A mold polishing apparatus

Abstract

The present application belongs to the technical field of polishing equipment, and relates to a mold polishing and grinding equipment. The present application comprises a workbench, a first mounting frame is arranged above the workbench, a mounting rod is horizontally slidably arranged on the first mounting frame, a second mounting frame is rotatably arranged on the mounting rod, polishing assemblies are arranged at the upper and lower ends of the second mounting frame, each polishing assembly comprises a rotating column rotatably arranged on the second mounting frame and a polishing disc arranged at the end of the rotating column, a driving assembly is arranged on the mounting rod to drive the second mounting frame to rotate, so that the positions of the two polishing assemblies are exchanged. By exchanging the positions of the two polishing discs, the two polishing discs are alternately polished, the wear of the polishing discs is reduced, the stability of the polishing quality is ensured, and the product quality is improved. The two polishing discs are alternately washed, the polishing discs are cleaned and cooled, and the service life of the polishing discs is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of polishing equipment technology, and relates to a mold grinding and polishing equipment. Background Technology

[0002] Molds are core process equipment in modern industrial production. Their surface precision and smoothness directly determine the dimensional accuracy, appearance quality, and performance of the molded products, making them a crucial link in ensuring the consistency of products in high-end manufacturing. Therefore, grinding and polishing key parts such as mold cavities and surfaces have become important procedures in mold manufacturing and subsequent maintenance, thereby ensuring the production efficiency and service life of the mold.

[0003] Currently, most mold grinding and polishing equipment on the market uses a single grinding head or a fixed multi-grinding head structure. During long-term continuous operation, the polishing disc gradually wears down due to continuous friction with the mold surface, causing changes in its surface morphology and cutting ability. This wear is usually uneven, resulting in a decrease in material removal rate and difficulty in controlling roughness on the mold surface in the later stages of polishing, seriously affecting the consistency and stability of polishing quality. Furthermore, the debris generated during polishing easily adheres to the surface of the polishing disc. If not cleaned in time, it will not only scratch the mold surface but also reduce the polishing performance of the polishing disc. Existing equipment usually requires interrupting the production process for manual cleaning or replacement, which significantly reduces production efficiency.

[0004] To address the above problems, this invention proposes a mold grinding and polishing device. Summary of the Invention

[0005] To address the problems existing in the background technology, the present invention proposes a mold grinding and polishing device.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A mold grinding and polishing device includes a worktable, a first mounting frame above the worktable, a mounting rod horizontally slidably mounted on the first mounting frame, a second mounting frame rotatably mounted on the mounting rod, and polishing components at both the upper and lower ends of the second mounting frame. Each polishing component includes a rotating column rotatably mounted on the second mounting frame and a polishing disc at the end of the rotating column. A driving component on the mounting rod drives the second mounting frame to rotate, allowing the two polishing components to interchange positions. A rinsing component on the first mounting frame rinses the polishing disc located at the upper end of the second mounting frame.

[0008] The rotating column is provided with a second liquid hole. The second liquid hole on the rotating column at the lower end of the second mounting bracket sprays polishing liquid onto the mold, and the second liquid hole on the rotating column at the upper end of the second mounting bracket discharges the rinsed liquid.

[0009] Furthermore, a fifth gear is fixedly connected to the rotating column, and a rack is provided on the first mounting bracket. The fifth gear located at the upper end of the second mounting bracket meshes with the rack.

[0010] Furthermore, the rinsing assembly includes a nozzle; a water inlet pipe is slidably disposed on the first mounting bracket, the nozzle is installed at the lower end of the water inlet pipe, a sliding ring is slidably disposed inside the rotating column, and the sliding ring located at the upper end of the second mounting bracket is raised and sleeved on the nozzle; the rotating column, the sliding ring, and the nozzle form a rinsing chamber.

[0011] Furthermore, the first mounting bracket has two first through holes, and a slide rod is slidably disposed in the first through hole, with a rack fixedly connected between the two slide rods; the end of the second mounting bracket is provided with a lever that cooperates with the slide rod.

[0012] Furthermore, a water-blocking ring is fixedly connected to the end of the rotating column away from the polishing disc, and two first liquid holes are opened on the second mounting bracket, with each of the two first liquid holes corresponding to one of the two rotating columns; the water-blocking ring connects the corresponding first liquid hole and second liquid hole.

[0013] Furthermore, the drive assembly includes a third motor, a connecting shaft is rotatably mounted inside the mounting rod, a fourth gear is fixedly connected to the connecting shaft, and the output shaft of the third motor is fixedly connected to a third gear that meshes with the fourth gear.

[0014] Furthermore, two first slide grooves are provided on the worktable, and a slider is slidably arranged in each first slide groove. A fixed seat is installed on the slider, and a first electric push rod is installed on the fixed seat. A clamp is installed on the telescopic end of the first electric push rod.

[0015] Furthermore, a fourth electric push rod is installed on the slider, and the fixed seat is installed on the telescopic end of the fourth electric push rod. The first electric push rod is rotatably connected to the fixed seat. At least one of the fixed seats is equipped with a second motor, the output shaft of the second motor is fixedly connected to a first gear, and the first electric push rod is fixedly connected to a second gear that meshes with the first gear.

[0016] Furthermore, the workbench has a second slide groove that connects the two first slide grooves. A slide plate is slidably disposed in the second slide groove and is fixedly connected between the two slide plates. A lead screw that drives the slide plate to move is installed in the second slide groove, and a first motor that drives the lead screw to rotate is installed on the workbench.

[0017] Compared with the prior art, the present invention has the following advantages: by periodically flipping the second mounting bracket, the two polishing discs are interchanged, thereby allowing the two polishing discs to perform polishing operations alternately, reducing the performance degradation caused by continuous operation of a single polishing disc, and ensuring the stability of polishing quality.

[0018] When the polishing disc is positioned above, the sliding ring and the nozzle form a rinsing chamber, enabling automatic rinsing and cooling. This not only promptly removes impurities from the surface of the polishing disc and restores its cutting ability, but also effectively cools it down, ensuring that the polishing disc is in optimal working condition each time it is put into operation, thereby extending the service life of the polishing disc. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the first mounting bracket in this invention;

[0021] Figure 3 In this invention Figure 2 Enlarged view of part A;

[0022] Figure 4 This is a schematic diagram of the mounting rod in this invention;

[0023] Figure 5 This is a cross-sectional view of the mounting rod in this invention;

[0024] Figure 6 In this invention Figure 5 Enlarged view of part B;

[0025] Figure 7 This is a schematic diagram of the polishing component in this invention.

[0026] In the diagram: 1. Workbench; 2. First slide rail; 3. Second slide rail; 4. Slider; 5. Slide plate; 6. First motor; 7. Lead screw; 8. Fixed base; 9. Second motor; 10. First gear; 11. First electric push rod; 12. Second gear; 13. Clamping plate; 14. Second electric push rod; 15. First mounting bracket; 16. First through hole; 17. Slide rod; 18. Rack; 19. Second through hole; 20. Connecting block; 21. Water inlet pipe; 22. Third slide rail; 23. Mounting bracket. 24. Mounting rod; 25. Third motor; 26. Third gear; 27. Connecting shaft; 28. Fourth gear; 29. ​​Second mounting bracket; 30. Fourth motor; 31. Rotating shaft; 32. First liquid hole; 33. Rotating column; 34. Water-retaining ring; 35. Second liquid hole; 36. Fourth slide groove; 37. Third electric push rod; 38. Sliding ring; 39. Polishing disc; 40. Nozzle; 41. Fifth gear; 42. Pulley; 43. Drain pipe; 44. Liquid inlet pipe; 55. Fourth electric push rod. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example 1: As Figures 1-7 As shown, the technical solution adopted by the present invention is as follows: A mold grinding and polishing device includes a worktable 1. A first mounting frame 15 is mounted above the worktable 1 via four second electric push rods 14. The second electric push rods 14 can drive the first mounting frame 15 to rise and fall as a whole.

[0029] like Figure 2 As shown, the first mounting bracket 15 includes a horizontal plate and a vertical plate. The horizontal plate and the vertical plate are fixedly connected, and the horizontal plate is fixedly mounted on the telescopic end of the second electric push rod 14. The worktable 1 has a sliding hole that slides with the vertical plate.

[0030] A third sliding groove 22 is horizontally provided on the vertical plate of the first mounting bracket 15. One end of the mounting rod 23 is horizontally slidably mounted on the first mounting bracket 15 through the third sliding groove 22.

[0031] A C-shaped second mounting bracket 28 is rotatably mounted on the mounting rod 23 via a connecting shaft 26. Specifically, the connecting shaft 26 rotatably passes through the mounting rod 23, and one end of it is fixedly connected to the middle of the second mounting bracket 28.

[0032] To enable the rotation of the second mounting bracket 28, a drive assembly is provided on the mounting rod 23. The drive assembly includes a third motor 24 fixed to the mounting rod 23, and a third gear 25 is fixedly connected to the output shaft of the third motor 24. A fourth gear 27 is fixedly mounted on the connecting shaft 26, and the fourth gear 27 meshes with the third gear 25. When the third motor 24 is started, the connecting shaft 26 and the second mounting bracket 28 rotate under the action of the fourth gear 27 and the third gear 25.

[0033] The second mounting bracket 28 has identical polishing components at both its upper and lower ends. Each polishing component includes a rotating column 32 and a polishing disc 38 fixedly mounted on the end of the rotating column 32. The polishing disc 38 is located at the ends of the two rotating columns 32 that are far apart from each other. The rotating columns 32 are rotatably mounted on the second mounting bracket 28 via rotating shafts 30. Each rotating shaft 30 is driven by a fourth motor 29 fixed to the second mounting bracket 28.

[0034] Each rotating column 32 is fixedly fitted with a fifth gear 40. The horizontal plate of the first mounting bracket 15 has two first through holes 16, the length direction of the first through holes 16 being perpendicular to the length direction of the third slide groove 22.

[0035] A slide rod 17 is slidably disposed within the first through hole 16, and a rack 18 is fixedly connected between two slide rods 17. The rack 18 meshes with the fifth gear 40 located above. This causes the fourth motor 29 located above to rotate, driving the corresponding fifth gear 40 and rotating column 32 to rotate. Because the fifth gear 40 meshes with the rack 18, the second mounting bracket 28 and mounting rod 23 move along the direction of the third slide groove 22. Teeth are provided on both sides of the rack 18.

[0036] Both ends of the second mounting bracket 28 are fixed with levers 41. When the second mounting bracket 28 is rotated 180 degrees to interchange the positions of the two polishing discs 38, the levers 41 will contact the slide bar 17 and move the rack 18 to slide along the first through hole 16. This allows the fifth gear 40, which is now positioned above the rack after the interchange, to mesh with the rack 18.

[0037] A rinsing assembly is provided on the first mounting bracket 15. The rinsing assembly includes a nozzle 39. A connecting block 20 is slidably connected to the horizontal plate of the first mounting bracket 15. Specifically, a second through hole 19 is provided on the horizontal plate, and the connecting block 20 is slidably disposed within the second through hole 19. The second through hole 19 is arranged parallel to the third sliding groove 22.

[0038] A water inlet pipe 21 is fixedly inserted through the connecting block 20, and the lower end of the water inlet pipe 21 is connected to the nozzle 39.

[0039] To collect wastewater during rinsing, a fourth groove 35 is provided at the end of the rotating column 32 near the polishing disc 38, and a sliding ring 37 is slidably disposed within the fourth groove 35. A third electric push rod 36 is fixedly installed within the fourth groove 35, and the output end of the third electric push rod 36 is fixedly connected to the sliding ring 37. During rinsing, the third electric push rod 36 pushes the sliding ring 37 to rise and fit over the outside of the nozzle 39, thereby forming a rinsing chamber together with the rotating column 32, the sliding ring 37, and the nozzle 39.

[0040] Multiple second liquid holes 34 are provided on the rotating column 32, and the second liquid holes 34 penetrate through the upper and lower ends of the rotating column 32. A water-retaining ring 33 is fixedly connected to the end of the rotating column 32 away from the polishing disc 38. Two first liquid holes 31 are symmetrically provided inside the second mounting bracket 28, and the two first liquid holes 31 correspond one-to-one with the two rotating columns 32. The second liquid holes 34 are connected to the first liquid holes 31 through the water-retaining ring 33.

[0041] The first liquid hole 31 extends into and passes through the connecting shaft 26. A drain pipe 42 and a liquid inlet pipe 43 are fixedly connected to one side of the mounting rod 23, and are respectively connected to the two first liquid holes 31. The liquid inlet pipe 43 communicates with the lower first liquid hole 31 for introducing polishing fluid. The drain pipe 42 communicates with the upper first liquid hole 31 for discharging rinsing wastewater.

[0042] Working principle: Initially, in the upper polishing assembly, the sliding ring 37 extends above the polishing disc 38 and is fitted onto the nozzle 39. The slide rod 17 is located at the end of the first through hole 16, and the upper lever 41 abuts against the slide rod 17. The mounting rod 23 is located at one end of the third slide groove 22.

[0043] Connect the water inlet pipe 21 to the water supply system, connect the drain pipe 42 to the wastewater collection system, and connect the liquid inlet pipe 43 to the polishing liquid supply device.

[0044] The mold to be polished is installed on the worktable 1. The first mounting bracket 15 is moved down by the second electric push rod 14, so that the polishing disc 38 below comes into contact with the mold.

[0045] In the polishing assembly below, the fourth motor 29 is activated to drive the polishing disc 38 to rotate, thereby polishing the mold. Polishing liquid is injected into the corresponding first liquid hole 31 through the liquid inlet pipe 43. The polishing liquid flows through the first liquid hole 31 and the water-blocking ring 33, then enters the second liquid hole 34 and is sprayed onto the mold.

[0046] In the polishing assembly above, the fourth motor 29 is activated, driving the rotating column 32 to rotate, and the fifth gear 40 to rotate. Since the fifth gear 40 meshes with the rack 18, it rolls along the rack 18, causing the mounting rod 23 and the second mounting bracket 28 to move along the third sliding groove 22 for comprehensive polishing of the mold. Simultaneously, because the sliding ring 37 is fitted onto the nozzle 39, the connecting block 20 slides along the second through hole 19. The water supply system injects rinsing water into the inlet pipe 21, which is then sprayed onto the polishing disc 38 through the nozzle 39, rinsing and cooling the polishing disc 38 simultaneously. The rinsing wastewater flows through the second liquid hole 34 into the corresponding first liquid hole 31, and is then discharged through the drain pipe 42.

[0047] As polishing progresses, when the mounting rod 23 moves the second mounting bracket 28 to the other end of the third slide 22, the two fourth motors 29 are stopped. At the same time, the supply of polishing liquid to the liquid inlet pipe 43 and the supply of rinsing water to the water inlet pipe 21 are stopped.

[0048] Activate the third electric push rod 36 above to move the sliding ring 37 down back into the fourth slide groove 35, thereby disengaging it from the nozzle 39.

[0049] Start the third motor 24, which, through the action of the third gear 25 and the fourth gear 27, causes the connecting shaft 26 and the second mounting bracket 28 to rotate until the second mounting bracket 28 rotates 180 degrees, thus exchanging the positions of the two polishing components.

[0050] During the repositioning process, the upper fifth gear 40 disengages from the rack 18, and the lower lever 41 gradually moves upward and pushes the rack 18 to slide along the first through hole 16. This causes the upper fifth gear 40 to mesh with the rack 18.

[0051] Next, the fourth motor 29 below is started to drive the polishing disc 38 below to rotate, so as to polish the mold. The polishing liquid enters the second liquid hole 34 through the liquid inlet pipe 43, the first liquid hole 31, and the water-blocking ring 33, and is sprayed onto the mold through the second liquid hole 34.

[0052] Simultaneously, the third electric push rod 36 located above is activated, pushing the corresponding sliding ring 37 upward and fitting it onto the nozzle 39. Water is injected into the water inlet pipe 21 through the external water supply system, causing the nozzle 39 to spray water to rinse the polishing disc 38 located above, washing away adhering polishing residue and impurities, while simultaneously cooling the polishing disc 38. The rinsed wastewater passes through the second liquid hole 34, the water-blocking ring 33, and the first liquid hole 31 on the rotating column 32, and is finally discharged into the external wastewater collection system through the drain pipe 42. The fourth motor 29 above is then rotated, causing the mounting rod 23 and the second mounting bracket 28 to move along the third slide groove 22 for comprehensive polishing of the mold.

[0053] Therefore, by flipping the second mounting bracket 28, the two polishing discs 38 are interchanged, and the two polishing discs 38 perform polishing operations alternately, reducing the performance degradation caused by continuous operation of a single polishing disc 38 and ensuring the stability of polishing quality.

[0054] When the polishing disc 38 is in the upper position, the sliding ring 37 and the nozzle 39 form a rinsing chamber, realizing automatic rinsing and cooling. This not only removes impurities from the surface of the polishing disc 38 in a timely manner and restores its cutting ability, but also effectively cools it down, thus ensuring that the polishing disc 38 is in optimal working condition every time it is put into operation, thereby extending the service life of the polishing disc 38.

[0055] Example 2: This example is an improvement based on Example 1.

[0056] Two first slide grooves 2 are formed on the top surface of the worktable 1, and a slider 4 is slidably disposed in each first slide groove 2. A fourth electric push rod 44 is vertically mounted on the slider 4. A fixed base 8 is fixedly connected to the telescopic end of the fourth electric push rod 44. A first electric push rod 11 is rotatably mounted on the fixed base 8 via bearings, and a clamping plate 13 is mounted on the telescopic end of the first electric push rod 11. The two clamping plates 13 are brought closer together by the two first electric push rods 11, thereby clamping and fixing the mold. The two fourth electric push rods 44 rise and fall synchronously, so that the fixed base 8, clamping plates 13 and mold contact or move away from the worktable 1. Moving the mold away from the worktable 1 provides operating space for the mold to be flipped and changed.

[0057] At least one of the fixed bases 8 is fixed with a second motor 9, and the output shaft of the second motor 9 is fixedly connected to a first gear 10. The outer surface of the corresponding first electric push rod 11 is fixedly connected to a second gear 12, and the first gear 10 and the second gear 12 mesh. Starting the second motor 9 can drive the two first electric push rods 11, the clamping plate 13 and the mold to rotate simultaneously, thereby realizing the flipping of the mold and the switching of different processing surfaces.

[0058] A second slide groove 3 is provided inside the workbench 1, connecting two first slide grooves 2. A slide plate 5 is slidably mounted inside the second slide groove 3, with its two ends fixedly connected to two sliders 4 respectively. A lead screw 7 is rotatably connected inside the second slide groove 3, and the lead screw 7 is threadedly engaged with the slide plate 5. A first motor 6 is fixedly embedded in one side of the second slide groove 3, and the output shaft of the first motor 6 is fixedly connected to the lead screw 7. Activating the first motor 6 drives the slide plate 5 to move along the first slide groove 2, thereby adjusting the position of the mold.

[0059] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A die polishing apparatus comprising a worktable (1), characterized in that: The workbench (1) is provided with a first mounting frame (15) above it, a mounting rod (23) is horizontally slidably arranged on the first mounting frame (15), a second mounting frame (28) is rotatably arranged on the mounting rod (23), polishing assemblies are arranged at the upper and lower ends of the second mounting frame (28), the polishing assembly comprises a rotating column (32) rotatably arranged on the second mounting frame (28) and a polishing disc (38) arranged at the end of the rotating column (32); a driving assembly is arranged on the mounting rod (23) to drive the second mounting frame (28) to rotate, so that the positions of the two polishing assemblies are exchanged; a flushing assembly is arranged on the first mounting frame (15), and the flushing assembly flushes the polishing disc (38) located at the upper end of the second mounting frame (28); A second liquid hole (34) is formed in the rotating column (32), the second liquid hole (34) at the lower end of the rotating column (32) sprays polishing liquid onto the mold, and the second liquid hole (34) at the upper end of the rotating column (32) of the second mounting frame (28) discharges the flushed liquid; The flushing assembly comprises a spray head (39); a water inlet pipe (21) is slidably arranged on the first mounting frame (15), the spray head (39) is arranged at the lower end of the water inlet pipe (21), a sliding ring (37) is slidably arranged in the rotating column (32), and the sliding ring (37) located at the upper end of the second mounting frame (28) is raised and sleeved on the spray head (39); the rotating column (32), the sliding ring (37) and the spray head (39) form a flushing chamber.

2. The mold polishing apparatus according to claim 1, wherein: A fifth gear (40) is fixedly connected to the rotating column (32), and a rack (18) is arranged on the first mounting frame (15); the fifth gear (40) located at the upper end of the second mounting frame (28) is engaged with the rack (18).

3. The mold polishing apparatus according to claim 2, wherein: Two first through holes (16) are formed in the first mounting frame (15), a sliding rod (17) is slidably arranged in the first through hole (16), and the rack (18) is fixedly connected between the two sliding rods (17); a push block (41) cooperating with the sliding rod (17) is arranged at the end of the second mounting frame (28).

4. The mold polishing apparatus according to claim 1, wherein: A water blocking ring (33) is fixedly connected to the end of the rotating column (32) away from the polishing disc (38), two first liquid holes (31) are formed in the second mounting frame (28), and the two first liquid holes (31) correspond to the two rotating columns (32) one by one; the water blocking ring (33) communicates the corresponding first liquid hole (31) and the second liquid hole (34).

5. The mold polishing apparatus of claim 1, wherein: The driving assembly comprises a third motor (24), a connecting shaft (26) is rotatably arranged in the mounting rod (23), a fourth gear (27) is fixedly connected to the connecting shaft (26), and the output shaft of the third motor (24) is fixedly connected with a third gear (25) engaged with the fourth gear (27).

6. The mold polishing apparatus of claim 1, wherein: The workbench (1) is provided with two first sliding grooves (2), each of which is slidably provided with a sliding block (4), the sliding block (4) is provided with a fixing seat (8), the fixing seat (8) is provided with a first electric push rod (11), and the first electric push rod (11) is provided with a clamping plate (13) at the telescopic end.

7. The mold polishing apparatus according to claim 6, wherein: The sliding block (4) is provided with a fourth electric push rod (44), the fixing seat (8) is provided at the telescopic end of the fourth electric push rod (44), and the first electric push rod (11) is rotatably connected with the fixing seat (8); at least one fixing seat (8) is provided with a second motor (9), the output shaft of the second motor (9) is fixedly connected with a first gear (10), and the first electric push rod (11) is fixedly connected with a second gear (12) engaged with the first gear (10).

8. The mold polishing apparatus according to claim 7, wherein: The workbench (1) is provided with a second sliding groove (3) communicating with the two first sliding grooves (2), the second sliding groove (3) is slidably provided with a sliding plate (5), and the sliding plate (5) is fixedly connected between the two sliding blocks (4); the second sliding groove (3) is provided with a lead screw (7) for driving the sliding plate (5) to move, and the workbench (1) is provided with a first motor (6) for driving the lead screw (7) to rotate.

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