Positioning device for edging glass pot cover

Abstract

The positioning device is characterized by comprising a base, a smoothing plate and the like, the base is installed in a production line, lifting assemblies are installed at the front end and the rear end of the base respectively, a conveying belt is jointly installed at the tops of the two lifting assemblies, and grinding mechanisms are installed on the left side of the middle of the base. A plurality of mounting frames are connected to the middle of the base, the smoothing plate is rotationally connected between the two mounting frames, a pressing plate is connected to the middle of the lifting assembly support and is in extrusion fit with the smoothing plate, the smoothing plate surrounds the pressing plate, a torsional spring sleeves a rotating shaft of the pressing plate, and a clamping assembly used for clamping a pot cover is arranged at the top of the smoothing plate. The top of the smoothing plate is provided with an adjusting assembly matched with pot covers of different diameters. The pot cover flattening device has the advantages that through the linkage design of the lifting assembly and the pressing plate, when the conveying belt descends, the pressing plate synchronously presses downwards and drives the flattening plates to rotate through the rolling wheels, the four L-shaped flattening plates push pot covers to gather towards the center, and the purpose of pot cover positioning is achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of glass product processing equipment, and in particular to a positioning device for grinding the edge of a glass pot lid. Background Technology

[0002] Glass pot lids, as an essential accessory in modern kitchen cookware, are typically made of high-temperature tempered glass, offering advantages such as transparency, heat resistance, and impact resistance. To ensure safety and structural stability, the edges of pot lids generally require edging. However, before edging, the cut edges of the glass pot lid must undergo precision grinding to eliminate burrs, micro-cracks, and irregular contours generated during cutting. Otherwise, the fit of the edging will be directly affected, and stress concentration at the glass edges may even lead to breakage.

[0003] Currently, the industry commonly uses automated edge grinding equipment for processing. The process flow is as follows: The cut circular glass lid is placed on a conveyor belt and transported to the grinding wheel station via a conveyor system. This conveyor system is equipped with a lifting mechanism, which can raise or tilt the conveyor belt plane as a whole via hydraulic or pneumatic devices, and has segmented control functionality, meaning the front and rear sections of the conveyor belt can be raised and lowered independently. When a sensor detects that the lid has reached the predetermined position, the front section of the conveyor belt descends, causing the lid to contact the rotating platform below, while the rear section remains raised to block subsequent workpieces, thus achieving positioning and stopping of a single lid. During the grinding stage, the rotating platform drives the lid to rotate, and the surrounding elastic floating grinding heads grind the lid's edge using spring pressure.

[0004] However, during the segmented lifting and positioning process of the conveyor belt, the lid is prone to slippage due to inertia, and the mechanical clearance between the rotating platform and the conveyor belt causes radial displacement of the lid's stopping position. The eccentric lid generates centrifugal oscillation during rotation. Although the elastic grinding head can follow the edge contour through spring deformation, the actual contact pressure varies significantly at different phase angles. Specifically, the increased spring compression near the centrifugal point leads to excessive grinding force, easily causing localized over-grinding or even edge chipping. This dynamic pressure imbalance directly results in uneven edge chamfering, a high defect rate, and negatively impacts product quality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a positioning device for grinding the edge of a glass pot lid.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a positioning device for grinding the edge of a glass pot lid, including a base and a flat plate. The base is installed in a production line. Lifting components are installed at both the front and rear ends of the base. A conveyor belt is installed on the top of the two lifting components. Grinding mechanisms are installed on the left and right sides of the middle of the base. A pressing component is installed on the base. The pressing component is divided into upper and lower parts for clamping the pot lid. Several mounting brackets are connected to the middle of the base. The flat plate is rotatably connected between two mounting brackets. The flat plate is an "L" plate. A pressure plate is connected to the middle of the lifting component bracket. The pressure plate and the flat plate are pressed together. The flat plate surrounds the pressure plate. A torsion spring is sleeved at the pivot of the pressure plate. One end of the torsion spring is connected to the mounting bracket, and the other end of the torsion spring is connected to the flat plate. A clamping component for clamping the pot lid is provided on the top of the flat plate. An adjustment component for adapting to pot lids of different diameters is provided on the top of the flat plate.

[0007] A further preferred embodiment of this utility model is as follows: the buffer assembly includes a buffer plate, the flat plate is slidably connected to a guide rod, the end of the guide rod is connected to the buffer plate, the guide rod is sleeved with a return spring, one end of the return spring is connected to the flat plate, and the other end of the return spring is connected to the buffer plate.

[0008] A further preferred embodiment of this utility model is: the adjustment assembly includes an adjustment plate, a fastening screw is threadedly connected to the top of the buffer plate, the adjustment plate has a sliding groove, the fastening screw is slidably connected to the sliding groove, and the adjustment plate is connected to the buffer plate through the fastening screw.

[0009] A further preferred embodiment of this utility model is: a positioning pin is connected to the top of the flat plate, and the adjusting plate is slidably connected to the positioning pin through the groove.

[0010] A further preferred embodiment of this utility model is that the buffer plate is connected to a protective pad.

[0011] A further preferred embodiment of this utility model is: a protective sleeve is provided between the mounting bracket and the flat plate, and the flat plate wraps around the torsion spring.

[0012] A further preferred embodiment of this utility model is that a roller is rotatably connected at the connection between the flat plate and the pressure plate.

[0013] A further preferred embodiment of this utility model is: a plurality of rubber pillars are connected to the middle of the base, and the top of the rubber pillars are matched with the flat plate for limiting.

[0014] Compared with the prior art, the advantages of this utility model are: 1. Through the linkage design of the lifting component and the pressure plate, when the conveyor belt descends, the pressure plate presses down synchronously and drives the smoothing plate to rotate through the rollers, so that the four sets of L-shaped smoothing plates push the pot lid to the center and achieve the purpose of pot lid positioning.

[0015] 2. By cooperating with the sliding guide rod through the variable stiffness reset spring in the buffer assembly, when the flat plate contacts the pot lid, the spring initially absorbs the impact in a soft state, and then the rigid section maintains stable pressure, ensuring that all points on the circumference of the pot lid bear uniform pressure.

[0016] 3. The adjustment assembly adopts a double-track guide structure with a sliding groove and a positioning pin. The operator only needs to loosen the fastening screw to slide the adjustment plate. The positioning pin ensures that the adjustment plate moves in parallel, which can be adapted to pot lids of different diameters. Attached Figure Description

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the mounting bracket and the flat plate of this utility model;

[0020] Figure 3 This is a schematic diagram of the installation structure of the buffer plate and guide rod of this utility model;

[0021] Figure 4 This is an exploded view showing the connection relationship between the adjusting plate and the fastening screws of this utility model.

[0022] In the diagram: 1. Base, 2. Lifting assembly, 3. Conveyor belt, 4. Grinding mechanism, 5. Pressing assembly, 6. Mounting bracket, 7. Flat plate, 71. Pressure plate, 8. Torsion spring, 9. Buffer plate, 10. Guide rod, 11. Return spring, 12. Adjusting plate, 13. Slide groove, 14. Fastening screw, 15. Positioning pin, 16. Protective pad, 17. Protective sleeve, 18. Roller, 19. Rubber column. Detailed Implementation

[0023] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0024] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0025] This embodiment mainly describes the structure of the positioning device, as follows:

[0026] A positioning device for grinding the edge of a glass pot lid, such as Figure 1 and Figure 2 As shown, the assembly includes a base 1, lifting components 2, a conveyor belt 3, a grinding mechanism 4, a pressing component 5, a mounting frame 6, a smoothing plate 7, a pressure plate 71, a torsion spring 8, a buffer component, and an adjusting component. The base 1 is installed in the production line. Lifting components 2 are installed at both the front and rear ends of the base 1. The conveyor belt 3 is installed on the top of the two lifting components 2. Grinding mechanisms 4 are installed on both sides of the middle left side of the base 1. The pressing component 5 is installed on the base 1. The pressing component 5 consists of an upper mold and a lower mold. The lower mold is fixed to the base 1, and the upper mold can be lifted and rotated by a servo motor. The two work together to clamp the pot lid and drive its rotation. The base 1 has several mounting brackets 6 connected in the middle. The flat plate 7 is rotatably connected between two mounting brackets 6. The flat plate 7 is an "L" plate. The right angle of the "L" plate is connected to the mounting bracket 6. The lifting component 2 has a pressure plate 71 connected in the middle. The pressure plate 71 and the flat plate 7 are pressed together. The flat plate 7 surrounds the pressure plate 71. A torsion spring 8 is sleeved at the pivot of the pressure plate 71. One end of the torsion spring 8 is connected to the mounting bracket 6, and the other end of the torsion spring 8 is connected to the flat plate 7. The top of the flat plate 7 is equipped with a clamping component for clamping the pot lid. The top of the flat plate 7 is equipped with an adjustment component to adapt to pot lids of different diameters.

[0027] like Figure 2 and Figure 3 As shown, the buffer assembly includes a buffer plate 9, a guide rod 10, and a return spring 11. The guide rod 10 is slidably connected to the flat plate 7. The end of the guide rod 10 is connected to the buffer plate 9. The return spring 11 is sleeved on the guide rod 10. One end of the return spring 11 is connected to the flat plate 7, and the other end of the return spring 11 is connected to the buffer plate 9.

[0028] like Figure 2 and Figure 4 As shown, the adjustment assembly includes an adjustment plate 12 and a fastening screw 14. The top of the buffer plate 9 is threaded with the fastening screw 14. The adjustment plate 12 has a sliding groove 13. The fastening screw 14 is slidably connected to the sliding groove 13. The adjustment plate 12 is connected to the buffer plate 9 through the fastening screw 14.

[0029] like Figure 2 and Figure 4As shown, it also includes a positioning pin 15. The top of the flat plate 7 is connected to the positioning pin 15. The adjusting plate 12 is slidably connected to the positioning pin 15 through the slide groove 13. When the operator adjusts the position of the adjusting plate 12, the positioning pin 15 moves along a specific trajectory of the slide groove 13, and the movement direction of the adjusting plate 12 is restricted by mechanical constraints.

[0030] like Figure 2 As shown, it also includes a protective pad 16. The buffer plate 9 is connected to the protective pad 16. When the smoothing plate 7 gathers towards the center, the surface of the protective pad 16 wraps around the edge of the pot lid in a flexible deformation manner. During the polishing process, the protective pad 16 generates circumferential friction force as the pot lid rotates, and at the same time, it maintains a constant contact pressure under the action of the return spring 11.

[0031] like Figure 3 As shown, it also includes a protective sleeve 17. A protective sleeve 17 is provided between the mounting bracket 6 and the flat plate 7. The flat plate 7 wraps around the torsion spring 8. When the torsion spring 8 is torn, the protective sleeve 17 will undergo elastic deformation, while isolating the intrusion of external coolant and dust.

[0032] like Figure 2 As shown, it also includes a roller 18. The roller 18 is rotatably connected at the connection between the flat plate 7 and the pressure plate 71. The roller 18 is mounted on the contact surface between the flat plate 7 and the pressure plate 71 through a bearing. When the pressure plate 71 is pressed down, its lower surface contacts the outer edge of the roller 18, converting the vertical linear motion into the rolling of the roller 18.

[0033] like Figure 1 As shown, it also includes rubber pillars 19. Several rubber pillars 19 are connected to the middle of the base 1. The top of the rubber pillars 19 is matched with the limiting plate 7. When the plate 7 is driven to reset by the torsion spring 8, the swing angle of the plate 7 is physically blocked by the rubber pillars 19. The buffer layer 19 absorbs the impact kinetic energy through deformation.

[0034] The pot lid is conveyed backward along the production line. When the pot lid moves to the bottom of the pressing assembly 5 via the conveyor belt 3, the lifting assembly 2 controls the conveyor belt 3 to fall. At the same time, the frame supporting the conveyor belt 3 pulls the pressure plate 71 down. The inclined surface at the bottom of the pressure plate 71 contacts the roller 18, and the rolling friction pushes the flat plate 7 to rotate around the mounting frame 6. At the same time, the torsion spring 8 is twisted, and the top of the flat plate 7 around the perimeter moves towards the center. The protective pad 16 presses against the edge of the pot lid, thus pressing the pot lid towards the center. The protective pad 16 pressing against the pot lid transmits the pressing force to the adjusting plate 12 and the buffer plate 9. The buffer plate 9 stretches the return spring 11 through the guide rod 10. The return spring 11 connected by different flat plates 7 balances the pressing force, so that the force around the pot lid is equal, thus pushing the pot lid towards the center and completing the positioning. Then the pressing assembly 5 clamps and fixes the pot lid. The grinding mechanism 4 grinds the pot lid located between the two flat plates 7, and then the pressing assembly 5 drives the pot lid to rotate. When the grinding mechanism 4 grinds the pot lid, the flat plate 7 does not affect the grinding process. Simultaneously, the rotating protective pad 16 wipes the edge of the pot lid during grinding, removing the coolant used by the grinding mechanism 4. After grinding, the grinding mechanism 4 and the pressing assembly 5 reset. The lifting assembly 2 pushes the conveyor belt 3 upwards, causing the pressure plate 71 to disengage from the flat plate 7. The torsion spring 8 returns to its original position, causing the flat plate 7 to rotate. The protective pad 16 gradually disengages from the pot lid, the return spring 11 rebounds, and the buffer plate 9 slides on top of the flat plate 7. At the same time, the lifting assembly 2 pushes the conveyor belt 3 upwards. After the conveyor belt 3 contacts the bottom of the pot lid, it transports the ground pot lid backwards.

[0035] After the front end of the lifting component 2 is lifted, the front end of the conveyor belt 3 contacts the pot lid on the production line and drives the pot lid to be conveyed backward. When the rear end of the lifting component 2 is lifted, the pot lid is conveyed backward.

[0036] For pot lids of different diameters, first loosen the fastening screw 14, slide the adjusting plate 12 to change the distance between the adjusting plate 12 and the buffer plate 9. Both the fastening screw 14 and the positioning pin 15 are located within the sliding groove 13, ensuring that the adjusting plate 12 and the buffer plate 9 are parallel. After adjustment, tighten the fastening screw 14 to fix the adjusting plate 12.

[0037] The protective sleeve 17 seals and encloses the torsion spring 8, isolating it from external coolant corrosion. After the pressure plate 71 separates from the flat plate 7, when the torsion spring 8 drives the flat plate 7 to reset, the rubber column 19 restricts the flat plate 7 from rotating backward, maintaining the tilt angle of the flat plate 7 and ensuring that the flat plate 7 rotates after the pressure plate 71 falls.

[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0039] The positioning device for grinding the edge of a glass pot lid provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand this utility model and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A positioning device for grinding the edge of a glass pot lid, characterized in that: The system includes a base (1) and a flat plate (7). The base (1) is installed in the production line. Lifting components (2) are installed at both the front and rear ends of the base (1). A conveyor belt (3) is installed on the top of both lifting components (2). A grinding mechanism (4) is installed on the left side of the middle of the base (1). A pressing component (5) is installed on the base (1). The pressing component (5) is divided into upper and lower parts and is used to hold the pot lid. Several mounting brackets (6) are connected to the middle of the base (1). The flat plate (7) is rotatably connected between two mounting brackets (6). The flat plate (7) is an "L" plate. A pressure plate (71) is connected to the middle of the support of the lifting component (2). The pressure plate (71) is pressed and engaged with the flat plate (7). The flat plate (7) surrounds the pressure plate (71). A torsion spring (8) is sleeved at the pivot of the pressure plate (71). One end of the torsion spring (8) is connected to the mounting bracket (6), and the other end of the torsion spring (8) is connected to the flat plate (7). A clamping component for holding the pot lid is provided on the top of the flat plate (7). An adjustment component for adapting to pot lids of different diameters is provided on the top of the flat plate (7).

2. The positioning device for grinding the edge of a glass pot lid according to claim 1, characterized in that: The buffer assembly includes a buffer plate (9), a guide rod (10) is slidably connected to the flat plate (7), the end of the guide rod (10) is connected to the buffer plate (9), and a return spring (11) is sleeved on the guide rod (10). One end of the return spring (11) is connected to the flat plate (7), and the other end of the return spring (11) is connected to the buffer plate (9).

3. The positioning device for grinding the edge of a glass pot lid according to claim 2, characterized in that: The adjustment assembly includes an adjustment plate (12), a fastening screw (14) is threaded to the top of the buffer plate (9), the adjustment plate (12) has a sliding groove (13), the fastening screw (14) is slidably connected to the sliding groove (13), and the adjustment plate (12) is connected to the buffer plate (9) through the fastening screw (14).

4. The positioning device for grinding the edge of a glass pot lid according to claim 3, characterized in that: The top of the flat plate (7) is connected to a positioning pin (15), and the adjusting plate (12) is slidably connected to the positioning pin (15) through the slide groove (13).

5. A positioning device for grinding the edge of a glass pot lid according to claim 4, characterized in that: The buffer plate (9) is connected to a protective pad (16).

6. A positioning device for grinding the edge of a glass pot lid according to claim 5, characterized in that: A protective sleeve (17) is provided between the mounting bracket (6) and the flat plate (7), and the flat plate (7) wraps around the torsion spring (8).

7. A positioning device for grinding the edge of a glass pot lid according to claim 6, characterized in that: A roller (18) is rotatably connected at the connection between the flat plate (7) and the pressure plate (71).

8. A positioning device for grinding the edge of a glass pot lid according to claim 7, characterized in that: The base (1) has several rubber pillars (19) connected in the middle, and the top of the rubber pillars (19) is matched with the flat plate (7).

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