Positioning mechanism with precise mold closing function

Abstract

The utility model discloses a positioning mechanism with precise mold closing, which comprises a base, and a mounting frame is fixedly connected to the middle of the upper end of the base. The infrared sensor is turned on and continuously scans the positioning hole, when the infrared sensor scans that the positioning cylinder is not matched with the positioning hole, the driving device close to the lower portion of the first sliding groove is turned on, the rotating disc drives the poke rod to slide in the first sliding groove, and in the process, the poke rod is driven to slide in the first sliding groove. A poke rod can extrude the inner wall of a first sliding groove, after the first sliding groove is extruded, an adjusting plate slides along a mounting frame, in a similar way, a driving device close to the lower portion of a second sliding groove is started, so that the adjusting plate moves front and back on the mounting frame, and the adjusting plate moves in the X-axis direction and the Y-axis direction above the mounting frame; the device is simple in structure and convenient to operate, and the two driving structures are the same, so that equipment maintenance is facilitated, and the convenience during equipment maintenance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold clamping positioning mechanisms, in particular to a positioning mechanism with precise mold clamping. Background Art

[0002] Mold closing refers to the process of fitting the upper and lower molds of a mold together under specific conditions to form a product of the desired shape and size. The mold is usually equipped with a positioning mechanism, which can ensure the accuracy and stability of the mold during the mold closing process, thereby improving product quality and production efficiency.

[0003] In the prior art, for example, Chinese patent CN220432619U discloses a precise positioning mechanism for mold clamping, which includes a base, a plurality of fixed frames provided at both ends of the base, a connecting plate provided in the middle of the plurality of fixed frames, a cylinder provided on the top of the connecting plate, an output shaft of the cylinder passing through the connecting plate and provided with a telescopic rod, a connector provided at the bottom of the telescopic rod, two sliding grooves provided at the bottom of the connector, a plurality of electric telescopic rods provided at both ends of the inner wall of the connector, and a movable plate provided in the middle of the plurality of electric telescopic rods.

[0004] Although the above patent adjusts the position between the upper mold and the lower mold by cooperating between infrared sensors, multiple electric telescopic rods and screw rods to ensure the accuracy of mold closing, the driving structure needs to be repaired during long-term use. This structure has many driving structures, which is time-consuming and labor-intensive to repair, making it inconvenient to use. Utility Model Content

[0005] The purpose of the present invention is to provide a precise positioning mechanism for mold clamping, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning mechanism for precise mold closing, comprising a base, a mounting frame fixedly connected to the middle part of the upper end of the base, sliding racks slidably connected to both sides of the upper end of the mounting frame, an adjustment plate is provided above the mounting frame, sliding bars are fixedly connected to both sides of the lower end of the adjustment plate, the outer surfaces of the two sliding bars are respectively slidably connected to the inner walls of the two sliding racks, two rotating disks are provided inside the mounting frame, the upper ends of the two rotating disks are fixedly connected to toggle rods, and the two rotating disks are A rotating rod is fixedly connected to the middle part of the lower end, and the lower ends of the two rotating rods are rotatably connected to the inner bottom of the mounting frame. A sliding groove 1 is provided on one side of the lower end of the adjusting plate, and a sliding groove 2 is provided on the other side of the lower end of the adjusting plate. The sliding groove 1 and the sliding groove 2 are perpendicular to each other. The outer surfaces of the two toggle rods are slidably connected to the inner walls of the sliding groove 1 and the sliding groove 2 respectively. A lifting platform is provided above the adjusting plate, and infrared sensors are fixedly installed on both sides of the two lifting platforms. Positioning holes are provided on both sides of the upper end of the adjusting plate.

[0007] As a further preferred embodiment of the present technical solution, the outer surfaces of the two rotating rods are fixedly connected to driven gears, the outer surfaces of the two driven gears are meshed with driving gears, two driving devices are fixedly installed on both sides of the inner wall of the mounting frame, and the output ends of the two driving devices are respectively fixedly connected to one side of the two driving gears.

[0008] As a further preferred embodiment of the present technical solution, a mounting plate is provided above the base, and support columns are fixedly connected to the four corners of the lower end of the mounting plate. The lower ends of the four support columns are respectively fixedly connected to the four corners of the upper end of the base, and the outer surfaces of the support columns are slidably connected to the inner wall of the lifting platform.

[0009] As a further preferred embodiment of the present technical solution, a cylinder is fixedly installed in the middle of the upper end of the mounting plate, the output end of the cylinder is fixedly connected to the middle of the upper end of the lifting platform, the middle of the lower end of the lifting platform is fixedly connected to the upper mold, and the middle of the upper end of the adjustment plate is fixedly connected to the lower mold.

[0010] As a further preferred embodiment of the present technical solution, positioning cylinders are fixedly connected to both sides of the lower end of the lifting platform, and outer surfaces of the two positioning cylinders are slidably connected to inner walls of the two positioning holes respectively.

[0011] As a further preferred embodiment of the present technical solution, installation grooves are provided on both sides of the upper end of the lifting platform, and the two infrared sensors are respectively located inside the two installation grooves. The outer surfaces of the two infrared sensors are rotatably connected with fixing nuts, and the inner walls of the two fixing nuts are threadedly connected with threaded barrels, and one end of the two threaded barrels is respectively fixedly connected to both sides of the upper end of the lifting platform.

[0012] The utility model provides a precise positioning mechanism for mold clamping, which has the following beneficial effects:

[0013] (1) The utility model is turned on by an infrared sensor, which continuously scans the positioning hole. When the infrared sensor scans that the positioning cylinder does not match the positioning hole, the driving device near the bottom of the sliding groove is turned on, and the rotating disk drives the toggle rod to slide inside the sliding groove. During this process, the toggle rod squeezes the inner wall of the sliding groove. After the sliding groove is squeezed, the adjustment plate slides along the installation frame. Similarly, the driving device near the bottom of the sliding groove is turned on, so that the adjustment plate moves back and forth on the installation frame. The adjustment plate moves in the X-axis and Y-axis directions above the installation frame to ensure that the positioning hole matches the positioning cylinder. This structure is simple and easy to operate, and the two driving structures are the same, which facilitates equipment maintenance, thereby improving the convenience of equipment maintenance.

[0014] (2) The utility model rotates the fixing nut to move along the thread groove of the threaded barrel. When the fixing nut is completely removed from the threaded barrel, the restriction of the infrared sensor on the lifting platform is released, and the infrared sensor can be removed from the lifting platform and replaced, thereby facilitating the installation and disassembly of the infrared sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the utility model from a first perspective;

[0016] Figure 2 This is a schematic diagram of the structure of the utility model from a second perspective;

[0017] Figure 3 This is a schematic diagram of the cross-sectional structure of the installation frame and the adjustment plate in the present utility model;

[0018] Figure 4 This is a schematic diagram of the upward structure of the lifting platform in the utility model;

[0019] Figure 5 This is a schematic diagram of the cross-sectional structure of the lifting platform in the present utility model;

[0020] In the figure: 1. Base; 2. Mounting frame; 3. Support column; 4. Mounting plate; 5. Cylinder; 6. Lifting platform; 7. Positioning cylinder; 8. Adjustment plate; 9. Positioning hole; 10. Lower mold; 11. Upper mold; 12. Rotating plate; 13. Toggle rod; 14. Sliding frame; 15. Rotating rod; 16. Driving device; 17. Driven gear; 18. Driving gear; 19. Sliding groove 1; 20. Sliding groove 2; 21. Sliding bar; 22. Infrared sensor; 23. Fixing nut; 24. Threaded cylinder; 25. Mounting groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figure 1 - Figure 5As shown in this embodiment, a positioning mechanism for precise mold closing includes a base 1, a mounting frame 2 is fixedly connected to the middle of the upper end of the base 1, and sliding racks 14 are slidably connected to both sides of the upper end of the mounting frame 2. An adjustment plate 8 is provided above the mounting frame 2, and both sides of the lower end of the adjustment plate 8 are fixedly connected to sliding bars 21. The outer surfaces of the two sliding bars 21 are respectively slidably connected to the inner walls of the two sliding racks 14. Two rotating disks 12 are provided inside the mounting frame 2, and the upper ends of the two rotating disks 12 are fixedly connected to the dial The movable rod 13 is fixedly connected to the middle of the lower end of the two rotating disks 12 with a rotating rod 15. The lower ends of the two rotating rods 15 are rotatably connected to the inner bottom of the mounting frame 2. A sliding groove 19 is provided on one side of the lower end of the adjusting plate 8, and a sliding groove 20 is provided on the other side of the lower end of the adjusting plate 8. The sliding groove 19 and the sliding groove 20 are perpendicular to each other. The outer surfaces of the two toggle rods 13 are respectively slidably connected to the inner walls of the sliding groove 19 and the sliding groove 20. A lifting platform 6 is provided above the adjusting plate 8. The two lifting platforms 6 are fixedly installed on both sides, and positioning holes 9 are opened on both sides of the upper end of the adjustment plate 8. When the infrared sensor 22 is turned on, the infrared sensor 22 continuously scans the positioning hole 9. When the infrared sensor 22 scans that the positioning cylinder 7 does not match the positioning hole 9, the driving device 16 near the bottom of the sliding groove 19 is turned on, and the rotating disk 12 drives the toggle rod 13 to slide inside the sliding groove 19. During this process, the toggle rod 13 will squeeze the inner wall of the sliding groove 19. After the sliding groove 19 is squeezed, the adjustment plate 8 slides along the mounting frame 2. Similarly, the driving device 16 near the bottom of the sliding groove 20 is turned on, so that the adjustment plate 8 moves back and forth on the mounting frame 2. The adjustment plate 8 moves in the X-axis and Y-axis directions above the mounting frame 2 to ensure that the positioning hole 9 matches the positioning cylinder 7. This structure is simple and easy to operate, and the two driving structures are the same, which facilitates equipment maintenance, thereby improving the convenience of equipment maintenance. The model of the infrared sensor 22 is Heimann Sensor HTPA 120x84D.

[0023] like Figure 3 As shown, the outer surfaces of the two rotating rods 15 are fixedly connected to the driven gears 17, and the outer surfaces of the two driven gears 17 are meshed with driving gears 18. Two driving devices 16 are fixedly installed on both sides of the inner wall of the mounting frame 2, and the output ends of the two driving devices 16 are respectively fixedly connected to one side of the two driving gears 18. By turning on the two driving devices 16, the two rotating disks 12 are rotated in the mounting frame 2, thereby ensuring that the positioning hole 9 matches the positioning cylinder 7.

[0024] like Figure 1 and Figure 2As shown, a mounting plate 4 is provided above the base 1, and support columns 3 are fixedly connected at the four corners of the lower end of the mounting plate 4. The lower ends of the four support columns 3 are respectively fixedly connected to the four corners of the upper end of the base 1, and the outer surfaces of the support columns 3 are slidably connected to the inner wall of the lifting platform 6. Through the structural design of the support columns 3, the lifting platform 6 can be guided to ensure the stability of the lifting platform 6 when moving.

[0025] like Figure 1 and Figure 2 As shown, a cylinder 5 is fixedly installed in the middle of the upper end of the mounting plate 4, the output end of the cylinder 5 is fixedly connected to the middle of the upper end of the lifting platform 6, the middle of the lower end of the lifting platform 6 is fixedly connected to the upper mold 11, and the middle of the upper end of the adjusting plate 8 is fixedly connected to the lower mold 10. Through the structural design of the lower mold 10 and the upper mold 11, the raw materials are injection molded into the produced products.

[0026] like Figure 1 、 Figure 2 、 Figure 5 As shown, positioning cylinders 7 are fixedly connected to both sides of the lower end of the lifting platform 6. The outer surfaces of the two positioning cylinders 7 are slidingly connected to the inner walls of the two positioning holes 9 respectively. Through the structural design of the positioning cylinders 7, the upper mold 11 and the lower mold 10 are positioned to ensure the accuracy of mold closing.

[0027] like Figure 1 、 Figure 2 As shown, mounting grooves 25 are provided on both sides of the upper end of the lifting platform 6, and the two infrared sensors 22 are respectively located inside the two mounting grooves 25. The outer surfaces of the two infrared sensors 22 are rotatably connected with fixing nuts 23, and the inner walls of the two fixing nuts 23 are threadedly connected with threaded barrels 24. One ends of the two threaded barrels 24 are respectively fixedly connected to both sides of the upper end of the lifting platform 6. By rotating the fixing nuts 23, the fixing nuts 23 are moved along the threaded grooves of the threaded barrels 24. When they are completely removed from the threaded barrels 24, the restriction of the infrared sensor 22 on the lifting platform 6 is released, and the infrared sensor 22 is removed from the lifting platform 6 and replaced, thereby facilitating the installation and disassembly of the infrared sensor 22.

[0028] The utility model provides a precise positioning mechanism for mold clamping, and the specific working principle is as follows:

[0029] When the product is produced, the cylinder 5 is first turned on to make the lifting platform 6 slide along the support column 3. When the upper mold 11 and the lower mold 10 are closed, the infrared sensor 22 continuously scans the positioning hole 9. When the infrared sensor 22 scans that the positioning cylinder 7 does not match the positioning hole 9, the driving device 16 near the bottom of the sliding groove 19 is turned on, and the rotating disk 12 drives the toggle rod 13 to slide inside the sliding groove 19. During this process, the toggle rod 13 will squeeze the inner wall of the sliding groove 19. After the sliding groove 19 is squeezed, the adjustment plate 8 slides along the mounting frame 2. Similarly, the driving device 16 near the bottom of the sliding groove 20 is turned on, so that the adjustment plate 8 moves back and forth on the mounting frame 2. The adjustment plate 8 moves in the X-axis and Y-axis directions above the mounting frame 2 to ensure that the positioning hole 9 matches the positioning cylinder 7. After the mold is closed, the raw material is injected into the upper mold 11, and the raw material solidifies between the lower mold 10 and the upper mold 11, thereby producing the product.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precise mold positioning mechanism, comprising a base (1), characterized in that: The middle of the upper end of the base (1) is fixedly connected to a mounting frame (2), and both sides of the upper end of the mounting frame (2) are slidably connected to sliding racks (14). An adjustment plate (8) is provided above the mounting frame (2), and both sides of the lower end of the adjustment plate (8) are fixedly connected to sliding bars (21). The outer surfaces of the two sliding bars (21) are slidably connected to the inner walls of the two sliding racks (14) respectively. Two rotating disks (12) are provided inside the mounting frame (2), and the upper ends of the two rotating disks (12) are fixedly connected to toggle rods (13). The middle of the lower ends of the two rotating disks (12) are fixedly connected to rotating rods (15). The two rotating rods ( The lower ends of the adjusting plates (8) are rotatably connected to the inner bottom of the mounting frame (2), a sliding groove (19) is provided on one side of the lower end of the adjusting plate (8), and a sliding groove (20) is provided on the other side of the lower end of the adjusting plate (8), wherein the sliding groove (19) and the sliding groove (20) are perpendicular to each other, and the outer surfaces of the two toggle rods (13) are slidably connected to the inner walls of the sliding groove (19) and the sliding groove (20), respectively. A lifting platform (6) is provided above the adjusting plate (8), and infrared sensors (22) are fixedly installed on both sides of the two lifting platforms (6), and positioning holes (9) are provided on both sides of the upper end of the adjusting plate (8).

2. A precise mold clamping positioning mechanism according to claim 1, characterized in that: The outer surfaces of the two rotating rods (15) are fixedly connected to driven gears (17), and the outer surfaces of the two driven gears (17) are meshed with driving gears (18). Two driving devices (16) are fixedly installed on both sides of the inner wall of the installation frame (2), and the output ends of the two driving devices (16) are fixedly connected to one side of the two driving gears (18) respectively.

3. The precise mold clamping positioning mechanism according to claim 1, characterized in that: A mounting plate (4) is provided above the base (1), and support columns (3) are fixedly connected at the four corners of the lower end of the mounting plate (4). The lower ends of the four support columns (3) are respectively fixedly connected to the four corners of the upper end of the base (1), and the outer surfaces of the support columns (3) are slidably connected to the inner wall of the lifting platform (6).

4. A precise mold clamping positioning mechanism according to claim 3, characterized in that: A cylinder (5) is fixedly mounted on the middle portion of the upper end of the mounting plate (4); an output end of the cylinder (5) is fixedly connected to the middle portion of the upper end of the lifting platform (6); an upper mold (11) is fixedly connected to the middle portion of the lower end of the lifting platform (6); and a lower mold (10) is fixedly connected to the middle portion of the upper end of the adjustment plate (8).

5. The precise mold clamping positioning mechanism according to claim 1, characterized in that: Positioning cylinders (7) are fixedly connected to both sides of the lower end of the lifting platform (6), and the outer surfaces of the two positioning cylinders (7) are slidably connected to the inner walls of the two positioning holes (9) respectively.

6. The precise mold clamping positioning mechanism according to claim 1, characterized in that: Both sides of the upper end of the lifting platform (6) are penetrated by mounting grooves (25), and the two infrared sensors (22) are respectively located inside the two mounting grooves (25). The outer surfaces of the two infrared sensors (22) are rotatably connected with fixing nuts (23), and the inner walls of the two fixing nuts (23) are threadedly connected with threaded barrels (24), and one end of the two threaded barrels (24) is respectively fixedly connected to both sides of the upper end of the lifting platform (6).

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