Composite planetary reducer for electric melt glue of injection molding machine

Abstract

The utility model discloses a compound planetary reducer for electric melt glue of an injection molding machine, which relates to the technical field of reducers and comprises a planetary reducer, a parallel gear box is arranged on the right side of the planetary reducer and comprises a second shell, a second input shaft is arranged on the upper side in the second shell, and a second output shaft is arranged on the lower side in the second shell. A power input shaft head is arranged at the outer end of the second input shaft, a second reduction gear is fixedly arranged on the second input shaft, a first input shaft is arranged on the lower side in the second shell, a first reduction gear is fixedly arranged at one end of the first input shaft, and the first reduction gear is meshed with the second reduction gear. The first reduction gear and the second reduction gear are matched to perform primary reduction with a fixed gear ratio, so that the planetary reducer has higher stability, continuous and stable power can be conveniently transmitted to the planetary reducer, the power transmission efficiency is improved, the power input shaft head can be conveniently connected with an original hydraulic motor or servo motor, and the power transmission efficiency is improved. The equipment replacement cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reducers, in particular to a composite planetary reducer for electric melt adhesive of an injection molding machine. Background Art

[0002] Melt injection of injection molding machines is a common plastic molding technology widely used in industrial manufacturing. The melt injection process usually starts with plastic pellets. These pellets are heated and extruded by the melt machine and heated to a molten state to form a viscous melt. The melting temperature and time of the melt are key parameters that directly affect the fluidity of the plastic and the quality of the final product. The molten plastic is injected into the mold through an injection machine. The injection machine uses high pressure to push the molten plastic into the closed cavity of the mold to fill the cavity inside the mold. This process requires precise control of the injection speed and pressure to ensure that the plastic is evenly distributed in the mold and can fill all the details and complex shapes.

[0003] The reducer is also responsible for transmitting torque during the injection molding process, that is, amplifying and transmitting the torque, so that the force required in the injection process can be output smoothly, thereby ensuring the uniformity and stability of the injection of the melt. The selection and design of the reducer should be based on the specific requirements of the injection molding machine. Therefore, the type of reducer, gear ratio and torque transmission capacity need to be accurately matched and adjusted according to the actual situation.

[0004] The existing injection molding machine melts and injects glue by driving the screw with a hydraulic motor, and the molten plastic is injected into the mold through the injection machine. During the injection process, the injection speed and pressure need to be precisely controlled to ensure that the plastic in the mold can evenly fill every detail and corner. However, due to the limitations of the hydraulic motor drive, the injection screw cannot be driven more accurately, and the hydraulic motor system is inefficient and prone to oil leakage, causing many inconveniences to customers using the injection molding machine. Utility Model Content

[0005] The purpose of the utility model is to provide a composite planetary reducer for electric melt adhesive of an injection molding machine to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A composite planetary reducer for electric melt adhesive of an injection molding machine comprises a planetary reducer, a parallel gear box is arranged on the right side of the planetary reducer, the parallel gear box comprises a second housing, a second input shaft is arranged on the upper inner side of the second housing, a power input shaft head is arranged on the outer end of the second input shaft, a second reduction gear is fixedly arranged on the second input shaft, a first input shaft is arranged on the lower inner side of the second housing, a first reduction gear is fixedly arranged on one end of the first input shaft, and the first reduction gear is meshed with the second reduction gear.

[0008] As a further solution of the utility model: a sun gear is fixedly provided at the end of the first input shaft away from one end of the parallel gear box, the planetary reducer includes a first shell, a planetary bracket is rotatably installed in the first shell, the planetary bracket has an output shaft, a glue injection screw is sleeved on the output shaft, a plurality of planetary gears are rotatably installed on the planetary bracket through a rotating shaft and the planetary gears are meshed with the sun gear, an inner gear ring is fixedly provided on the inner wall of the first shell and the inner gear ring is meshed with the planetary gears.

[0009] As a further solution of the present invention: the first shell and the second shell are fixedly connected by bolts and nut fasteners.

[0010] As a further solution of the present utility model: the power input shaft head is a universal shaft head.

[0011] As a further solution of the utility model: the first reduction gear, the second reduction gear, the planetary gear and the sun gear are plated with a wear-resistant coating.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] 1. The primary reduction with a fixed gear ratio is performed by the cooperation of the first reduction gear and the second reduction gear, which has high stability, facilitates the continuous and stable power transmission to the planetary reducer, improves the power transmission efficiency, and the power input shaft head can be conveniently connected to the original hydraulic motor or servo motor, reducing the equipment replacement cost;

[0014] 2. The sun gear and the planetary gear cooperate to perform secondary deceleration. The power on the sun gear is transmitted to the output shaft through several planetary gears and planetary brackets, which can achieve higher transmission efficiency and more precise transmission. The planetary reducer cooperates with the parallel gearbox for deceleration, which can make the structure compact and occupy less space. It can not only save costs, but also improve the energy utilization efficiency of the device. At the same time, the planetary reducer and the parallel gearbox can perform precise power output, which is convenient for accurately controlling the travel distance of the injection screw, thereby controlling the injection amount of the electric melt glue of the injection molding machine and improving the production quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of the utility model.

[0016] Figure 2 It is a schematic diagram of the main structure of an embodiment of the utility model.

[0017] Figure 3 It is a left-side structural schematic diagram of an embodiment of the utility model.

[0018] Figure 4 It is a right side structural schematic diagram of an embodiment of the utility model.

[0019] Figure 5 It is a schematic cross-sectional structure diagram of an embodiment of the utility model.

[0020] Notes on figure numbers: 1. planetary reducer; 11. first housing; 12. planetary gear; 13. output shaft; 14. planetary carrier; 15. sun gear; 16. first input shaft; 17. inner ring gear; 2. parallel gear box; 21. second housing; 22. first reduction gear; 23. second reduction gear; 24. second input shaft. DETAILED DESCRIPTION

[0021] The following embodiments will be combined with the accompanying drawings to describe the utility model in detail. In the drawings or descriptions, similar or identical parts use the same reference numerals, and in actual applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the utility model are only used to illustrate the utility model, and are not used to limit the scope of the utility model. Any obvious modifications or changes made to the utility model do not depart from the spirit and scope of the utility model.

[0022] Example

[0023] See also Figures 1 to 5 In the embodiment of the utility model, a composite planetary reducer for electric melt adhesive of an injection molding machine comprises a planetary reducer 1, a parallel gear box 2 is arranged on the right side of the planetary reducer 1, and the parallel gear box 2 comprises a second housing 21, a second input shaft 24 is arranged on the upper side of the second housing 21, a power input shaft head is arranged on the outer end of the second input shaft 24, a second reduction gear 23 is fixedly arranged on the second input shaft 24, a first input shaft 16 is arranged on the lower side of the second housing 21, a first reduction gear 22 is fixedly arranged on one end of the first input shaft 16, and the first reduction gear 22 It meshes with the second reduction gear 23 (generally, an injection molding machine requires a reducer with a speed ratio of about 10. Due to the transmission principle of the planetary reducer 1, the reducer load-bearing capacity of the single-stage planetary reducer 1 is poor when the speed ratio is 10, but the two-stage planetary reducer 1 is large and it is difficult to achieve a speed ratio of 10). The first reduction gear 22 and the second reduction gear 23 cooperate to perform primary reduction with a fixed gear ratio. It has high stability and is convenient for continuous and stable power transmission to the planetary reducer 1, thereby improving power transmission efficiency. The power input shaft head can be conveniently connected to the original hydraulic motor or servo motor, thereby reducing equipment replacement costs.

[0024] A sun gear 15 is fixedly arranged at one end of the first input shaft 16 away from the parallel gear box 2. The planetary reducer 1 includes a first housing 11, and the first housing 11 and the second housing 21 are fixedly connected by bolts and nuts. A planetary bracket 14 is rotatably installed in the first housing 11, and the planetary bracket 14 has an output shaft 13, and a glue injection screw is sleeved on the output shaft 13. A plurality of planetary gears 12 are rotatably installed on the planetary bracket 14 through a rotating shaft, and the planetary gears 12 are meshed with the sun gear 15. An inner gear ring 17 is fixedly arranged on the inner wall of the first housing 11, and the inner gear ring 17 is meshed with the sun gear 15. The star wheel 12 is meshed, and the sun wheel 15 cooperates with the planetary wheel 12 to perform secondary reduction. The power on the sun wheel 15 is transmitted to the output shaft 13 through a number of planetary wheels 12 and a planetary bracket 14, which can achieve higher transmission efficiency and more precise transmission. The planetary reducer 1 cooperates with the parallel gear box 2 for reduction, which can make the structure compact and occupy less space, which can not only save costs but also improve the energy utilization efficiency of the device. At the same time, the planetary reducer 1 and the parallel gear box 2 can perform precise power output, which is convenient for accurately controlling the travel distance of the injection screw, thereby controlling the injection amount of the electric melt glue of the injection molding machine, and improving the production quality of the product.

[0025] When the device is in use, the servo motor or hydraulic motor is connected to the power input shaft head, and then the servo motor or hydraulic motor is started, the second input shaft 24 drives the second reduction gear 23 to rotate, and the power is transmitted to the sun gear 15 through the first reduction gear 22, and then the sun gear 15 drives the planetary gear 12 and the planetary bracket 14 to rotate, so that the output shaft 13 and the injection screw rotate, thereby realizing the servo motor or hydraulic motor to transmit power to the injection screw, so as to achieve the purpose of more precise control of the injection screw.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A composite planetary reducer for an electric melt injection molding machine, comprising a planetary reducer (1), characterized in that: A parallel gearbox (2) is arranged on the right side of the planetary reducer (1), and the parallel gearbox (2) comprises a second housing (21), a second input shaft (24) is arranged on the upper inner side of the second housing (21), a power input shaft head is arranged on the outer end of the second input shaft (24), a second reduction gear (23) is fixedly arranged on the second input shaft (24), a first input shaft (16) is arranged on the lower inner side of the second housing (21), a first reduction gear (22) is fixedly arranged on one end of the first input shaft (16), and the first reduction gear (22) is meshed with the second reduction gear (23).

2. The composite planetary reducer for electric melt adhesive of injection molding machine according to claim 1, characterized in that: A sun gear (15) is fixedly arranged at one end of the first input shaft (16) away from the parallel gear box (2). The planetary reducer (1) comprises a first housing (11). A planetary bracket (14) is rotatably mounted in the first housing (11). The planetary bracket (14) has an output shaft (13). A rubber injection screw is sleeved on the output shaft (13). A plurality of planetary gears (12) are rotatably mounted on the planetary bracket (14) via a rotating shaft, and the planetary gears (12) mesh with the sun gear (15). An inner gear ring (17) is fixedly arranged on the inner wall of the first housing (11), and the inner gear ring (17) meshes with the planetary gears (12).

3. The composite planetary reducer for electric melt adhesive of injection molding machine according to claim 2, characterized in that: The first shell (11) and the second shell (21) are fixedly connected by bolt and nut fasteners.

4. The composite planetary reducer for electric melt adhesive injection molding machine according to claim 1, characterized in that: The power input shaft head is a universal shaft head.

5. The composite planetary reducer for electric melt adhesive of injection molding machine according to claim 1, characterized in that: The first reduction gear (22), the second reduction gear (23), the planetary gear (12) and the sun gear (15) are plated with a wear-resistant coating.

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