A dual-function electric mold adjustment mechanism for an injection molding machine

Abstract

The invention discloses a dual-function electric mold adjustment mechanism for an injection molding machine, comprising a housing, a mold adjustment device, a mold opening and closing device, a servo motor, a mounting plate, a reversing mechanism and a bevel gear. The invention is characterized in that a spline output shaft is arranged on the servo motor, a mold adjustment gear and a mold opening and closing gear are arranged on the spline output shaft, a spacer is arranged between the mold adjustment gear and the mold opening and closing gear, a bearing is also arranged on one side of the mold opening and closing gear, the servo motor is connected to the housing through the mounting plate, the mold adjustment gear is meshed and connected with the center gear ring of the mold adjustment device through the bevel gear, the mold opening and closing gear is meshed and connected with the four-corner gear of the mold opening and closing device through the bevel gear, the reversing mechanism is connected to the bearing, and the meshing state of the mold adjustment gear and the mold opening and closing gear with the spline output shaft of the servo motor is changed through the reversing mechanism, so as to realize the two functions of mold adjustment and mold opening and closing, the structure is simpler, the operation is more convenient, the servo motor can freely set the rotation speed, change the mold adjustment speed, and is more efficient than a motor with a reducer.

Description

Technical Field

[0001] The invention relates to an injection molding machine, in particular to a dual-function electric mold adjusting mechanism of the injection molding machine. Background Art

[0002] The mold adjustment mechanism of the traditional injection molding machine uses a large gear ring to drive four small gear rings, which synchronously drive the rear template to move forward and backward. However, the large gear ring is easy to deform during processing and requires a larger lathe to process. The mold adjustment mechanism of some large models requires multiple sets of gears to make a transition before it can engage with the nut on the tie rod. The electric injection molding machine also uses the same mechanism, but the small driving motor is replaced by a servo motor with a reducer. The opening and closing of the mold also requires an electric motor to drive the ball screw to drive the connecting rod mechanism to open and close the mold, which is more cumbersome to operate. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a dual-function electric mold adjusting mechanism for an injection molding machine, and provides a mold adjusting mechanism for an injection molding machine that realizes the two functions of mold adjusting and mold opening and closing. To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a dual-function electric mold adjustment mechanism of an injection molding machine, including a shell, a mold adjustment device, a mold opening and closing device, a servo motor, a mounting plate, a reversing mechanism and a bevel gear, the servo motor is provided with a spline output shaft, the spline output shaft is provided with a mold adjustment gear and a mold opening and closing gear, a spacer is provided between the mold adjustment gear and the mold opening and closing gear, the mold adjustment gear and the mold opening and closing gear are respectively connected to the spacer by bolts, a bearing is also provided on one side of the mold opening and closing gear, the servo motor is connected to the shell through the mounting plate, the mold opening and closing device is arranged around the shell, the mold adjustment device is arranged in the middle of the shell, the mold adjustment gear is meshed with the center gear ring of the mold adjustment device through the bevel gear, the mold opening and closing gear is meshed with the four-corner gear of the mold opening and closing device through the bevel gear, the reversing mechanism is connected to the bearing, and the bearing drives the mold adjustment gear and the mold opening and closing gear to move along the spline output shaft under the drive of the reversing mechanism.

[0004] Furthermore, the reversing mechanism includes a cylinder, a guide rail pressure plate, a positioning slide and a reversing slider, the guide rail pressure plate is fixed on the shell, the cylinder is fixed on the mounting plate, the upper end of the positioning slide is connected to the cylinder, the positioning slide is slidably connected to the guide rail pressure plate, an offset groove is provided on the inner side of the positioning slide, the reversing slider is slidably arranged in the offset groove, the bearing is arranged in the reversing slider, the bearing can move in the axial direction with the dislocation of the reversing slider, driving the mold adjusting gear and the opening and closing mold gear to move along the spline output shaft, thereby changing the meshing state of the mold adjusting gear and the opening and closing mold gear with the spline output shaft.

[0005] Furthermore, the reversing slider is configured as a rectangular structure, cylindrical hinge ears are provided at both ends of the upper portion of the reversing slider, and a bearing hole is provided at the lower portion of the reversing slider.

[0006] Furthermore, the dislocation groove is arranged as a stepped structure.

[0007] Furthermore, the mounting plate is configured as a U-shaped structure, which facilitates the installation of the servo motor and the cylinder, while also protecting the gears.

[0008] Furthermore, an internal spline is arranged at the center of the mold opening and closing gear, and the internal spline cooperates with the spline output shaft to transmit power.

[0009] Furthermore, an internal spline is provided at the center of the mold adjusting gear, and the internal spline cooperates with the spline output shaft to transmit power.

[0010] Compared with the prior art, the present invention has the following beneficial effects: the meshing state of the mold adjusting gear and the mold opening and closing gear with the spline output shaft of the servo motor is changed through the reversing mechanism, thereby realizing the two functions of mold adjusting and mold opening and closing, the structure is simpler, the operation is more convenient, the servo motor can freely set the speed, change the mold adjusting speed, and is more efficient than a motor with a reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0012] Attached Figure 1 It is a schematic diagram of the structure of the present invention;

[0013] Attached Figure 2 It is the structural diagram of the motor;

[0014] Attached Figure 3 It is a structural diagram of the reversing mechanism;

[0015] Attached Figure 4 It is a structural schematic diagram of the positioning slide;

[0016] Attached Figure 5 It is a structural schematic diagram of the reversing slider;

[0017] Attached Figure 6 It is a schematic diagram of the structure of gear transmission meshing;

[0018] In the attached drawings: 1. housing, 2. mold adjusting device, 3. mold opening and closing device, 4. servo motor, 5. mounting plate, 6. reversing mechanism, 7. mold adjusting gear, 8. mold opening and closing gear, 9. spacer, 10. bearing, 11. center gear ring, 12. four-corner gear, 13. cylinder, 14. guide rail pressure plate, 15. positioning slide plate, 16. reversing slide block, 17. offset groove, 18. hinge ear, 19. bearing hole. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 The present invention is further described with reference to the accompanying drawings and specific embodiments.

[0020] As attached Figure 1 , Attachment Figure 2 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 and attached Figure 6 As shown, a dual-function electric mold adjustment mechanism of an injection molding machine includes a housing 1, a mold adjustment device 2, a mold opening and closing device 3, a servo motor 4, a mounting plate 5, a reversing mechanism 6 and a bevel gear. The servo motor 4 is provided with a spline output shaft, and the spline output shaft is provided with a mold adjustment gear 7 and a mold opening and closing gear 8. A spacer sleeve 9 is provided between the mold adjustment gear 7 and the mold opening and closing gear 8. The mold adjustment gear 7 and the mold opening and closing gear 8 are respectively connected to the spacer sleeve 9 by bolts. A bearing 10 is also provided on one side of the mold opening and closing gear 8. The servo motor 4 is connected to the housing 1 through the mounting plate 5, the mold opening and closing device 3 is arranged around the housing 1, the mold adjusting device 2 is arranged in the middle of the housing 1, the mold adjusting gear 7 is meshed and connected with the central gear ring 11 of the mold adjusting device 2 through a bevel gear, and the mold opening and closing gear 8 is meshed and connected with the four-corner gear 12 of the mold opening and closing device 3 through a bevel gear. The reversing mechanism 6 is connected to the bearing 10, and the bearing 10 drives the mold adjusting gear 7 and the mold opening and closing gear 8 along the spline output shaft under the drive of the reversing mechanism 6.

[0021] Furthermore, the reversing mechanism 6 includes a cylinder 13, a guide rail pressure plate 14, a positioning slide 15 and a reversing slider 16, wherein the guide rail pressure plate 14 is fixed on the housing 1, the cylinder 13 is fixed on the mounting plate 5, the upper end of the positioning slide 15 is connected to the cylinder 13, the positioning slide 15 is slidably connected to the guide rail pressure plate 14, an offset groove 17 is provided on the inner side of the positioning slide 15, the reversing slider 16 is slidably arranged in the offset groove 17, the bearing 10 is arranged in the reversing slider 16, the bearing 10 can move in the axial direction with the dislocation movement of the reversing slider 16, and drive the mold adjusting gear 7 and the opening and closing mold gear 8 to move along the spline output shaft, thereby changing the meshing state of the mold adjusting gear 7 and the opening and closing mold gear 8 with the spline output shaft.

[0022] Furthermore, the reversing slider 16 is configured as a rectangular structure, cylindrical hinge ears 18 are provided at both ends of the upper portion of the reversing slider 16 , and a bearing hole 19 is provided at the lower portion of the reversing slider 16 .

[0023] Furthermore, the dislocation groove 17 is configured as a stepped structure.

[0024] Furthermore, the mounting plate 5 is configured as a U-shaped structure, which facilitates the installation of the servo motor 4 and the cylinder 13 and protects the gears.

[0025] Furthermore, an internal spline is provided at the center of the mold opening and closing gear 8, and the internal spline cooperates with the spline output shaft to transmit power.

[0026] Furthermore, an internal spline is provided at the center of the mold adjusting gear 7, and the internal spline cooperates with the spline output shaft to transmit power.

[0027] The working principle and working process of the present invention are as follows: when the positioning slide plate 15 of the reversing mechanism 6 is at the lower working position, the center of the mold opening and closing gear 8 is provided with an internal spline that cooperates with the spline output shaft. The positioning slide plate 15 can mechanically limit the mold opening and closing gear 8 under the working condition without upper pulling force, ensuring that the mold opening and closing gear 8 is meshed with the spline output shaft. The mold opening and closing gear 8 transmits power to the four-corner gear 12 through the bevel gear, driving the ball screw to drive the crosshead to realize the mold opening and closing movement;

[0028] When the mold adjustment movement needs to be switched, the cylinder 13 drives the positioning slide 15 to move upward, the reversing slide 16 enters the lower end of the offset groove 17, and the reversing slide 16 moves outward as a whole in the axial direction, driving the bearing 10 to move outward. At this time, the mold adjustment gear 7 is engaged with the spline output shaft, and the center gear ring 11 is driven to rotate through the bevel gear, and the rear nut is synchronously driven to rotate to realize the mold adjustment movement.

[0029] Compared with the prior art, the present invention has the following beneficial effects: the meshing state of the mold adjusting gear and the mold opening and closing gear with the spline output shaft of the servo motor is changed through the reversing mechanism, thereby realizing the two functions of mold adjusting and mold opening and closing, the structure is simpler, the operation is more convenient, the servo motor can freely set the speed, change the mold adjusting speed, and is more efficient than a motor with a reducer.

[0030] Utilizing the technical solution described in the present invention, or those skilled in the art designing a similar technical solution inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A dual-function electric mold adjustment mechanism for an injection molding machine, comprising a housing (1), a mold adjustment device (2), a mold opening and closing device (3), a servo motor (4), a mounting plate (5), a reversing mechanism (6) and a bevel gear, wherein: The servo motor (4) is provided with a spline output shaft, and a mold adjustment gear (7) and a mold opening and closing gear (8) are provided on the spline output shaft. A spacer (9) is provided between the mold adjustment gear (7) and the mold opening and closing gear (8). The mold adjustment gear (7) and the mold opening and closing gear (8) are respectively connected to the spacer (9) by bolts. A bearing (10) is provided on one side of the mold opening and closing gear (8). The servo motor (4) is connected to the housing (1) by a mounting plate (5). The mold opening and closing device (3) is provided on the housing. The mold adjusting device (2) is arranged in the middle of the housing (1); the mold adjusting gear (7) is meshed with the central gear ring (11) of the mold adjusting device (2) through a bevel gear; the mold opening and closing gear (8) is meshed with the four-corner gear (12) of the mold opening and closing device (3) through a bevel gear; the reversing mechanism (6) is connected to the bearing (10); and the bearing (10) drives the mold adjusting gear (7) and the mold opening and closing gear (8) to move along the spline output shaft under the drive of the reversing mechanism (6); The reversing mechanism (6) comprises a cylinder (13), a guide rail pressure plate (14), a positioning slide plate (15) and a reversing slide block (16); the guide rail pressure plate (14) is fixed on a housing (1); the cylinder (13) is fixed on a mounting plate (5); the upper end of the positioning slide plate (15) is connected to the cylinder (13); the positioning slide plate (15) is connected to the guide rail pressure plate (14) in a slidable manner; a dislocation groove (17) is provided on the inner side of the positioning slide plate (15); the dislocation groove (17) is provided in a stepped structure; The reversing slider (16) is slidably arranged in the dislocation groove (17), hinge ears (18) are arranged at both ends of the upper part of the reversing slider (16), and a bearing hole (19) is arranged at the lower part of the reversing slider (16); The bearing (10) is arranged in the reversing slider (16). The bearing (10) can move in the axial direction as the reversing slider (16) is misaligned, driving the mold adjusting gear (7) and the mold opening and closing gear (8) to move along the spline output shaft, thereby changing the meshing state of the mold adjusting gear (7) and the mold opening and closing gear (8) with the spline output shaft.

2. The dual-function electric mold adjustment mechanism of the injection molding machine according to claim 1 is characterized in that The reversing slide block (16) is arranged in a rectangular structure, and cylindrical hinge ears (18) are arranged at both ends of the upper part of the reversing slide block (16).

3. The dual-function electric mold adjustment mechanism of the injection molding machine according to claim 1 is characterized in that The mounting plate (5) is configured as a U-shaped structure.

4. The dual-function electric mold adjustment mechanism of the injection molding machine according to claim 1, characterized in that The center of the mold opening and closing gear (8) is provided with an internal spline.

5. The dual-function electric mold adjustment mechanism of the injection molding machine according to claim 1 is characterized in that An internal spline is arranged at the center of the mold adjusting gear (7).

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