality of slide bars 14 are correspondingly installed at the bottom of the top plate 1. The two sides of the top plate 1 extend downward to form an edge 103, and the two ends of the slide bars 14 are correspondingly installed on the edge 103. A plurality of through holes 607 are spaced at corresponding positions on the fixed plate 601 and the U-shaped plate 602, and the slide bars 14 slide through the through holes 607 of the fixed plate 601 and the U-shaped plate 602. The middle part of the top of the fixed plate 601 is provided with a slider 8, and rectangular holes 101 are provided on both sides of the top plate 1. The slider 8 is slidably installed in the corresponding rectangular holes 101, and the bottom of the movable seat 9 is connected to the slider 8. The bottom of the U-shaped plate 602 is rotatably installed with a rotating shaft 603, and the rotating shaft 603 is provided with a first pulley, and a conveyor belt 604 is provided between the two first pulleys, and an abrasive belt is provided on the outer side of the conveyor belt 604.

[0023] 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.

[0024] 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.

[0025] The fixing block 17 is provided with a fixing rod 18, and a slide groove is provided in the fixing rod 18. A movable rod 19 is slidably installed in the slide groove. The mounting seat 20 is installed at the outer end of the movable rod 19, and a third spring is connected between the inner end of the movable rod 19 and the bottom of the slide groove. In this embodiment, the second belt 22 is installed on two adjacent first double-groove pulleys 16 and the second double-groove pulley 21 that can move elastically. When the sanding belt grinding mechanism 6 moves, the rotating shaft 603 on the adjacent sanding belt grinding mechanism 6 can still realize transmission, so that one motor can be used to drive all the conveyor belts 604 to perform transmission work, and the cover glass is edged by the sanding belt, which saves costs and reduces energy consumption.

[0026] Support seats 3 are provided on both sides of the top of the top plate 1, and 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. The pitch-changing shaft 2 is a relatively common component in the prior art, and the pitch-changing shaft 2 on both sides of the short shaft 23 is provided with spiral pitch-changing grooves, and the middle of the movable seat 9 corresponds to the guide sleeve 901, and the guide sleeve 901 is provided with a convex block, which is used to make the guide sleeve 901 fit and be mounted on the pitch-changing shaft 2. Rotating the pitch-changing shaft 2 will make the guide sleeve 901 thereon slide apart at equal intervals, thereby making the sanding belt grinding mechanism 6 on one side or both sides of the bottom of the top plate 1 slide apart at equal intervals.

[0027] A fixing ring 201 is provided on the other side of the pitch-changing shaft 2, and 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 retaining ring 2401 is provided around the side of the sleeve 24 close to the fixing ring 201. A compression spring 25 is installed between the retaining ring 2401 and the fixing ring 201 on the sleeve 24. A plurality of through-grooves are provided around the inner hole of the sleeve 24, and a plurality of first clamping strips 202 that are slidably matched with the strip grooves on the sleeve 24 are provided around the outer wall on the other side of the pitch-changing shaft 2. A plurality of second clamping strips 2301 that are slidably matched with the strip grooves on the sleeve 24 are provided around the outer walls on 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. The adjustment mechanism includes 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 at the top of the third motor 12, and an extension plate 2402 is correspondingly provided on the side of the retaining ring 2401 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 make the sleeve 24 slide off 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 be correspondingly swept across the rectangular hole 101 when rotating. In order to make the work smoother, the extension plate 2402 can also be omitted, and the diameter of the retaining ring 2401 can be correspondingly enlarged, so that the dial plate 13 can be correspondingly pressed against one side of the retaining ring 2401 to make the sleeve 24 slide. The length of the shift plate 13 should be determined according to the distance between the output shaft of the third motor 12 and the retaining ring 2401 . When the shift plate 13 is rotated to be perpendicular to the retaining ring 2401 , the sleeve 24 can be completely separated from one side of the short shaft 23 .

[0028] 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, and a first belt 5 is correspondingly installed between the second pulley and the third pulley. It is worth noting that each pulley and belt used in this embodiment can be used in conjunction with a synchronous pulley and a synchronous belt, and the transmission is more accurate.

[0029] When in use, the top plate 1 can be hoisted on the fixed frame through the columns around it, and a dust hood can be installed under the top plate 1, and the dust hood can be connected to the dust bag and the dust fan. Then, the distance between adjacent sanding belt grinding mechanisms 6 can be adjusted according to the size of the cover glass to be edged, and the sanding belt grinding mechanisms 6 on both sides of the bottom of the top plate 1 can be adjusted to move outwards at the same time, and the distance between adjacent sanding belt grinding mechanisms 6 is kept the same during movement, so that a large number of cover glasses can be ground at one time; the variable pitch shaft 2 on one side can also be controlled to stop rotating during the adjustment process, while the variable pitch shaft 2 on the other side continues to rotate, so that the sanding belt grinding mechanism 6 on one side of the bottom of the top plate 1 stops moving, while the sanding belt grinding mechanism 6 on the other side of the bottom of the top plate 1 continues to move outward, so that both 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. When the belt grinding mechanism 6 moves outward or inward, the workpiece assembly mechanism 7 will be synchronously and elastically moved to the middle of the two belt grinding mechanisms 6 under the cooperation of the second spring 15, and the U-shaped strip 707 on the workpiece assembly mechanism 7 will be removed. A plurality of cover glasses are sandwiched in sequence between the elastic sponges 709 on the upper and lower sides of the U-shaped strip 707. The elastic sponges 709 are used to elastically clamp the cover glasses, and flexible spacers can be sandwiched between adjacent cover glasses to avoid squeezing between adjacent cover glasses. Then, the U-shaped strips 707 loaded with cover glasses are tightly inserted into the U-shaped frame 701 in sequence. At this time, the sand belts on the outer sides of the conveyor belts 604 on the sand belt grinding mechanisms 6 on both sides will be elastically pressed against the two sides of the cover glasses. The second motor 11 is turned on, and the edges of the cover glasses on both sides can be grinded by the driven sand belts. It is worth noting that the elastic sponges 709 on the U-shaped strips 707 can clamp cover glasses of different thicknesses accordingly. When in use, cover glasses of different thicknesses can be clamped accordingly between the elastic sponges 709 on different U-shaped strips 707 as needed, which is more convenient to use.

[0030] The above-described embodiments only express a certain implementation mode of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the patent scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be based on the attached 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 pitch-changing shaft (2), and the pitch-changing 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 pitch-changing shafts (2) on both sides, and the adjustment mechanism can control the transmission between one of the pitch-changing shafts (2) and the short shaft (23) to be released.

2. The cover glass edge grinding device according to claim 1, characterized in that: 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).

3. The cover glass edge grinding device according to claim 2, 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).

4. The cover glass edge grinding device according to claim 3, 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).

5. The cover glass edge grinding device according to claim 3, 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).

6. The cover glass edge grinding device according to claim 5, 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.

7. 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).

8. 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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