A mold opening and closing device and a curing press

Abstract

The utility model discloses a kind of mold opening and closing device and vulcanizing machine, it belongs to vulcanizing machine technical field, including base, two walls are respectively equipped in the both sides of base, the same side two walls top is equipped with upper connecting plate, upper connecting plate lower fixedly connected with lead screw, lead screw lower end is fixed on base;It further includes upper crossbeam, upper crossbeam is equipped with rotating lead screw nut, lead screw nut is screwed with lead screw, lead screw nut is fixed on gear mounting seat, gear mounting seat is rotatably connected on upper crossbeam by bearing;Gear mounting seat center is equipped with through-hole, gear mounting seat is sleeved on lead screw by through-hole, driven gear is installed on gear mounting seat, driven gear can rotate with lead screw as center;Speed reducer is installed on upper crossbeam, driving gear is installed on the output shaft of speed reducer, driving gear is engaged with driven gear.The above structure can realize mold opening and closing action using lead screw nut pair, and it is easy to maintain, can adapt to complex working conditions.

Description

Technical Field

[0001] This utility model relates to the field of vulcanizing machine technology, specifically to a mold opening and closing device and a vulcanizing machine. Background Technology

[0002] Currently, the mold opening and closing devices of all-steel and semi-steel hydraulic vulcanizing machines are mostly driven by hydraulic cylinders, which require a hydraulic station and hydraulic pipelines, occupying a large space and having high maintenance costs. Moreover, hydraulic cylinders are prone to oil leakage during use, polluting the environment and affecting the stability of equipment use. In addition, the control accuracy of the cylinder is affected by the temperature and pressure fluctuations of the hydraulic oil, resulting in low motion accuracy.

[0003] Although structures using a geared motor to drive the lead screw, which in turn uses the lead screw nut to raise and lower the opening and closing seat, have emerged to address the issues with hydraulic cylinders, the geared motor in these structures is often located at the very top of the lead screw, making maintenance very inconvenient. Furthermore, due to the complex working environment of vulcanizing machines, traditional lead screws are connected at both ends by bearings. These bearings have a shorter lifespan in complex environments and require frequent maintenance. If neglected for extended periods, severe bearing wear can lead to increased radial runout of the lead screw, ultimately damaging the entire screw.

[0004] In view of the problems existing in the prior art, this utility model designs and manufactures a mold opening and closing device and a vulcanizing machine to overcome the above defects. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a mold opening and closing device and a vulcanizing machine that can realize the mold opening and closing action using a screw and nut pair, and is easy to maintain and can adapt to complex working conditions.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: an opening and closing mold device, including a base, two wall plates are respectively provided on both sides of the base, an upper connecting plate is provided above the two wall plates on the same side, a lead screw is fixedly connected below the upper connecting plate, and the lower end of the lead screw is fixed on the base; It also includes an upper crossbeam, on which a rotating lead screw nut is provided. The lead screw nut is screwed to the lead screw, and the lead screw nut is fixed on a gear mounting seat. The gear mounting seat is rotatably connected to the upper crossbeam through a bearing. The gear mounting base has a through hole in the center, and the gear mounting base is sleeved on the lead screw through the through hole. A driven gear is mounted on the gear mounting base, and the driven gear can rotate around the lead screw. A geared motor is mounted on the upper crossbeam, and a drive gear is mounted on the output shaft of the geared motor. The drive gear meshes with the driven gear.

[0007] Preferably, a lifting guide structure is provided between the upper crossbeam and the wall panel.

[0008] Preferably, the upper crossbeam is provided with a guide fixing seat near the wall panel, the guide fixing seat is provided with a slider, and each wall panel is provided with a guide rail, so that the upper crossbeam can be guided up and down along the guide rail by the slider.

[0009] Preferably, the upper crossbeam is provided with a vertical through hole, and a bearing mounting countersunk hole is provided below the vertical through hole, and the bearing is installed in the bearing mounting countersunk hole.

[0010] Preferably, the gear mounting base includes a mounting circular platform, and the through hole is located at the center of the mounting circular platform; A connecting sleeve is integrally provided below the mounting circular platform, and the diameter of the connecting sleeve is smaller than the diameter of the mounting circular platform; The bearing is mounted on the connecting sleeve, and the lower end of the connecting sleeve is provided with an external thread section. A nut is screwed onto the external thread section, and the nut can limit the axial movement of the bearing.

[0011] Preferably, the bearing is a thrust bearing.

[0012] Preferably, a limiting boss is provided below the side wall of the mounting circular platform, and the driven gear is sleeved on the mounting circular platform and set on the limiting boss.

[0013] Preferably, the upper end of the through hole is provided with a positioning hole, the diameter of which is larger than the diameter of the through hole, and the lead screw nut is installed in the positioning hole.

[0014] Preferably, the upper crossbeam is provided with a motor mounting bracket, and the geared motor is mounted on the motor mounting bracket.

[0015] A vulcanizing machine includes the above-described mold opening and closing device, wherein the bottom of the upper crossbeam of the mold opening and closing device is connected to the upper mold of the vulcanizing machine.

[0016] The advantages of this utility model are: 1. This utility model achieves the lifting and lowering of the upper crossbeam by fixing the lead screw and rotating the lead screw nut. Compared with the traditional structure, the reduction motor that indirectly drives the rotation of the lead screw nut is set on the upper crossbeam and can lift and lower synchronously with the upper crossbeam. This facilitates the maintenance of the reduction motor, eliminating the need to climb to the top of the wall panel to maintain the reduction motor, improving maintenance efficiency and reducing safety risks.

[0017] 2. Because the two ends of the lead screw are directly fixed in this invention, compared to the traditional structure which requires a certain length of lead screw to be reserved for bearing installation, the overall lead screw length is reduced. Furthermore, since the motor does not need to be mounted on the top of the wall panel, the overall height of the entire mold opening and closing device is also reduced, making it more adaptable to different installation spaces. In addition, since the bearings at both ends of the lead screw require frequent maintenance, directly fixing the two ends eliminates a significant amount of bearing maintenance time, indirectly improving production efficiency. Attached Figure Description

[0018] Figure 1 A front view of a mold opening and closing device; Figure 2 A side view of a mold opening and closing device; Figure 3 This is a partial schematic diagram of the lead screw nut of this utility model.

[0019] In the diagram: 1. Base; 2. Wall panel; 3. Upper crossbeam; 4. Gear motor; 5. Guide fixing seat; 6. Guide rail; 7. Slider; 8. Lead screw; 9. Gear mounting seat; 10. Lead screw nut; 11. Bearing; 12. Nut; 13. Driven gear; 14. Limiting boss; 15. Connecting sleeve; 16. Bearing mounting countersunk hole; 17. Drive gear. Detailed Implementation

[0020] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0021] like Figures 1 to 3 As shown, an opening and closing mold device includes a base 1, with two wall plates 2 on each side of the base 1. An upper connecting plate is provided above the two wall plates 2 on the same side, and a lead screw 8 is fixedly connected below the upper connecting plate. The lower end of the lead screw 8 is fixed to the base 1, or it can be fixed to the bottom of the two wall plates 2 by the lower connecting plate.

[0022] It also includes an upper crossbeam 3, which is connected to the upper mold of the vulcanizing machine. The upper crossbeam 3 is equipped with a rotating lead screw nut 10, which is screwed to the lead screw 8. The lead screw nut 10 is fixed on the gear mounting seat 9, and the gear mounting seat 9 is rotatably connected to the upper crossbeam 3 through the bearing 11.

[0023] Specifically, the gear mounting base 9 has a through hole in its center, and the gear mounting base 9 is sleeved on the lead screw 8 through the through hole. The driven gear 13 is mounted on the gear mounting base 9, and the driven gear 13 can rotate around the lead screw 8. A geared motor 4 is mounted on the upper crossbeam 3. Specifically, the upper crossbeam 3 has a motor mounting bracket, and the geared motor 4 is mounted on the motor mounting bracket. A driving gear 17 is mounted on the output shaft of the geared motor 4, and the driving gear 17 meshes with the driven gear 13.

[0024] The above structure achieves the lifting and lowering of the upper crossbeam 3 by fixing the lead screw 8 and rotating the lead screw nut 10. Compared with the traditional structure, the reduction motor 4 that indirectly drives the rotation of the lead screw nut 10 is set on the upper crossbeam 3, and can rise and fall synchronously with the upper crossbeam 3. This facilitates the maintenance of the reduction motor 4, eliminating the need to climb to the top of the wall panel 2 to maintain the reduction motor 4, improving maintenance efficiency and reducing safety risks.

[0025] Furthermore, since both ends of the lead screw 8 are directly fixed, compared to the traditional structure which requires a certain length of lead screw 8 to install the bearings 11, the overall length of the lead screw 8 is reduced. Also, since the motor does not need to be mounted on the top of the wall panel 2, the overall height of the entire mold opening and closing device is lowered, making it more adaptable to different installation spaces. In addition, because the bearings 11 at both ends of the lead screw 8 require frequent maintenance, the direct fixing of both ends eliminates a significant amount of bearing maintenance time, indirectly improving production efficiency.

[0026] This utility model provides a lifting guide structure between the upper crossbeam 3 and the wall panel 2. Specifically, the upper crossbeam 3 is provided with a guide fixing seat 5 near the wall panel 2, and a slider 7 is provided on the guide fixing seat 5. Each wall panel 2 is provided with a guide rail 6. The upper crossbeam 3 can be guided to rise and fall along the guide rail 6 by the slider 7, or it can be provided with a guide rod and guide sleeve structure, as long as the upper crossbeam 3 can rise and fall stably.

[0027] The gear mounting base 9 of this utility model includes a mounting circular platform, a through hole set in the center of the mounting circular platform, and a connecting sleeve 15 integrally provided below the mounting circular platform. The diameter of the connecting sleeve 15 is smaller than the diameter of the mounting circular platform. The bearing 11 is mounted on the connecting sleeve 15. The lower end of the connecting sleeve 15 is provided with an external thread section, and a nut 12 is screwed onto the external thread section. The nut 12 can limit the axial movement of the bearing 11.

[0028] The upper crossbeam 3 is provided with a vertical through hole, and a bearing mounting countersunk hole 16 is provided below the vertical through hole. The bearing 11 is installed in the bearing mounting countersunk hole 16 and is a thrust bearing.

[0029] A limiting boss 14 is provided on the lower side wall of the mounting circular platform. The driven gear 13 is sleeved on the mounting circular platform and set on the limiting boss 14. A positioning hole is provided at the upper end of the through hole of the mounting circular platform. The diameter of the positioning hole is larger than the diameter of the through hole. The lead screw nut 10 is installed in the positioning hole, and the positioning hole is used to position the lead screw nut 10.

[0030] This utility model also provides a vulcanizing machine, including the above-mentioned mold opening and closing device, wherein the bottom of the upper crossbeam 3 of the mold opening and closing device is connected to the upper mold of the vulcanizing machine.

[0031] The usage process of this utility model: When the geared motor 4 starts, it drives the drive gear 17 to rotate. The driven gear 13, which meshes with the drive gear 17, also rotates. The driven gear 13 drives the gear mounting seat 9 to rotate. The lead screw nut 10 on the gear mounting seat 9 rotates. Since the upper and lower ends of the lead screw 8 are fixed, the rotation of the lead screw nut 10 will drive the lead screw nut 10 to move up and down along the lead screw 8. Since the lead screw nut 10 is rotatably connected to the upper crossbeam 3 through the gear mounting seat 9, the up and down movement of the lead screw nut 10 will drive the upper crossbeam 3 to move up and down.

[0032] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A mold opening and closing device, characterized in that, Includes a base (1), on both sides of the base (1) are provided two wall panels (2), and an upper connecting plate is provided above the two wall panels (2) on the same side. A screw (8) is fixedly connected below the upper connecting plate, and the lower end of the screw (8) is fixed on the base (1). It also includes an upper crossbeam (3), on which a rotating lead screw nut (10) is provided. The lead screw nut (10) is screwed to the lead screw (8). The lead screw nut (10) is fixed on a gear mounting seat (9). The gear mounting seat (9) is rotatably connected to the upper crossbeam (3) through a bearing (11). The gear mounting base (9) has a through hole in the center. The gear mounting base (9) is sleeved on the lead screw (8) through the through hole. A driven gear (13) is mounted on the gear mounting base (9). The driven gear (13) can rotate around the lead screw (8). A geared motor (4) is installed on the upper crossbeam (3), and a drive gear (17) is installed on the output shaft of the geared motor (4). The drive gear (17) meshes with the driven gear (13).

2. The mold opening and closing device according to claim 1, characterized in that, A lifting guide structure is provided between the upper beam (3) and the wall panel (2).

3. The mold opening and closing device according to claim 2, characterized in that, The upper crossbeam (3) is provided with a guide fixing seat (5) near the wall panel (2), and a slider (7) is provided on the guide fixing seat (5). Each wall panel (2) is provided with a guide rail (6), and the upper crossbeam (3) can be guided up and down along the guide rail (6) by the slider (7).

4. The mold opening and closing device according to claim 1, characterized in that, The upper crossbeam (3) is provided with a vertical through hole, and a bearing mounting countersunk hole (16) is provided below the vertical through hole. The bearing (11) is installed in the bearing mounting countersunk hole (16).

5. The mold opening and closing device according to claim 1, characterized in that, The gear mounting base (9) includes a mounting circular platform, and the through hole is located at the center of the mounting circular platform; A connecting sleeve (15) is integrally provided below the mounting circular platform, and the diameter of the connecting sleeve (15) is smaller than the diameter of the mounting circular platform; The bearing (11) is mounted on the connecting sleeve (15). The lower end of the connecting sleeve (15) is provided with an external thread section, and a nut (12) is screwed onto the external thread section. The nut (12) can limit the axial movement of the bearing (11).

6. The mold opening and closing device according to claim 1, characterized in that, The bearing (11) is configured as a thrust bearing.

7. The mold opening and closing device according to claim 5, characterized in that, A limiting boss (14) is provided below the side wall of the mounting circular platform, and the driven gear (13) is sleeved on the mounting circular platform and set on the limiting boss (14).

8. The mold opening and closing device according to claim 1, characterized in that, The upper end of the through hole is provided with a positioning hole, the diameter of which is larger than the diameter of the through hole, and the lead screw nut (10) is installed in the positioning hole.

9. The mold opening and closing device according to claim 1, characterized in that, The upper crossbeam (3) is provided with a motor mounting bracket, and the geared motor (4) is mounted on the motor mounting bracket.

10. A vulcanizing machine, characterized in that, Includes the mold opening and closing device as described in any one of claims 1 to 9, wherein the bottom of the upper crossbeam (3) of the mold opening and closing device is connected to the upper mold of the vulcanizing machine.

Images