Gear transmission device for injection molding machine

Abstract

The utility model discloses a gear transmission device for an injection molding machine. The utility model relates to the technical field of injection molding machines, including a fixed support block, a movable support block is arranged on one side of the fixed support block, a plurality of guide shafts are arranged between the movable support block and the fixed support block, a gear moving mechanism and a lubrication mechanism are arranged on the movable support block, and the gear moving mechanism includes a first mounting frame, a driving motor is mounted on the first mounting frame, a driving gear is fixedly connected to the output shaft end of the driving motor, and a first driven gear is arranged on one side of the driving gear. The gear transmission device for an injection molding machine drives a movable shaft sleeve to rotate through a driving motor, and the movable shaft sleeve moves on the guide shaft through an internal thread and an external thread during the rotation process, so that the movable shaft sleeve moves through a second mounting frame to drive the movable support block to move, replacing a hydraulic cylinder to drive the movable support block to move along the guide shaft, thereby reducing the installation space occupied and effectively improving the utilization rate of the space.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to a gear transmission device for an injection molding machine. Background Art

[0002] The injection molding machine is provided with a dynamic support block and a fixed support block. The dynamic support block is used to install the dynamic mold, and the fixed support block is used to install the fixed mold. The dynamic mold is fixedly mounted on a first supporting surface of the dynamic support block, and the fixed mold is fixedly mounted on a second supporting surface of the fixed support block. In the prior art, the dynamic mold and the fixed mold are closed and opened by a hydraulic cylinder. The cylinder body of the hydraulic cylinder is long, and the space occupied is large, so the space utilization is not ideal. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a gear transmission device for an injection molding machine, which solves the problem that the clamping and opening of the movable mold and the fixed mold are driven by a hydraulic cylinder, the cylinder body of the hydraulic cylinder is long, the space occupied is large, and the space utilization is not ideal.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a gear transmission device for an injection molding machine, comprising a fixed support block, a movable support block is provided on one side of the fixed support block, a plurality of guide shafts are provided between the movable support block and the fixed support block, and a gear moving mechanism and a lubrication mechanism are provided on the movable support block;

[0005] The gear moving mechanism includes a first mounting frame, a driving motor is mounted on the first mounting frame, a driving gear is fixedly connected to the end of the output shaft of the driving motor, a first driven gear is provided on one side of the driving gear, four supporting wheels are provided on the inner side of the first driven gear, four second mounting frames are provided on the outer side of the first driven gear, a moving shaft sleeve is rotatably connected to the four second mounting frames, a second driven gear is fixedly connected to the moving shaft sleeve, an internal thread is provided on the inner wall surface of the moving shaft sleeve, and an external thread is provided on the surface of the guide shaft.

[0006] Preferably, the first mounting frame is fixedly mounted on the dynamic support block by bolts, and the first mounting frame is rotationally connected to the driving gear.

[0007] Preferably, the driving gear is meshed with a first driven gear, and the first driven gear is meshed with four of the second driven gears.

[0008] Preferably, the four support wheels are all rotatably connected to the dynamic support block, and the four support wheels are in contact with the inner wall of the first driven gear.

[0009] Preferably, the internal thread matches the external thread, and the movable sleeve is threadably connected to the guide shaft via the external thread and the internal thread.

[0010] Preferably, four of the second mounting frames are fixedly mounted on the dynamic support block, and the guide shaft and the second mounting frames are intersected.

[0011] Preferably, the lubrication mechanism comprises an oil tank, a scale bar is provided on the oil tank, a connecting main pipe is provided on the top of the oil tank, and an oil pump is provided on the connecting main pipe.

[0012] Preferably, the connecting main pipe is provided with two connecting branch pipes, and the two connecting branch pipes are each provided with a plurality of oil spray heads.

[0013] Beneficial Effects

[0014] The utility model provides a gear transmission device for an injection molding machine. Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The gear transmission device of the injection molding machine drives the movable sleeve to rotate through the driving motor. The movable sleeve moves on the guide shaft through the internal thread and the external thread during the rotation, so that the movable sleeve moves through the second mounting frame to drive the movable support block to move, instead of the hydraulic cylinder driving the movable support block to move along the guide shaft, thereby reducing the installation space occupied and effectively improving the utilization rate of the space.

[0016] 2. The gear transmission device of the injection molding machine delivers the lubricating oil in the oil tank to multiple oil spray heads through an oil pump, and uses the oil spray heads to spray the lubricating oil for lubrication, thereby effectively improving the lubrication effect on the gears. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the connection structure between the driving motor and the first driven gear of the utility model;

[0019] Figure 3 It is a schematic diagram of the connection structure between the guide shaft and the first driven gear of the utility model;

[0020] Figure 4 This is a schematic diagram of the lubrication mechanism structure of the utility model.

[0021] In the figure: 1. fixed support block; 2. gear moving mechanism; 201. driving motor; 202. driving gear; 203. first driven gear; 204. supporting wheel; 205. second driven gear; 206. moving sleeve; 207. internal thread; 208. external thread; 209. second mounting bracket; 210. first mounting bracket; 3. moving support block; 4. lubrication mechanism; 401. oil tank; 402. scale bar; 403. connecting main pipe; 404. oil pump; 405. connecting branch pipe; 406. oil spray head; 5. guide shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-3 The utility model provides a technical solution: a gear transmission device for an injection molding machine, comprising a fixed support block 1, a movable support block 3 is arranged on one side of the fixed support block 1, a plurality of guide shafts 5 are arranged between the movable support block 3 and the fixed support block 1, a gear moving mechanism 2 and a lubrication mechanism 4 are arranged on the movable support block 3, and the movable support block 3 can be driven to move along the guide shaft 5 by the gear moving mechanism 2 instead of the hydraulic cylinder, thereby reducing the installation space occupied and effectively improving the utilization rate of the space.

[0024] The gear moving mechanism 2 includes a first mounting frame 210, on which a driving motor 201 is mounted, and a driving gear 202 is fixedly connected to the output shaft end of the driving motor 201, and the first mounting frame 210 is fixedly mounted on the moving support block 3 by bolts, and the first mounting frame 210 is rotatably connected to the driving gear 202, so that the driving gear 202 can rotate in the first mounting frame 210, and a first driven gear 203 is provided on one side of the driving gear 202, and four support wheels 204 are provided on the inner side of the first driven gear 203, and the four support wheels 204 are all rotatably connected to the moving support block 3, and The four support wheels 204 are in contact with the inner wall of the first driven gear 203, and the first driven gear 203 can be supported and limited by the four support wheels 204 so that it can rotate. Four second mounting frames 209 are arranged outside the first driven gear 203, and the four second mounting frames 209 are fixedly mounted on the moving support block 3, and the guide shaft 5 and the second mounting frames 209 are arranged through, so that the second mounting frames 209 can move along the guide shaft 5, and the four second mounting frames 209 are rotatably connected with the moving shaft sleeves 206, and the moving shaft sleeves 206 are fixedly connected with the second driven gear 205, and the active The gear 202 is meshed with the first driven gear 203, and the first driven gear 203 is meshed with the four second driven gears 205. The inner wall surface of the movable sleeve 206 is provided with an internal thread 207, and the surface of the guide shaft 5 is provided with an external thread 208, and the internal thread 207 matches the external thread 208. The movable sleeve 206 and the guide shaft 5 are threadedly connected through the external thread 208 and the internal thread 207, so that when the movable sleeve 206 rotates, it can move along the guide shaft 5, so that the movable support block 3 can be driven to move through the second mounting frame 209 to realize the closing and opening of the movable mold and the fixed mold, which can be driven by the driving motor 201 drives the driving gear 202 to rotate, the driving gear 202 drives the first driven gear 203 to rotate, the first driven gear 203 drives the second driven gear 205 to rotate, the second driven gear 205 drives the moving sleeve 206 to rotate, and the moving sleeve 206 moves on the guide shaft 5 through the internal thread 207 and the external thread 208 during the rotation, so that the moving sleeve 206 moves through the second mounting frame 209 to drive the moving support block 3 to move, instead of the hydraulic cylinder driving the moving support block 3 to move along the guide shaft 5, thereby reducing the occupied installation space and effectively improving the utilization rate of the space.

[0025] See also Figure 1 and Figure 4The lubricating mechanism 4 includes an oil tank 401, and a scale bar 402 is provided on the oil tank 401. The scale bar 402 can be used to know the remaining amount of lubricating oil in the oil tank 401, so that the staff can intuitively know the amount of lubricating oil, so that the staff can replenish the lubricating oil in time. A connecting main pipe 403 is provided on the connecting main pipe 403, and an oil pump 404 is provided on the connecting main pipe 403. Two connecting branch pipes 405 are provided on the connecting main pipe 403. A plurality of oil spray heads 406 are respectively installed at the driving gear 202, the first driven gear 203 and the four second driven gears 205. The lubricating oil in the oil tank 401 can be sent to the plurality of oil spray heads 406 through the oil pump 404, and the lubricating oil is sprayed out by the oil spray heads 406 for lubrication, thereby effectively improving the lubrication effect on the gears.

[0026] During operation, the driving motor 201 drives the active gear 202 to rotate, the active gear 202 drives the first driven gear 203 to rotate, the first driven gear 203 drives the second driven gear 205 to rotate, the second driven gear 205 drives the movable sleeve 206 to rotate, and the movable sleeve 206 moves on the guide shaft 5 through the internal thread 207 and the external thread 208 during the rotation, so that the movable sleeve 206 moves through the second mounting frame 209 to drive the movable support block 3 to move, instead of the hydraulic cylinder driving the movable support block 3 to move along the guide shaft 5, thereby reducing the occupied installation space and effectively improving the utilization rate of the space.

[0027] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A gear transmission device for an injection molding machine, comprising a fixed support block (1), characterized in that: A movable support block (3) is provided on one side of the fixed support block (1); a plurality of guide shafts (5) are provided between the movable support block (3) and the fixed support block (1); and a gear moving mechanism (2) and a lubricating mechanism (4) are provided on the movable support block (3); The gear moving mechanism (2) comprises a first mounting frame (210), a driving motor (201) is mounted on the first mounting frame (210), an output shaft end of the driving motor (201) is fixedly connected to a driving gear (202), a first driven gear (203) is provided on one side of the driving gear (202), four supporting wheels (204) are provided on the inner side of the first driven gear (203), four second mounting frames (209) are provided on the outer side of the first driven gear (203), a moving shaft sleeve (206) is rotatably connected to each of the four second mounting frames (209), a second driven gear (205) is fixedly connected to the moving shaft sleeve (206), an inner wall surface of the moving shaft sleeve (206) is provided with an internal thread (207), and a surface of the guide shaft (5) is provided with an external thread (208).

2. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The first mounting frame (210) is fixedly mounted on the dynamic support block (3) by means of bolts, and the first mounting frame (210) is rotationally connected to the driving gear (202).

3. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The driving gear (202) meshes with the first driven gear (203), and the first driven gear (203) meshes with the four second driven gears (205).

4. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The four support wheels (204) are all rotatably connected to the dynamic support block (3), and the four support wheels (204) are in contact with the inner wall of the first driven gear (203).

5. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The internal thread (207) matches the external thread (208), and the movable shaft sleeve (206) is threadedly connected to the guide shaft (5) via the external thread (208) and the internal thread (207).

6. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The four second mounting frames (209) are fixedly mounted on the dynamic support block (3), and the guide shaft (5) and the second mounting frames (209) are intersected.

7. The gear transmission device for an injection molding machine according to claim 1, characterized in that: The lubrication mechanism (4) comprises an oil tank (401), a scale bar (402) is provided on the oil tank (401), a connecting main pipe (403) is provided on the top of the oil tank (401), and an oil pump (404) is provided on the connecting main pipe (403).

8. The gear transmission device for an injection molding machine according to claim 7, characterized in that: The connecting main pipe (403) is provided with two connecting branch pipes (405), and each of the two connecting branch pipes (405) is provided with a plurality of oil spray heads (406).

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