Dual-color high-precision injection mold cleaning device

Abstract

This utility model relates to the technical field of mold cleaning devices, and more particularly to a two-color high-precision injection mold cleaning device. It includes a compressed air tank, a spray gun, and a filter assembly. A pulverizing barrel is located on one side of the compressed air tank, and a spray gun is located on the other side of the pulverizing barrel. A flexible hose is attached to the nozzle of the spray gun, and a wire is attached to one side of the hose. The hose and wire are covered with a plastic outer sheath. An air compressor is located above the compressed air tank, and an air inlet pipe is located on one side of the air compressor. A filter assembly is located inside the air inlet pipe. This utility model uses a high-speed airflow to blow up and carry pulverized dry ice from the pulverizing barrel, which is then sprayed out through the spray gun and hose to clean the mold dirt. When facing complex curved surfaces or deep cavities where the spray gun cannot directly spray air to clean the interior, the hose, wire, and plastic outer sheath can be bent. The presence of the wire helps the hose retain its shape after bending, allowing the high-speed airflow containing dry ice particles to clean the dirt.

Description

Technical Field

[0001] This utility model relates to the technical field of mold cleaning devices, and in particular to a two-color high-precision injection mold cleaning device. Background Technology

[0002] Mold fouling occurs during injection molding of almost all thermoplastics. When the functional requirements of the final product necessitate the inclusion of additives (such as modifiers, flame retardants, etc.), these additives are very likely to remain on the surface of the mold cavity during the molding process, leading to mold fouling. Therefore, mold fouling needs to be cleaned to prevent it from affecting the precision and yield of the injection molded parts.

[0003] Currently, there are several methods for cleaning mold sludge, including manual cleaning, laser cleaning, dry ice cleaning, ultrasonic cleaning, and electrolytic cleaning. Among them, dry ice cleaning is widely used because the finished product is low and the mold does not need to be disassembled during cleaning. The principle of dry ice cleaning is to push dry ice particles with compressed air to impact the surface of the mold, which quickly freezes the dirt, oil, and residual impurities, causing them to solidify, become brittle, and peel off, while being carried away by the airflow.

[0004] Currently, dry ice cleaning machines often use spray guns as spray nozzles. However, the structure of the spray gun is fixed and its volume is relatively large. When dealing with molds with complex curved surfaces and deep cavities, such as two-color high-precision injection molds, it is difficult for the spray gun to spray and clean all the inner surfaces of the mold, resulting in poor cleaning effect. Utility Model Content

[0005] To overcome the problem that most dry ice cleaning machines use spray guns as spray nozzles, but the structure of the spray gun is fixed and the volume is large. When dealing with molds with complex curved surfaces and deep cavities, such as two-color high-precision injection molds, it is difficult for the spray gun to spray and clean the entire inner surface of the mold, resulting in poor cleaning effect.

[0006] The technical solution of this utility model is as follows: a dual-color high-precision injection mold cleaning device, including a compressed air tank, a spray gun, and a filter assembly. A crushing barrel for crushing dry ice is provided on one side of the compressed air tank. A spray gun is provided on one side of the crushing barrel. A flexible hose is provided at the nozzle of the spray gun. An iron wire is provided on one side of the flexible hose to fix the posture of the flexible hose. The flexible hose and the iron wire are covered with a plastic outer skin. An air compressor is provided above the compressed air tank. An air inlet pipe is provided on one side of the air compressor. A filter assembly is provided inside the air inlet pipe. A base is provided at the bottom of the compressed air tank and the crushing barrel. A caster wheel is provided at the bottom of the base. A handle is provided on one side of the base. A control module is provided in the middle of the handle. The control module is provided with control buttons.

[0007] Preferably, a first motor is installed above the crushing barrel, a rotating shaft is installed at the output end of the first motor, and a blade is installed near the bottom of the crushing barrel on the rotating shaft.

[0008] Preferably, a hopper is provided on one side of the crushing barrel, and a cover plate is rotatably connected above the hopper. The cover plate and the hopper are closed and fixed by pressure buckles.

[0009] Preferably, a connecting pipe is provided at the bottom of the crushing barrel, an air supply pipe is provided on one side of the compressed air tank, and a solenoid valve is provided above the air supply pipe.

[0010] Preferably, the filter assembly includes a dust collector bag and a second motor, with a dust collector bag for filtering the intake air disposed inside the intake pipe and a second motor disposed above the intake pipe.

[0011] Preferably, a driven block is provided above the dust collector bag, connecting rods are provided on both sides of the driven block, and a mounting frame is provided above the driven block. The mounting frame is fixedly connected to the inner wall of the air inlet pipe, the connecting rods are slidably connected to the mounting frame, and a spring is provided on the outer side of the connecting rods.

[0012] Preferably, the bottom of the mounting bracket is provided with a rotating block, which is fixedly connected to the output end of the second motor. The bottom of the rotating block is provided with a ball, and a round hole is provided at the connection between the driven block and the ball.

[0013] The beneficial effects of this utility model are:

[0014] By using a compressed air tank to supply compressed air, which is then released as a high-speed airflow, the pulverized dry ice inside the pulverizing tank is blown up and carried out through the spray gun and hose to clean the mold. When dealing with complex curved surfaces or deep cavities where the spray gun cannot directly spray air to clean the interior, the hose, wire, and plastic outer sheath can be bent. The presence of the wire allows the hose to be shaped after bending, enabling it to extend into the mold and allowing the high-speed airflow containing dry ice particles to clean the dirt. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is a three-dimensional structural schematic of the spray gun of this utility model;

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the crushing bucket of this utility model;

[0018] Figure 4 The diagram shown is a three-dimensional structural schematic of the compressed air tank of this utility model;

[0019] Figure 5 The diagram shown is a three-dimensional structural schematic of the air intake pipe of this utility model.

[0020] Figure 6The diagram shown is a three-dimensional structural schematic of the filter component of this utility model.

[0021] Explanation of reference numerals in the attached drawings: 1. Compressed air tank; 101. Air supply pipe; 2. Crushing barrel; 201. First motor; 202. Rotating shaft; 203. Blade; 204. Connecting pipe; 205. Hopper; 206. Cover plate; 3. Spray gun; 301. Hose; 302. Iron wire; 303. Plastic outer skin; 4. Air compressor; 401. Air inlet pipe; 402. Dust collector bag; 403. Second motor; 404. Driven block; 405. Round hole; 406. Connecting rod; 407. Spring; 408. Rotating block; 409. Ball bearing; 410. Mounting bracket; 5. Control module; 501. Control button; 6. Solenoid valve; 7. Base; 701. Handle; 702. Caster wheel. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Please see Figures 1-6 This utility model provides an embodiment of a two-color high-precision injection mold cleaning device, including a compressed air tank 1, a spray gun 3, and a filter assembly. A crushing bucket 2 for crushing dry ice is provided on one side of the compressed air tank 1. A spray gun 3 is provided on one side of the crushing bucket 2. A flexible hose 301 is provided at the nozzle of the spray gun 3. An iron wire 302 is provided on one side of the flexible hose 301 to fix its posture. The flexible hose 301 and the iron wire 302 are covered with a plastic outer skin 303. An air compressor 4 is provided above the compressed air tank 1. An air inlet pipe 401 is provided on one side of the air compressor 4. A filter assembly is provided inside the air inlet pipe 401. A base 7 is provided at the bottom of the compressed air tank 1 and the crushing bucket 2. A caster wheel 702 is provided at the bottom of the base 7. A handle 701 is provided on one side of the upper part of the base 7. A control module 5 is provided in the middle of the handle 701. The control module 5 is equipped with a control button 501; compressed air is provided by the compressed air tank 1 and becomes a high-speed airflow during the release process, which blows up and carries the pulverized dry ice in the pulverizing tank 2, and sprays it out from the spray gun 3 and hose 301 to clean the dirt in the mold. When facing complex curved surfaces or deep cavities, when the spray gun 3 cannot directly spray air to clean the inside, the whole assembly of hose 301, wire 302 and plastic outer skin 303 can be bent. The presence of wire 302 can fix the shape of hose 301 after bending, so that hose 301 can be inserted into the mold and the high-speed airflow containing dry ice particles can clean the dirt.

[0024] Please see Figure 3In this embodiment, a first motor 201 is provided above the crushing barrel 2, and a rotating shaft 202 is provided at the output end of the first motor 201. A blade 203 is provided near the bottom of the crushing barrel 2 on the rotating shaft 202. A hopper 205 is provided on one side of the crushing barrel 2, and a cover plate 206 is rotatably connected above the hopper 205. The cover plate 206 and the hopper 205 are closed and fixed by a pressure snap. A connecting pipe 204 is provided at the bottom of the crushing barrel 2, and an air supply pipe 101 is provided on one side of the compressed air tank 1. A solenoid valve 6 is provided above the air supply pipe 101. In use, dry ice is put into the hopper 205 and the cover plate 206 is closed. The first motor 201 is turned on by the control button 501, which drives the rotating shaft 202 and the blade 203 to rotate and crush the dry ice. Then, the solenoid valve 6 is turned on by the control button 501, so that the compressed air in the compressed air tank 1 can enter the connecting pipe 204 from the air supply pipe 101, carry the dry ice particles and enter the spray gun 3.

[0025] Please see Figures 4-5 In this embodiment, the filter assembly includes a dust collector bag 402 and a second motor 403. A dust collector bag 402 for filtering the intake air is disposed inside the intake pipe 401. The second motor 403 is disposed above the intake pipe 401. A driven block 404 is disposed above the dust collector bag 402. Connecting rods 406 are disposed on both sides of the driven block 404. A mounting bracket 410 is disposed above the driven block 404. The mounting bracket 410 is fixedly connected to the inner wall of the intake pipe 401. The connecting rods 406 are slidably connected to the mounting bracket 410. A spring 407 is disposed on the outer side of the connecting rods 406. A rotating block 408 is disposed at the bottom of the mounting bracket 410. The rotating block 408 is fixedly connected to the output end of the second motor 403. A ball 409 is disposed at the bottom of the rotating block 408. A circular hole 405 is provided at the connection between block 404 and ball 409. When the air compressor 4 compresses air, outside air enters the air intake pipe 401. The dust collector bag 402 filters the intake air to prevent hard particles in the high-speed airflow from damaging the mold. The second motor 403 is turned on by the control button 501 and drives the rotating block 408 to rotate. The driven block 404 can only move up and down under the sliding connection of the connecting rod 406 and the mounting bracket 410 and cannot rotate with the rotating block 408. The spring 407 provides thrust to the connecting rod 406 so that the driven block 404 and the circular hole 405 are always in close contact. The rotating block 408 causes the ball 409 to continuously leave and re-enter the circular hole 405, thereby generating a small-amplitude high-frequency vibration, shaking off the dust attached to the dust collector bag 402 for cleaning.

[0026] In use, dry ice is put into hopper 205 and cover 206 is closed. The first motor 201 is turned on by control button 501, which drives the rotating shaft 202 and blade 203 to rotate and crush the dry ice. Then, the solenoid valve 6 is turned on by control button 501, so that the compressed air in compressed air tank 1 can enter the connecting pipe 204 from the air supply pipe 101, carry the dry ice particles and enter the spray gun 3. The operator controls whether airflow is sprayed by the switch on the spray gun 3. When facing complex curved surfaces or deep cavities, when the spray gun 3 cannot directly spray air to clean the inside, the whole assembly of hose 301, wire 302 and plastic outer skin 303 can be bent. The presence of wire 302 can fix the hose 301 after bending, so that the hose 301 can be inserted into the mold and the high-speed airflow containing dry ice particles can clean the dirt.

[0027] When the air compressor 4 compresses air, outside air enters the intake pipe 401. The dust collector bag 402 filters the intake air to prevent hard particles in the high-speed airflow from damaging the mold. The second motor 403 is turned on by the control button 501 and drives the rotating block 408 to rotate. The driven block 404 can only move up and down under the sliding connection of the connecting rod 406 and the mounting bracket 410 and cannot rotate with the rotating block 408. The spring 407 provides thrust to the connecting rod 406, so that the driven block 404 is always in close contact with the round hole 405. The rotating block 408 causes the round ball 409 to continuously leave and re-enter the round hole 405, thereby generating a small-amplitude high-frequency vibration, shaking off the dust attached to the dust collector bag 402 for cleaning.

[0028] Through the above steps, compressed air is provided by the compressed air tank 1 and becomes a high-speed airflow during the release process. The pulverized dry ice in the pulverizing tank 2 is blown up and carried out from the spray gun 3 and hose 301 to clean the dirt in the mold. When facing complex curved surfaces or deep cavities, when the spray gun 3 cannot directly spray air to clean the inside, the whole assembly of hose 301, wire 302 and plastic outer skin 303 can be bent. The presence of wire 302 can fix the shape of hose 301 after bending, so that hose 301 can be inserted into the mold and the high-speed airflow containing dry ice particles can clean the dirt.

Claims

1. A two-color high-precision injection mold cleaning device, comprising a compressed gas tank (1); characterized in that: It also includes a spray gun (3) and a filter assembly, and a crushing bucket (2) for crushing dry ice is provided on one side of the compressed air tank (1). A spray gun (3) is provided on one side of the crushing barrel (2). A hose (301) is provided at the nozzle of the spray gun (3). A wire (302) is provided on one side of the hose (301) to fix the posture of the hose (301). The hose (301) and the wire (302) are covered with a plastic outer skin (303). An air compressor (4) is provided above the compressed air tank (1). An air inlet pipe (401) is provided on one side of the air compressor (4). A filter assembly is provided on the inner side of the air inlet pipe (401). A base (7) is provided at the bottom of the compressed air tank (1) and the crushing barrel (2). A caster wheel (702) is provided at the bottom of the base (7). A handle (701) is provided on one side of the base (7). A control module (5) is provided in the middle of the handle (701). A control button (501) is provided in the control module (5).

2. The dual-color high-precision injection mold cleaning device according to claim 1, characterized in that: A first motor (201) is provided above the crushing barrel (2), and a rotating shaft (202) is provided at the output end of the first motor (201). A blade (203) is provided near the bottom of the crushing barrel (2).

3. The dual color high precision injection mold cleaning device according to claim 1, wherein: A hopper (205) is provided on one side of the crushing barrel (2), and a cover plate (206) is rotatably connected above the hopper (205). The cover plate (206) and the hopper (205) are closed and fixed by pressure buckle.

4. The dual color high precision injection mold cleaning device of claim 1, wherein: A connecting pipe (204) is provided at the bottom of the crushing barrel (2), and an air supply pipe (101) is provided on one side of the compressed air tank (1). A solenoid valve (6) is provided above the air supply pipe (101).

5. The dual color high precision injection mold cleaning device of claim 1, wherein: The filter assembly includes a dust collector bag (402) and a second motor (403). The inner side of the air inlet pipe (401) is provided with a dust collector bag (402) for filtering the air inlet. The second motor (403) is provided above the air inlet pipe (401).

6. The dual-color high-precision injection mold cleaning device according to claim 5, characterized in that: A driven block (404) is provided above the dust collector bag (402), and connecting rods (406) are provided on both sides of the driven block (404). A mounting bracket (410) is provided above the driven block (404). The mounting bracket (410) is fixedly connected to the inner wall of the air inlet pipe (401). The connecting rods (406) are slidably connected to the mounting bracket (410). A spring (407) is provided on the outer side of the connecting rods (406).

7. The dual color high precision injection mold cleaning device of claim 6, wherein: The bottom of the mounting bracket (410) is provided with a rotating block (408), which is fixedly connected to the output end of the second motor (403). The bottom of the rotating block (408) is provided with a ball (409), and a round hole (405) is provided at the connection between the driven block (404) and the ball (409).

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