Heating and shunting device of injection molding machine

Abstract

The utility model relates to the technical field of injection molding, in particular to a heating and shunting device of an injection molding machine, which comprises a cylinder, a rotating mechanism is arranged in a shell, and discharge pipes are symmetrically and fixedly communicated with the lower end of the inner wall of the cylinder. According to the heating and shunting device of the injection molding machine, through cooperation of the positioning mechanism and the cylinder, a filter screen is matched with a threaded hole machined in a circular ring, so that positioning of the threaded hole is achieved, the time of workers is saved through positioning of the threaded hole by the positioning mechanism, and therefore the working efficiency is improved; the scraping plate rotates to scrape off most residual injection molding liquid on the inner wall of the cylinder, then hot water is discharged from the discharging pipe, the residual liquid needs to be manually cleaned by workers so as to achieve cleaning of the cylinder, most of the residual liquid can be cleaned up through cooperation of the scraping plate and the hot water, and the working efficiency is improved. And excessive work of workers is reduced, so that the physical strength of the workers is saved, and the manual labor force is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection molding technical field, concretely to a kind of injection molding machine heating shunt device. BACKGROUND

[0002] Injection molding machine is also named injection molding machine or injection machine, it is the main molding equipment of thermoplastic or thermosetting plastic into various shapes of plastic products using plastic molding mold. It is divided into vertical, horizontal, all-electric, injection molding machine can heat plastic, melt plastic is applied high pressure, so that it fills mold cavity.

[0003] For example, the announcement number is "CN218803806U" a kind of injection molding machine injection molding shunt device, the utility model in use, avoid the pipe because of the accumulation of plastic particles appears the situation of blockage, it is easy to disassemble and maintain simultaneously, improve the practicability of structure;Electric push rod is used to drive rotating rod rotation, rotating rod drives shaft, shaft drives deflector overturning, so that injection liquid can be selected one of circular through opening and flow into discharge pipe, so as to facilitate staff to control the shunt direction of injection liquid, convenient operation and save manpower and time.But the injection molding machine injection molding shunt device, need to twist multiple bolts to complete the fixation of filter screen, threaded hole is not easy to position, once not accurate positioning is not easy to screw bolt, it is more troublesome, consume staff's time, thereby reduce work efficiency, and the injection molding machine injection molding shunt device, only by pouring hot water to clean inner wall, it is not easy to clean injection liquid adhered to inner wall, still need staff to clean manually, consume staff's more physical strength, thereby increase manual labor. UTILITY MODEL CONTENT

[0004] The utility model aims at solving the injection molding machine injection molding shunt device, need to twist multiple bolts to complete the fixation of filter screen, threaded hole is not easy to position, once not accurate positioning is not easy to screw bolt, it is more troublesome, consume staff's time, thereby reduce work efficiency, and the injection molding machine injection molding shunt device, only by pouring hot water to clean inner wall, it is not easy to clean injection liquid adhered to inner wall, still need staff to clean manually, consume staff's more physical strength, thereby increase manual labor, and propose a kind of injection molding machine heating shunt device.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] Design a kind of injection molding machine heating shunt device, including cylinder, the outer wall of the cylinder is equipped with heating jacket, the upper end of the cylinder is fixedly connected with feed pipe, the inner wall of the feed pipe is equipped with positioning mechanism, the outer wall lower end of the cylinder is fixedly connected with shell, the inside of the shell is equipped with rotating mechanism, the inner wall lower end of the cylinder is fixedly connected with discharge pipe.

[0007] Preferably, the inner wall of the cylinder is attached to the scraper, and the lower end of the inner wall of the cylinder is attached to the rotating disc.

[0008] Preferably, the positioning mechanism comprises a filter screen, spring symmetrically fixedly connected to the inner wall of the filter screen, positioning rods fixedly connected to the lower ends of the springs, the inner walls of the positioning rods being slidably connected to two slide rods, the two ends of the slide rods being fixedly connected to the filter screen, the filter screen being fixedly connected to a circular ring through bolts, the inner wall of the circular ring being symmetrically processed with positioning holes, and the positioning rods being inserted into the positioning holes.

[0009] Preferably, the outer wall of the filter screen is attached to the inner wall of the cylinder, and the outer wall of the circular ring is fixedly connected to the cylinder.

[0010] Preferably, the rotating mechanism comprises a servo motor, a first helical gear fixedly connected to the output shaft of the servo motor, a second helical gear meshing with the first helical gear, a rotating shaft of the second helical gear rotatably connected to a rotating shaft of a third helical gear through a bearing, the rotating shaft of the third helical gear rotatably connected to the shell through a bearing, the rotating shaft of the second helical gear rotatably connected to the shell through a bearing, the output shaft of the servo motor rotatably connected to a sliding block through a bearing, and the outer wall of the sliding block slidably connected to the shell.

[0011] Preferably, the rotating shaft of the second helical gear is fixedly connected with a scraper, and the rotating shaft of the third helical gear is fixedly connected with a rotating disc.

[0012] The injection molding machine heating and shunting device has the beneficial effects that: through the cooperation of the positioning mechanism and the cylinder, the filter screen can be pressed downward to compress the spring and drive the positioning rods to move upward, the positioning rods are more stable in limited movement by the slide rods, then the filter screen is rotated, the lower end of the positioning rod is arc-shaped, which is more convenient for movement, when the positioning rod enters the range of the positioning hole, the upper end of the positioning hole is funnel-shaped, which can guide the positioning rod into the positioning hole, when the positioning rod reaches directly above the positioning hole, the spring rebounds to make the positioning rod move downward and be clamped in the positioning hole, at this time, the filter screen and the threaded hole of the circular ring are matched, so as to realize the positioning of the threaded hole, through the positioning of the threaded hole by the positioning mechanism, the staff is more convenient when screwing the bolt, and the situation that the filter screen moves when being screwed does not occur, the staff's time is saved, and the work efficiency is improved.

[0013] Through the cooperation of the rotating mechanism and the scraper, the output shaft of the servo motor rotates, driving the first helical gear to rotate, which in turn drives the second helical gear to rotate. The rotation of the second helical gear drives the scraper to rotate, and the scraper scrapes off most of the residual injection liquid on the inner wall of the cylinder. Then, it is discharged from the discharge pipe through hot water. The remainder needs to be cleaned manually by the staff to clean the cylinder. Through the cooperation of the scraper and hot water, most of the liquid can be cleaned, reducing the workload of the staff and saving their physical strength, thus reducing the labor force. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 A front sectional view;

[0016] Figure 3 for Figure 1 Top sectional view;

[0017] Figure 4 This is a top view of the filter screen;

[0018] Figure 5 for Figure 2 A schematic diagram of the structure of part A;

[0019] Figure 6 This is a top view of the annulus;

[0020] Figure 7 for Figure 2 A structural diagram of section B;

[0021] Figure 8 for Figure 1 A structural diagram of part C.

[0022] In the diagram: 1. Cylinder, 2. Heating jacket, 3. Feed pipe, 4. Positioning mechanism, 401. Filter screen, 402. Ring, 403. Positioning hole, 404. Positioning rod, 405. Spring, 406. Slide rod, 5. Outer shell, 6. Rotating mechanism, 601. Servo motor, 602. First helical gear, 603. Second helical gear, 604. Third helical gear, 605. Slider, 7. Discharge pipe, 8. Turntable, 9. Scraper. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings:

[0024] See attached document Figures 1-8 :

[0025] The embodiment is a kind of injection molding machine heating shunt device, including cylinder 1, the outer wall of cylinder 1 is equipped with heating jacket 2, heating jacket 2 heats cylinder 1, prevents injection liquid to condense into block, the upper end of cylinder 1 is fixedly connected with feed pipe 3, the inner wall of feed pipe 3 is equipped with positioning mechanism 4, the outer wall of cylinder 1 is fixedly connected with shell 5, the inside of shell 5 is equipped with rotating mechanism 6, the inner wall of cylinder 1 is fixedly connected with discharge pipe 7 in lower end symmetry, the inner wall of cylinder 1 is attached with scraper 9, scraper 9 can scrape the fixed solution of cylinder 1 inner wall, the inner wall of cylinder 1 is attached with rotating disc 8 in lower end, rotating disc 8 is semicircle rotating center and the same as the center of cylinder 1, the rotation of rotating disc 8 controls which discharge pipe 7 discharges, and rotating disc 8 has gradient, injection liquid falling on rotating disc 8 will flow to discharge pipe 7.

[0026] Refer to the attached drawings Figures 1-2 And 4-6:

[0027] Positioning mechanism 4, positioning mechanism 4 includes filter screen 401, setting filter screen 401 will be completely melted in the solid of injection liquid intercept, the inner wall of filter screen 401 is fixedly connected with spring 405 in symmetry, the lower end of spring 405 is fixedly connected with positioning rod 404, the inner wall of positioning rod 404 is slidably connected with two slide rods 406, slide rod 406 is positioned to positioning rod 404, the two ends of slide rod 406 are fixedly connected with filter screen 401, filter screen 401 is fixedly connected with circular ring 402 by bolt, the inner wall of circular ring 402 is symmetrically processed with positioning hole 403, the hole of bolt is smaller than positioning hole 403, positioning rod 404 will not enter wrong hole, the outer surface of positioning hole 403 is funnel-shaped, more easily make positioning rod 404 enter positioning hole 403, positioning rod 404 is inserted with positioning hole 404, filter screen 401 can be compressed to drive positioning rod 404 to move upwards by pressing, when positioning rod 404 enters positioning hole 403, spring 405 rebounds and makes positioning rod 404 be clamped in positioning hole 403, the outer wall of filter screen 401 is attached with the inner wall of cylinder 1, the outer wall of circular ring 402 is fixedly connected with cylinder 1.

[0028] Refer to the attached drawings Figures 1-2 And 7-8:

[0029] Rotating mechanism 6 includes servo motor 601, the output shaft of servo motor 601 is fixedly connected with first helical gear 602, first helical gear 602 is engaged with second helical gear 603, first helical gear 602 drives second helical gear 603 to rotate, the rotating shaft of second helical gear 603 is rotatably connected with the rotating shaft of third helical gear 604 through bearing, the rotating shaft of third helical gear 604 is rotatably connected with shell 5 through bearing, the outer wall of shell 5 is processed with four threaded holes, the rotating shaft of second helical gear 602 is rotatably connected with shell 5 through bearing, the output shaft of servo motor 601 is rotatably connected with sliding block 605 through bearing;

[0030] Lifting the servo motor 601 upward, the servo motor 601 moves upward to drive the sliding block 605 to move upward, thereby driving the first bevel gear 602 to move upward, when the sliding block 605 moves to the maximum distance, the first bevel gear 602 meshes with the third bevel gear 604, the output shaft of the servo motor 601 can drive the fourth bevel gear 604 to rotate, the outer wall of the sliding block 605 is processed with two threaded holes, which can be matched with the threaded holes processed on the two sides of the shell 5, when the sliding block 605 moves to the top, it is also matched with the threaded holes of the shell 5, the outer wall of the sliding block 605 is in sliding connection with the shell 5, the rotating shaft of the second bevel gear 602 is fixedly connected with the scraper 9, the rotation of the second bevel gear 602 drives the scraper 9 to rotate, the rotating shaft of the third bevel gear 604 is fixedly connected with the rotating disc 8, the rotation of the third bevel gear 604 drives the rotating disc 8 to rotate.

[0031] Working principle:

[0032] When the workpiece is injection molded, the discharging time of different shunt pipes needs to be controlled.

[0033] Preparation work:

[0034] The worker first presses the filter screen 401 on the ring 402 and presses it downward (as shown in Figure 5 ), pressing the filter screen 401 can compress the spring 405 to drive the positioning rod 404 to move upward, and the positioning rod 404 moves more stably under the limiting of the sliding rod 406, then rotate the filter screen 401, because the lower end of the positioning rod 404 is arc-shaped, it is more convenient to move, when the positioning rod 404 enters the range of the positioning hole 403, because the upper end of the positioning hole 403 is funnel-shaped, it can guide the positioning rod 404 into the positioning hole 403, when the positioning rod 404 reaches directly above the positioning hole 403, the spring 405 rebounds to make the positioning rod 404 move downward and be clamped in the positioning hole 403;

[0035] Compared with positioning using a positioning pin, it is faster and does not need to press downward after finding the position of the hole as when using a positioning pin. Using this positioning device 4, only need to press downward and rotate the filter screen 401, as long as it passes through the positioning hole 403, the positioning rod 404 can quickly enter the positioning hole 403 according to the rebound of the spring 405, and the positioning rod 404 is equivalent to adding a horizontal rotation limiting to the filter screen 401, avoiding the shaking of the filter screen 401, at this time, the filter screen 401 and the threaded hole processed on the ring 402 are matched, realizing the positioning of the threaded hole, then the worker can fix the filter screen 401 on the ring 402 through the bolt, then connect the feed pipe 3 to the discharge port of the injection molding machine through the flange, then connect the pipes to the two discharge pipes 7 respectively to guide the shunted injection liquid to the injection molded parts.

[0036] Shunting working process:

[0037] At this time the first helical gear 602 and the second helical gear 603 are engaged (as shown in Figure 7 ), the staff unscrews the bolt on the shell 5, then pushes the servo motor 601 upwards, the servo motor 601 moves upwards due to the limit of the sliding block 606, thereby driving the first helical gear 602 to move upwards, when the sliding block 606 moves to the maximum distance, the first helical gear 602 engages with the third helical gear 604, at this time, screwing the bolt into the two holes on the upper side of the shell 5 can fix the sliding block 606, then start the injection molding machine, and pour the injection liquid into the cylinder 1, when it is necessary to replace the discharge pipe 7, start the heating jacket 2, the heating jacket 2 prevents the liquid from solidifying, then start the servo motor 601, the output shaft of the servo motor 601 rotates to drive the third helical gear 604 to rotate, the third helical gear 604 rotates to drive the rotating disc 8 to rotate, when the rotating disc 8 rotates by one hundred and eighty degrees, the rotating disc 8 covers the right side discharge pipe 7 and leaks out the left side discharge pipe 7, at this time, the servo motor 601 is closed, the servo motor 601 has self-locking, preventing the rotating disc 8 from continuing to rotate, realizing the discharge state of replacing the discharge pipe 7 on both sides, after completing all, the injection molding machine is closed, the staff takes off the feed pipe 3 from the injection molding machine, and then takes off the guide pipe on the discharge pipe 7, completing the injection molding and shunting.

[0038] Cleaning process:

[0039] The staff first removes the filter screen 401 and throws away the garbage on it (as shown in Figure 1 ), then connects the hot water pipe to the feed pipe 3, unscrews the bolt on the sliding block 605, the two side outer walls of the sliding block 605 are processed with two threaded holes, which can be matched with the threaded holes processed on the two sides of the shell 5, moves the servo motor 601 downwards, the working principle is opposite to the above, so that the first helical gear 602 engages with the second helical gear 603 (if the engagement tooth position does not correspond, the engagement tooth angle of the first helical gear 602 can be adjusted through the servo motor 601, so that it is ensured that the first helical gear 602 engages with the second helical gear 603 after moving), then re-tighten the bolts of the two holes on the lower side, then open the hot water to flush the cylinder 1, when flushing, start the servo motor 601, the output shaft of the servo motor 601 rotates to drive the first helical gear 602 to rotate, thereby driving the second helical gear 603 to rotate, the second helical gear 603 rotates to drive the scraper 9 to rotate, the scraper 9 rotates to scrape most of the residual injection liquid on the inner wall of the cylinder 1, then the remaining injection liquid is discharged from the discharge pipe 7 through the hot water, the remaining injection liquid needs to be manually cleaned by the staff, after cleaning, the servo motor and the heating jacket 2 are closed, and the bearings are all selected to be sealed bearings to ensure sealing and prevent water leakage.

[0040] Although the utility model has been illustrated and described by referring to the preferred embodiments, it should be understood by those skilled in the art that various changes in form and details can be made within the scope of the claims.

Claims

1. A heating and diversion device for an injection molding machine, comprising a cylinder (1), characterized in that: A heating sleeve (2) is installed on the outer wall of the cylinder (1). A feed pipe (3) is fixedly connected to the upper end of the cylinder (1). A positioning mechanism (4) is provided on the inner wall of the feed pipe (3). A shell (5) is fixedly connected to the lower end of the outer wall of the cylinder (1). A rotating mechanism (6) is provided inside the shell (5). A discharge pipe (7) is symmetrically fixedly connected to the lower end of the inner wall of the cylinder (1). The positioning mechanism (4) includes a filter screen (401). Springs (405) are symmetrically fixedly connected to the inner wall of the filter screen (401). A positioning rod (404) is fixedly connected to the lower end of each spring (405). The inner wall of each positioning rod (404) is slidably connected to two sliding rods (406). Both ends of each sliding rod (406) are fixedly connected to the filter screen (401). The filter screen (401) is fixedly connected to a ring (402) by bolts. The inner wall of the ring (402) is symmetrically machined with positioning holes (403). The positioning rod (404) is inserted into the positioning hole (403). The outer wall of the filter screen (401) is attached to the inner wall of the cylinder (1), and the outer wall of the ring (402) is fixedly connected to the cylinder (1); The rotating mechanism (6) includes a servo motor (601), the output shaft of which is fixedly connected to a first helical gear (602). The first helical gear (602) meshes with a second helical gear (603). The rotating shaft of the second helical gear (603) is rotatably connected to the rotating shaft of a third helical gear (604) through a bearing. The rotating shaft of the third helical gear (604) is rotatably connected to the outer shell (5) through a bearing. The rotating shaft of the second helical gear (603) is rotatably connected to the outer shell (5) through a bearing. The output shaft of the servo motor (601) is rotatably connected to a slider (605) through a bearing. The outer wall of the slider (605) is slidably connected to the outer shell (5). The rotating shaft of the second helical gear (603) is fixedly connected to a scraper (9), and the rotating shaft of the third helical gear (604) is fixedly connected to a turntable (8).

2. The injection molding machine heating and diversion device according to claim 1, characterized in that: The inner wall of the cylinder (1) is in contact with the scraper (9), and the lower end of the inner wall of the cylinder (1) is in contact with the turntable (8).

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