An automatic suction device

Abstract

The utility model discloses an automatic suction material machine, including blanking cylinder, dust prevention mechanism and collection mechanism, blanking cylinder: its right side places base, and the upper end of base is provided with negative pressure chamber, and the upper end of negative pressure chamber is linked with the upper end of blanking cylinder through connecting pipeline no.

Description

Technical Field

[0001] This utility model relates to the field of injection molding machine feeding technology, specifically an automatic feeding machine. Background Technology

[0002] Injection molding is a popular manufacturing method for producing precision parts or products. It involves both plastics and metals and is suitable for a wide range of applications. The process involves melting raw materials and injecting them into a mold, which then cools and solidifies into the final part. Once the mold is created, parts with consistent quality and precision can be mass-produced. The injection molding machine is a key component in the plastic injection molding process. It consists of a barrel that stores molten plastic and a plunger that injects the plastic material into the mold.

[0003] Injection molding machines typically use high-capacity molten plastic storage cylinders, which are usually fed by automatic feeders. These feeders extract air from the cylinder to create a negative pressure environment for feeding. Automatic feeders are available in 300G, 700G, or higher models. However, since the 300G and 700G models are used for applications with smaller material loading, their carbon brush motors are typically 220V two-phase and do not have a reverse function. Therefore, they cannot perform backflushing to clean the filter screen. After a period of use, the cylinder needs to be opened and the filter screen cleaned, which is quite troublesome. To address this, we propose an automatic feeder. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an automatic suction machine that can brush off the dust adhering to the surface of the filter screen by rotating the brush, and at the same time collect the dust, thereby extending the service life of the filter screen and effectively solving the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic material feeding machine, comprising a feeding cylinder, a dustproof mechanism, and a collection mechanism;

[0006] Feeding cylinder: A base is placed on its right side, and a negative pressure chamber is set at the upper end of the base. The upper end of the negative pressure chamber is connected to the upper end of the feeding cylinder through a connecting pipe.

[0007] Dustproof mechanism: It includes a frame, a brush assembly, a filter frame and a filter. The upper part of the inside of the feeding cylinder is fixedly connected to the frame. The outer arc surface of the frame is provided with evenly distributed filter frames. The inside of each filter frame is fixedly connected to a filter. The lower middle part of the frame is provided with a brush assembly. The filters are all set in cooperation with the brush assembly.

[0008] Collection mechanism: Located on the left side of the feed cylinder, it uses rotating brushes to brush off the dust adhering to the filter screen surface and collect the dust, thus extending the filter screen's service life.

[0009] Furthermore, it also includes a control switch assembly, which is located on the front side of the base. The input end of the control switch assembly is electrically connected to an external power source to control the opening and closing of electrical appliances.

[0010] Furthermore, the filter assembly includes a turntable, brushes, and supports. The turntable is rotatably connected to the lower middle part of the frame, and the supports are fixedly connected to the edge of the turntable. Brushes are provided on the inner side of each support, and the outer arc surface of the filter screen contacts the upper end of each brush to clean the filter screen.

[0011] Furthermore, the dustproof mechanism also includes a motor. The motor is fixedly connected to the bottom wall of the frame. The lower end of the motor's output shaft is fixedly connected to the middle of the turntable. The input end of the motor is electrically connected to the output end of the control switch group to realize the rotation of the brush.

[0012] Furthermore, the lower end of the frame is provided with a slot 1, and an annular frame is fixedly connected to the lower surface of the frame edge. The inner side of the annular frame is provided with slot 2 and slot 3 from top to bottom. A uniformly distributed filter screen frame is engaged between slot 1 and slot 2. The upper end of the bracket is slidably connected to the inside of slot 3 to fix the filter screen and ensure that the brush is in close contact with the filter screen.

[0013] Furthermore, the collection mechanism includes a dust collection bag, a dust collection cylinder, a solenoid valve, and a connecting pipe. The middle of the feeding cylinder is provided with a dust collection pipe, and the left end of the dust collection pipe is fixedly connected to the dust collection cylinder. A solenoid valve is provided in the middle of the dust collection pipe, and a dust collection bag is fixedly fitted inside the dust collection cylinder. The upper end of the dust collection cylinder is connected to the air outlet of the feeding cylinder through the connecting pipe. The input end of the solenoid valve is electrically connected to the output end of the control switch group to collect dust.

[0014] Furthermore, a carbon brush motor is fixedly connected to the lower end of the negative pressure chamber. The vacuum chamber of the carbon brush motor is located inside the negative pressure chamber. The input end of the carbon brush motor is electrically connected to the output end of the control switch group to form a negative pressure environment.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This automatic feeding machine has the following advantages:

[0016] After feeding is completed, the brush rotates and brushes off the dust adhering to the filter screen. The dust enters the dust collection pipe and is intercepted by the dust collection bag. By controlling the start time of the motor, most of the dust adhering to the filter screen is collected inside the dust collection bag, extending the service life of the filter screen and reducing the number of times manual cleaning is required. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0019] Figure 3 This is a schematic diagram of the dustproof mechanism of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the brush assembly of this utility model;

[0021] Figure 5 This is a schematic diagram of the filter frame and filter structure of this utility model;

[0022] Figure 6 This is a cross-sectional structural diagram of the skeleton of this utility model.

[0023] In the diagram: 1. Feeding cylinder, 2. Base, 3. Dustproof mechanism, 31. Frame, 32. Brush assembly, 321. Turntable, 322. Brush, 333. Bracket, 33. Motor, 34. Filter frame, 35. Filter, 4. Collection mechanism, 41. Dust bag, 42. Dust cylinder, 43. Solenoid valve, 44. Connecting pipe one, 5. Negative pressure chamber, 6. Carbon brush motor, 7. Connecting pipe two, 8. Slot one, 9. Slot two, 10. Slot three, 11. Control switch group. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-6 This embodiment provides a technical solution: an automatic feeding machine, including a feeding cylinder 1, a dustproof mechanism 3, and a collection mechanism 4;

[0026] Feeding cylinder 1: A base 2 is placed on its right side. A negative pressure chamber 5 is set at the upper end of the base 2. The upper end of the negative pressure chamber 5 is connected to the upper end of the feeding cylinder 1 through a connecting pipe 2 7. A carbon brush motor 6 is fixedly connected to the lower end of the negative pressure chamber 5. The vacuum chamber of the carbon brush motor 6 is located inside the negative pressure chamber 5. The input end of the carbon brush motor 6 is electrically connected to the output end of the control switch group 11. When the carbon brush motor 6 starts, the vacuum chamber of the carbon brush motor 6 draws out the air inside the feeding cylinder 1 through the connecting pipe 2 7 and discharges it from the air outlet of the negative pressure chamber 5, so that a negative pressure is formed inside the feeding cylinder 1. The injection molding particles are sucked into the feeding cylinder 1 from the suction pipe and then fall into the inside of the injection molding machine storage cylinder.

[0027] Dustproof mechanism 3: It includes a frame 31, a brush assembly 32, a filter frame 34, and a filter 35. The frame 31 is fixedly connected to the upper part of the inside of the feeding cylinder 1. The outer arc surface of the frame 31 is provided with evenly distributed filter frames 34. Filters 35 are fixedly connected to the inside of each filter frame 34. The brush assembly 32 is provided at the lower middle part of the frame 31. The filters 35 are all configured to cooperate with the brush assembly 32. The brush assembly 32 includes a turntable 321, a brush 322, and a bracket 333. The turntable 321 is rotatably connected to the lower middle part of the frame 31. The edge of the turntable 321 is fixedly connected with evenly distributed brackets 333. The inner side of each bracket 333 is provided with a brush 322. The outer arc surface of each filter 35 contacts the upper end of the brush 322. The dustproof mechanism 3 also includes a motor 33. The motor 33 is fixedly connected to the bottom wall of the frame 31. The lower end of the output shaft is fixedly connected to the middle of the turntable 321. The input end of the motor 33 is electrically connected to the output end of the control switch group 11. The lower end of the frame 31 is provided with a slot 8. An annular frame is fixedly connected to the lower surface of the edge of the frame 31. The inner side of the annular frame is provided with slots 9 and 10 from top to bottom. Filter screen frames 34 are evenly distributed and engaged between slots 8 and 9. The upper end of the bracket 333 is slidably connected to the inside of slot 10. After feeding, the motor 33 is turned on by the control switch group 11. The motor 33 drives the turntable 321, brush 322 and bracket 333 to rotate. The upper end of the bracket 333 is slidably connected to the inside of slot 10, so that the brush 322 is in close contact with the filter screen 35. The brush 322 rotates and washes away most of the dust. The dust floats back into the inside of the feeding cylinder 1.

[0028] Collection mechanism 4: It is located on the left side of the feeding cylinder 1. The collection mechanism 4 includes a dust collection bag 41, a dust collection cylinder 42, a solenoid valve 43, and a connecting pipe 44. A dust collection pipe is provided in the middle of the feeding cylinder 1. The dust collection cylinder 42 is fixedly connected to the left end of the dust collection pipe. A solenoid valve 43 is provided in the middle of the dust collection pipe. The dust collection bag 41 is fixedly fitted inside the dust collection cylinder 42. The upper end of the dust collection cylinder 42 is connected to the air outlet of the feeding cylinder 1 through the connecting pipe 44. The input end of the solenoid valve 43 is electrically connected to the output end of the control switch group 11. When the solenoid valve 43 is opened, the carbon brush motor 6 is started again. Dust is sucked into the dust collection pipe and re-attached to the outer arc surface of the filter screen 35. The dust in the dust collection pipe is intercepted inside the dust collection bag 41.

[0029] It also includes a control switch group 11, which is located on the front side of the base 2, and the input end of the control switch group 11 is electrically connected to an external power supply.

[0030] The working principle of the automatic feeding machine provided by this utility model is as follows: The feeding cylinder 1 is fixedly connected to the upper end of the injection molding machine's storage cylinder. The pipe in the middle of the feeding cylinder 1 is connected to the suction pipe. The carbon brush motor 6 is started. The vacuum chamber of the carbon brush motor 6 draws out the internal air of the feeding cylinder 1 through the connecting pipe 2 7 and discharges it from the air outlet of the negative pressure chamber 5, so that a negative pressure is formed inside the feeding cylinder 1. The injection molding particles are sucked into the feeding cylinder 1 from the suction pipe and then fall into the inside of the injection molding machine's storage cylinder. At the same time, the dust inside the injection molding particles is attracted upward and floats up, adhering to the outer arc surface of the filter screen 35. After the feeding is completed, the motor 33 is turned on by the control switch group 11. The motor 33 drives the entire assembly consisting of the turntable 321, brush 322 and bracket 333 to rotate. The upper end of the bracket 333 is... The brush 322 is slidably connected to the inside of the slot 10, so that it is in close contact with the filter screen 35. The brush 322 rotates and brushes away most of the dust. The dust floats back into the inside of the feeding cylinder 1. At the same time, the solenoid valve 43 opens and the carbon brush motor 6 starts again. The dust is sucked into the dust collection pipe and re-attached to the outer arc surface of the filter screen 35. The dust in the dust collection pipe is intercepted inside the dust collection bag 41. The dust re-attached to the filter screen 35 is brushed off again by the brush 322 until most of the dust is collected inside the dust collection bag 41. The starting time of the motor 33 is controlled by the feeding to ensure the cleaning effect of the filter screen 35. When replacing the filter screen 35, the filter screen frame 34 is removed and the cleaned or new filter screen frame 34 is snapped between the slot 1 8 and the slot 2 9.

[0031] It is worth noting that the carbon brush motor 6 disclosed in the above embodiments can be an AMETEK vacuum motor, the solenoid valve 43 can be an SMS solenoid valve, the motor 33 can be a 775 series motor, and the control switch group 11 is provided with switch buttons corresponding to the carbon brush motor 6, the solenoid valve 43 and the motor 33 for controlling their switching operation.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An automatic feeding machine, characterized in that: It includes a feeding cylinder (1), a dust prevention mechanism (3), and a collection mechanism (4); Feeding cylinder (1): A base (2) is placed on its right side. A negative pressure chamber (5) is provided at the upper end of the base (2). The upper end of the negative pressure chamber (5) is connected to the upper end of the feeding cylinder (1) through a connecting pipe (7). Dustproof mechanism (3): It includes a frame (31), a brush assembly (32), a filter frame (34) and a filter (35). The upper end of the feed cylinder (1) is fixedly connected to the frame (31). The outer arc surface of the frame (31) is provided with evenly distributed filter frames (34). The filter frames (34) are all fixedly connected to the inside of the filter frames (34). The lower end of the middle part of the frame (31) is provided with a brush assembly (32). The filter (35) is set in cooperation with the brush assembly (32). Collection mechanism (4): It is located on the left side of the feed cylinder (1).

2. The automatic feeding machine according to claim 1, characterized in that: It also includes a control switch group (11), which is located on the front side of the base (2), and the input end of the control switch group (11) is electrically connected to an external power source.

3. An automatic feeding machine according to claim 2, characterized in that: The brush assembly (32) includes a turntable (321), a brush (322) and a bracket (333). The lower middle part of the frame (31) is rotatably connected to the turntable (321). The edge of the turntable (321) is fixedly connected to the evenly distributed brackets (333). The inner side of the brackets (333) is provided with brushes (322). The outer arc surface of the filter screen (35) is in contact with the upper end of the brushes (322).

4. An automatic feeding machine according to claim 3, characterized in that: The dustproof mechanism (3) also includes a motor (33). The bottom wall of the frame (31) is fixedly connected to the motor (33). The lower end of the output shaft of the motor (33) is fixedly connected to the middle part of the turntable (321). The input end of the motor (33) is electrically connected to the output end of the control switch group (11).

5. An automatic feeding machine according to claim 3, characterized in that: The lower end of the frame (31) is provided with a slot 1 (8), and an annular frame is fixedly connected to the lower surface of the edge of the frame (31). The inner side of the annular frame is provided with slot 2 (9) and slot 3 (10) from top to bottom. A uniformly distributed filter frame (34) is engaged between slot 1 (8) and slot 2 (9). The upper end of the bracket (333) is slidably connected to the inside of slot 3 (10).

6. An automatic feeding machine according to claim 2, characterized in that: The collection mechanism (4) includes a dust collection bag (41), a dust collection cylinder (42), a solenoid valve (43), and a connecting pipe (44). The middle part of the feeding cylinder (1) is provided with a dust collection pipe. The left end of the dust collection pipe is fixedly connected to the dust collection cylinder (42). The middle part of the dust collection pipe is provided with a solenoid valve (43). The dust collection cylinder (42) is fixedly fitted with a dust collection bag (41). The upper end of the dust collection cylinder (42) is connected to the air outlet of the feeding cylinder (1) through the connecting pipe (44). The input end of the solenoid valve (43) is electrically connected to the output end of the control switch group (11).

7. An automatic feeding machine according to claim 2, characterized in that: A carbon brush motor (6) is fixedly connected to the lower end of the negative pressure chamber (5). The vacuum chamber of the carbon brush motor (6) is located inside the negative pressure chamber (5). The input end of the carbon brush motor (6) is electrically connected to the output end of the control switch group (11).

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