Injection molding part water gap cutting machine

Abstract

The utility model discloses an injection molding part water gap cutting machine which comprises a water gap cutting machine platform, a water gap cutting mechanism and a polishing mechanism, wherein the water gap cutting mechanism and the polishing mechanism are positioned above the water gap cutting machine platform; the water gap cutting-off mechanism comprises a water gap cutting-off bin, a cutting-off ring is installed at the bottom of the interior of the water gap cutting-off bin, the interior of the cutting-off ring is connected with a cutting-off blade through a connecting rod, a gear ring is arranged on one side of the exterior of the cutting-off ring, one side of the gear ring is meshed with a gear, and a gear motor is installed at the bottom of the gear. The water gap cutting mechanism has the beneficial effects that the water gap cutting mechanism is arranged, a gear motor is started to drive a gear to rotate, and then a gear ring and a cutting ring are driven to rotate, so that a connecting rod is driven to rotate, and a cutting blade can rotate inwards to cut a water gap of a machined injection part; the shearing force around the water gap is more uniform, and the problem that the water gap is not cut thoroughly is avoided.

Description

Technical Field

[0001] The utility model relates to the field of nozzle cutting machines, in particular to a nozzle cutting machine for injection molded parts. Background Art

[0002] In the manufacturing process, many workpieces are made by casting or injection molding. After the workpieces are formed by casting or injection molding, there will be residual sprues. In the subsequent processing of the workpiece, the sprues are cut off and polished smooth to facilitate subsequent parts processing. Therefore, a sprue cutting device is needed.

[0003] A Chinese utility model (Announcement No.: CN218803760U) discloses a nozzle cutting machine for injection molding, including a machine base, and also including: a cutting structure connected to the machine base, the cutting structure including a mobile driving structure connected to the machine base, the mobile driving structure connected to a rotating cutting structure, the rotating cutting structure is slidably connected to the machine base through a slide groove, the slide groove is provided on one side of the machine base; a pipe fixing seat fixedly connected to the machine base; and an anti-rotation structure installed in the pipe fixing seat. The rotating cutting structure moves along the surface of the pipe fitting and completely removes the nozzle on the pipe fitting. During this period, the anti-rotation structure limits the pipe fitting, so that the pipe fitting mounted on the pipe fixing seat does not move with the rotating cutting structure, so that the utility model can completely and conveniently cut the nozzle on the outer wall of the pipe fitting.

[0004] In the process of realizing the utility model, there are at least the following problems in this technology. The above-mentioned patent moves along the surface of the pipe fitting by rotating the cutting structure and comprehensively removes the sprue on the pipe fitting. However, after cutting off the sprue, there will still be burrs and uneven processing problems that require subsequent grinding. If a grinder is used for separate grinding, the product may be repeatedly taken and placed, which may easily cause scratches, abrasions and other defects, resulting in an increase in the defective rate, thereby increasing production costs. Therefore, a sprue cutting machine for injection molded parts is now proposed. Utility Model Content

[0005] In order to improve the problem that burrs and uneven processing still exist after the nozzle is cut off and subsequent grinding treatment is required, the utility model provides an injection molding nozzle cutting machine.

[0006] The utility model provides a nozzle cutting machine for injection molded parts, which adopts the following technical solutions:

[0007] A nozzle cutting machine for injection molding parts, comprising a nozzle cutting machine platform, and a nozzle cutting mechanism and a grinding mechanism located above the nozzle cutting machine platform;

[0008] The nozzle cutting mechanism comprises a nozzle cutting chamber, a cutting ring is installed at the inner bottom of the nozzle cutting chamber, a cutting blade is connected to the inner part of the cutting ring through a connecting rod, a gear ring is arranged on one side of the outer part of the cutting ring, a gear is meshed on one side of the gear ring, and a gear motor is installed at the bottom of the gear;

[0009] The grinding mechanism includes a second hydraulic cylinder, which is fixedly installed on the top of the sprue cutting bin, and a grinding disc motor is fixedly installed on the output end of the second hydraulic cylinder, and a grinding disc body is fixedly installed on the output end of the grinding disc motor.

[0010] By adopting the above technical solution, the provision of a nozzle cutting mechanism and a grinding mechanism can help improve the convenience of nozzle cutting of finished injection molded parts and the efficiency of injection molded parts processing.

[0011] As a further solution of the utility model, guide rods are fixed to the four top corners of the water outlet cutting machine platform, a top plate is fixedly installed on the top of the guide rods, a first hydraulic cylinder is fixedly installed on the top of the top plate, and a lifting plate is fixedly connected to the output end of the first hydraulic cylinder.

[0012] By adopting the above technical solution, the first hydraulic cylinder is started to extend its output end to drive the lifting plate and the water inlet cutting chamber to move downward in the horizontal direction of the guide rod.

[0013] As a further solution of the utility model, the bottom of the lifting plate is fixedly connected to the top outer wall of the sprue cutting chamber.

[0014] By adopting the above technical solution, compared with the existing scissor-type cutting method, the shear force around the water nozzle is more uniform.

[0015] As a further solution of the utility model, a guide groove is provided on the surface of the water nozzle cutting machine platform.

[0016] By adopting the above technical solution, the guide groove can play a guiding role.

[0017] As a further solution of the utility model, a motor is fixedly installed inside the water outlet cutting machine platform, a screw rod is fixedly installed at the output end of the motor, and a guide assembly seat is threadedly connected to the surface of the screw rod.

[0018] By adopting the above technical solution, the starting motor drives the screw to rotate, thereby driving the guide assembly seat and the injection molded part placement plate to move horizontally along the guide groove to the bottom of the sprue cutting chamber.

[0019] As a further solution of the utility model, an injection molded part placement plate is installed on the top of the guide assembly seat.

[0020] By adopting the above technical solution, the injection molded parts placement plate is used to place and process the injection molded parts.

[0021] As a further solution of the utility model, a bidirectional screw is installed inside the injection molding placement plate through a bidirectional screw motor, and the output end of the bidirectional screw motor is fixedly connected to one end of the bidirectional screw, and sliders are threadedly connected at both ends of the bidirectional screw, and a fixing plate is fixed on the top of the slider.

[0022] By adopting the above technical solution, the bidirectional screw motor is started to drive the bidirectional screw to rotate, thereby driving the slider and the fixed plate to move inward to limit and fix the processed injection molded parts.

[0023] In summary, the utility model has the following beneficial effects:

[0024] 1. The utility model sets up a nozzle cutting mechanism, starts the gear motor to drive the gear to rotate, and then drives the gear ring and the cutting ring to rotate, thereby driving the connecting rod to rotate, so that the cutting blade can rotate inward to cut the nozzle of the processed injection molded part. Compared with the existing scissor-type cutting method, this setting has a more uniform shear force around the nozzle, avoiding the problem of incomplete nozzle cutting;

[0025] 2. The utility model sets a grinding mechanism, starts the second hydraulic cylinder to extend its output end with a grinding disc motor and a grinding disc body close to the sprue cut-off position, then starts the grinding disc motor to drive the grinding disc body to rotate, and the surface of the processed injection molded part can be polished. This setting can avoid burrs on the surface of the processed injection molded part and improve the overall aesthetics of the processed injection molded part. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a main structural schematic diagram of the utility model.

[0027] Figure 2 It is a schematic diagram of the internal structure of the platform of the water nozzle cutting machine of the utility model.

[0028] Figure 3 It is a schematic diagram of the internal structure of the water nozzle cutout of the utility model.

[0029] Figure 4 It is a structural schematic diagram of the water nozzle cutting mechanism of the utility model.

[0030] Description of reference numerals:

[0031] 1. Water inlet cutting machine platform; 2. Guide rod; 3. Lifting plate; 4. Water inlet cutting mechanism; 401. Water inlet cutting chamber; 402. Cutting ring; 403. Gear; 404. Connecting rod; 405. Cutting blade; 406. Gear ring; 5. Grinding mechanism; 501. Second hydraulic cylinder; 502. Grinding disc motor; 503. Grinding disc body; 6. Top plate; 7. First hydraulic cylinder; 8. Guide groove; 9. Bidirectional screw; 10. Fixed plate; 11. Injection molded parts placement plate; 12. Motor; 13. Guide assembly seat; 14. Screw. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-Figure 4 This application is described in further detail.

[0033] Please refer to Figure 1-Figure 4 A nozzle cutting machine for injection molded parts comprises a nozzle cutting machine platform 1, and a nozzle cutting mechanism 4 and a grinding mechanism 5 located above the nozzle cutting machine platform 1, guide rods 2 are fixed at the four corners of the top of the nozzle cutting machine platform 1, a top plate 6 is fixedly installed on the top of the guide rod 2, a first hydraulic cylinder 7 is fixedly installed on the top of the top plate 6, and a lifting plate 3 is fixedly connected to the output end of the first hydraulic cylinder 7, a guide groove 8 is opened on the surface of the nozzle cutting machine platform 1, a motor 12 is fixedly installed inside the nozzle cutting machine platform 1, a screw rod 14 is fixedly installed on the output end of the motor 12, a guide assembly seat 13 is threadedly connected to the surface of the screw rod 14, an injection molded part placement plate 11 is installed on the top of the guide assembly seat 13, a bidirectional screw rod 9 is installed inside the injection molded part placement plate 11 through a bidirectional screw motor, and the output end of the bidirectional screw motor is fixedly connected to one end of the bidirectional screw rod 9, both ends of the bidirectional screw rod 9 are threadedly connected to sliders, and a fixed plate 10 is fixed on the top of the slider.

[0034] Reference Figure 1 and Figure 4 The nozzle cutting mechanism 4 includes a nozzle cutting chamber 401, a cutting ring 402 is installed at the bottom of the nozzle cutting chamber 401, and a cutting blade 405 is connected to the inside of the cutting ring 402 through a connecting rod 404. The two ends of the cutting blade 404 are respectively hinged to the cutting ring 402 and the cutting blade 405, and the other end of the cutting blade 405 is hinged to the nozzle cutting chamber 401. A toothed ring 406 is arranged on one side of the cutting ring 402, and a gear 403 is meshed on one side of the geared ring 406. The bottom of the gear 403 A gear motor is installed, and the bottom of the lifting plate 3 is fixedly connected to the top outer wall of the sprue cutting chamber 401; through the sprue cutting mechanism 4, the gear motor is started to drive the gear 403 to rotate, and then the gear ring 406 and the cutting ring 402 are driven to rotate, thereby driving the connecting rod 404 to rotate, so that the cutting blade 405 can be rotated inward to perform sprue cutting on the processed injection molded parts. Compared with the existing scissors-type cutting method, this setting makes the shear force around the sprue more uniform, avoiding the problem of incomplete sprue cutting.

[0035] Reference Figure 1 and Figure 3 The grinding mechanism 5 includes a second hydraulic cylinder 501, which is fixedly installed on the top of the nozzle cutting chamber 401, and a grinding disc motor 502 is fixedly installed on the output end of the second hydraulic cylinder 501, and a grinding disc body 503 is fixedly installed on the output end of the grinding disc motor 502; through the setting of the grinding mechanism 5, the second hydraulic cylinder 501 is started to make its output end extend with the grinding disc motor 502 and the grinding disc body 503 close to the nozzle cutting position, and then the grinding disc motor 502 is started to drive the grinding disc body 503 to rotate, so that the surface of the processed injection molded part can be polished. This setting can avoid burrs on the surface of the processed injection molded part and improve the overall aesthetics of the processed injection molded part.

[0036] The implementation principle of the utility model is as follows: when using the injection molding part water outlet cutting machine, the processed injection molding part can be placed above the injection molding part placement plate 11, and the bidirectional screw motor is started to drive the bidirectional screw 9 to rotate, thereby driving the slider and the fixing plate 10 to move inward to limit and fix the processed injection molding part, and then the motor 12 is started to drive the screw 14 to rotate, thereby driving the guide assembly seat 13 and the injection molding part placement plate 11 to move horizontally along the guide groove 8 to the bottom of the water outlet cutting bin 401; then the first hydraulic cylinder 7 is started to extend its output end to drive the lifting plate 3 and the water outlet cutting bin 401 to move downward horizontally along the guide rod 2, and through the set water outlet cutting mechanism 4, the gear motor is started to drive the gear 403 to rotate, thereby driving the gear ring 406 and the cutting ring 402 to rotate, thereby driving the connecting rod 404 to rotate, and the cutting blade 405 can be rotated inward to fix the injection molding part. The nozzle of the processed injection molded part is cut off. Compared with the existing scissor-type cutting method, the shear force around the nozzle is more uniform, which avoids the problem of incomplete nozzle cutting; after the nozzle is cut off, the cutting blade 405 is opened, and the grinding mechanism 5 is set to start the second hydraulic cylinder 501 so that its output end extends out with the grinding disc motor 502 and the grinding disc body 503 close to the nozzle cut-off place, and then the grinding disc motor 502 is started to drive the grinding disc body 503 to rotate, so that the surface of the processed injection molded part can be polished. This setting can avoid burrs on the surface of the processed injection molded part and improve the overall aesthetics of the processed injection molded part; the nozzle cutting mechanism 4 and the grinding mechanism 5 are set, which helps to improve the convenience of cutting off the nozzle of the finished injection molded part and the efficiency of processing the injection molded part; after the cutting and grinding are completed, the injection molded part placement plate 11 will return to its original position.

[0037] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A nozzle cutting machine for injection molded parts, characterized in that: It comprises a sprue cutting machine platform (1), and a sprue cutting mechanism (4) and a grinding mechanism (5) located above the sprue cutting machine platform (1); The nozzle cutting mechanism (4) comprises a nozzle cutting chamber (401), a cutting ring (402) is installed at the bottom of the nozzle cutting chamber (401), the inside of the cutting ring (402) is connected to a cutting blade (405) via a connecting rod (404), a gear ring (406) is arranged on one side of the outside of the cutting ring (402), a gear (403) is meshed on one side of the gear ring (406), and a gear motor is installed at the bottom of the gear (403); The grinding mechanism (5) comprises a second hydraulic cylinder (501), the second hydraulic cylinder (501) is fixedly mounted on the top of the nozzle cutting chamber (401), a grinding disc motor (502) is fixedly mounted on the output end of the second hydraulic cylinder (501), and a grinding disc body (503) is fixedly mounted on the output end of the grinding disc motor (502).

2. The injection molding part nozzle cutting machine according to claim 1, characterized in that: Guide rods (2) are fixed to the four corners of the top of the water outlet cutting machine platform (1), a top plate (6) is fixedly installed on the top of the guide rods (2), a first hydraulic cylinder (7) is fixedly installed on the top of the top plate (6), and the output end of the first hydraulic cylinder (7) is fixedly connected to a lifting plate (3).

3. The injection molding part nozzle cutting machine according to claim 2, characterized in that: The bottom of the lifting plate (3) is fixedly connected to the top outer wall of the sprue cutting chamber (401).

4. The injection molding part nozzle cutting machine according to claim 1, characterized in that: A guide groove (8) is provided on the surface of the nozzle cutting machine platform (1).

5. The injection molding part nozzle cutting machine according to claim 1, characterized in that: A motor (12) is fixedly mounted inside the sprue removal machine platform (1), a screw rod (14) is fixedly mounted on the output end of the motor (12), and a guide assembly seat (13) is threadedly connected to the surface of the screw rod (14).

6. The injection molding part nozzle cutting machine according to claim 5, characterized in that: An injection molded part placement plate (11) is installed on the top of the guide assembly seat (13).

7. The injection molding part nozzle cutting machine according to claim 6, characterized in that: A bidirectional screw (9) is installed inside the injection molded part placement plate (11) via a bidirectional screw motor, and the output end of the bidirectional screw motor is fixedly connected to one end of the bidirectional screw (9), and sliders are threadedly connected to both ends of the bidirectional screw, and a fixing plate (10) is fixed to the top of the slider.

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