Oil way cleaning mechanism of injection molding machine

Abstract

The utility model relates to the field of injection molding machines, and discloses an injection molding machine oil way cleaning mechanism which comprises a frame body, an oil tank and an injection molding machine, a filtering device is arranged on the front surface of the frame body, the oil tank is fixedly connected to the upper portion of the left side of the frame body, and the injection molding machine is arranged on the upper portion of the frame body. An oil tank fixing device is arranged on the outer side of the oil tank, the filtering device comprises a filter, and a cover plate is fixedly connected to the upper end of the filter. Through the cover plate, the oil outlet, the filter, the oil inlet, the rotating shaft, the impeller, the baffle plate, the movable sleeve, the filter paper, the cleaning rod, the oil return port and the three-way connector, impurities in hydraulic oil can be effectively filtered out, cleanliness of an oil way is guaranteed, the service life of the injection molding machine is prolonged, meanwhile, the impeller can be driven to rotate through force generated when the oil way moves, and the service life of the injection molding machine is prolonged. And the inner surface of the filter paper is cleaned through the cleaning rod to improve the filtering effect.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an oil circuit cleaning mechanism for an injection molding machine. Background Art

[0002] An injection molding machine is a piece of industrial equipment used to produce plastic products. It works by applying heat and pressure to inject plastic material into a mold, forming it into the desired shape. Injection molding machines are widely used to manufacture a wide range of plastic parts, from everyday items to complex industrial components.

[0003] In the prior art, a large number of hydraulic components are often required inside an injection molding machine to ensure the normal operation of the internal injection molding process. Therefore, when planning the equipment, it is necessary to simultaneously plan the pipelines for its internal oil circuits.

[0004] However, in actual use, since the existing filter often uses the filter paper and filter screen inside it to clean and purify the hydraulic oil passing through it, as time goes by, the filter paper and filter screen are easily clogged by impurities, resulting in a blocked oil circuit, affecting the normal operation of the injection molding machine. In addition, impurities in the oil circuit may also cause wear on the hydraulic components and shorten the service life of the equipment. In view of this, we propose an injection molding machine oil circuit cleaning mechanism. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides an oil circuit cleaning mechanism for an injection molding machine, which solves the problem in the prior art that the internal filtering efficiency of the filter decreases rapidly during long-term use.

[0006] In order to achieve the above-mentioned object, the utility model adopts the following technical solution: an injection molding machine oil circuit cleaning mechanism, comprising a frame body, an oil tank, and an injection molding machine, wherein a filtering device is provided on the front surface of the frame body, an oil tank is fixedly connected to the upper left portion of the frame body, an injection molding machine is provided on the upper portion of the frame body, and an oil tank fixing device is provided on the outer side of the oil tank;

[0007] The filtering device includes a filter, the upper end of the filter is fixedly connected to a cover plate, an oil outlet is provided on the left side of the upper outer arc surface of the filter, an oil inlet is provided on the right side of the upper outer arc surface of the filter, a baffle is slidably connected to the upper inner arc surface of the filter, a movable sleeve is fixedly connected to the inner arc surface of the baffle, filter paper is clamped on the lower surface of the movable sleeve, an oil return port is provided at the lower end of the filter, the lower part of the inner arc surface of the filter is rotatably connected to a rotating shaft, the upper part of the outer arc surface of the rotating shaft is fixedly connected to an impeller, the lower part of the outer arc surface of the rotating shaft is fixedly connected to a cleaning rod, the lower part of the filter is fixedly connected to a three-way joint, and a pressure detection device is provided on the upper part of the filter.

[0008] Preferably, the oil tank fixing device includes a support plate, a stop block is fixedly connected to the front of the upper surface of the support plate, a connecting block is fixedly connected to the upper surface of the support plate, the inner surface of the connecting pipe is rotatably connected to a hinge shaft, a piston plate is fixedly connected to the middle of the outer arc surface of the hinge shaft, the piston in the middle of the outer arc surface of the hinge shaft is connected to a damping chamber, both ends of the hinge shaft are fixedly connected to elastic telescopic rods, and the upper part of the elastic telescopic rod is hinged with a retaining ring.

[0009] Preferably, the pressure detection device includes a top plate, a pressure sensor is fixedly connected to the upper surface of the top plate, a warning light bar is fixedly connected to the outer arc surface of the pressure sensor, a connecting bolt is threadedly connected to the inner surface of the top plate, an electric push rod is fixedly connected to the lower surface of the top plate, and a detection probe is fixedly connected to the lower end of the pressure sensor.

[0010] Preferably, a circular protrusion is provided on the lower part of the inner arc surface of the filter, a filter paper clip is provided on the upper surface of the circular protrusion on the lower part of the inner arc surface of the filter, and a plurality of threaded through holes are provided on the inner surface of the cover plate.

[0011] Preferably, the oil outlet and the oil inlet are symmetrically distributed with the center line of the filter as the axis of symmetry, and the baffle is arranged as a whole to be inclined, with the left side of the baffle being higher than the upper edge of the oil outlet, and the right side of the baffle being lower than the lower edge of the oil inlet. A through hole is provided at the center of the inner surface of the baffle, and a filter paper clip is provided at the lower surface of the movable sleeve.

[0012] Preferably, the oil return port is connected to the three-way joint below, the upper end of the rotating shaft is rotatably connected to the cover plate, a plurality of groups of inclined arc-shaped blades are provided on the outer arc surface of the impeller, the height of the impeller is lower than the upper edge of the movable sleeve, and the outer arc surface of the cleaning rod is in contact with the filter paper.

[0013] Preferably, the support plate is located in the lower area of ​​the oil tank and is provided with a through hole, the end of the support plate away from the oil tank is fixedly connected to the main frame, the block is arranged as a whole in an arc shape, the inner arc surface of the block is in contact with the oil tank, a through hole is provided at the center of the inner surface of the connecting block, the outer arc surface of the piston plate is connected to the damping chamber piston, the inner surface of the piston plate is provided with multiple groups of through holes, and the damping chamber stores damping fluid inside.

[0014] Preferably, both the front and rear ends of the damping bin are provided with through holes, the lower end of the damping bin is fixedly connected to the support plate, the lower end of the elastic telescopic rod is provided with a through hole, the clamping ring is made of plastic material, and the curvature of the inner arc surface of the clamping ring is the same as the curvature of the outer arc surface of the fuel tank.

[0015] Preferably, the inner surface of the top plate is provided with multiple groups of threaded through holes, the lower surface of the top plate contacts the cover plate, a through hole is provided at the center of the inner surface of the cover plate, and the inner surface of the cover plate is provided with a through hole, and the connecting bolts fix the cover plate and the top plate through their own outer arc surface threads.

[0016] Preferably, the lower movable end of the electric push rod is fixedly connected to the shielding plate, the outer surface of the detection probe is fixedly connected to the cover plate, and the outer arc surface of the fixed end of the electric push rod is fixedly connected to the cover plate.

[0017] The utility model has the following beneficial effects:

[0018] 1. In the utility model, the cover plate, oil outlet, filter, oil inlet, rotating shaft, impeller, baffle, movable sleeve, filter paper, cleaning rod, oil return port and tee joint are provided to effectively filter out impurities in the hydraulic oil, ensure the cleanliness of the oil circuit and extend the service life of the injection molding machine. At the same time, the force generated by the movement of the oil circuit can drive the impeller to rotate, and the inner surface of the filter paper can be cleaned by the cleaning rod to improve the filtering effect.

[0019] 2. In the utility model, the provided clamping ring, elastic telescopic rod, support plate, connecting block, stopper, hinge shaft, damping chamber and piston plate can effectively absorb the vibration generated during the operation of the equipment, reduce the impact of the equipment on the oil tank during operation, thereby improving the stability of the oil, and also reduce the probability of impurities precipitated in the oil tank flowing back into the oil circuit due to vibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of an injection molding machine oil circuit cleaning mechanism proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the exterior of a filter for an oil circuit cleaning mechanism for an injection molding machine proposed in the present invention;

[0022] Figure 3 This is a schematic diagram of a filter cross section of an injection molding machine oil circuit cleaning mechanism proposed by the present invention;

[0023] Figure 4 This is a schematic diagram of the exterior of an oil tank of an injection molding machine oil circuit cleaning mechanism proposed in the utility model;

[0024] Figure 5 This is a schematic diagram of the cross section of the damping chamber of the oil circuit cleaning mechanism of an injection molding machine proposed by the utility model.

[0025] Legend:

[0026] 1. Frame body; 2. Filter device; 3. Oil tank fixing device; 4. Injection molding machine; 5. Oil tank; 201. Cover plate; 202. Oil outlet; 203. Filter; 204. Oil inlet; 205. Rotating shaft; 206. Impeller; 207. Shielding plate; 208. Movable sleeve; 209. Filter paper; 210. Cleaning rod; 211. Oil return port; 212. T-joint; 301. Snap ring; 302. Elastic telescopic rod; 303. Support plate; 304. Connecting block; 305. Stop block; 306. Articulated shaft; 307. Damping chamber; 308. Piston plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figure 1-Figure 3 The utility model provides an embodiment: comprising a frame body 1, an oil tank 5, and an injection molding machine 4. A filter device 2 is provided on the front surface of the frame body 1. The oil tank 5 is fixedly connected to the upper left side of the frame body 1. The injection molding machine 4 is provided on the upper part of the frame body 1. A oil tank fixing device 3 is provided on the outer side of the oil tank 5.

[0029] The filter device 2 includes a filter 203, the upper end of the filter 203 is fixedly connected to a cover plate 201, an oil outlet 202 is opened on the left side of the upper outer arc surface of the filter 203, an oil inlet 204 is opened on the right side of the upper outer arc surface of the filter 203, a baffle plate 207 is slidably connected to the upper inner arc surface of the filter 203, a movable sleeve 208 is fixedly connected to the inner arc surface of the baffle plate 207, and a filter paper 209 is clamped on the lower surface of the movable sleeve 208, and an oil return port 211 is opened at the lower end of the filter 203. The oil return principle of the oil return port 211 is the existing technology and is not described here. The lower part of the inner arc surface of the filter 203 is rotatably connected to the rotating shaft 205, the upper outer arc surface of the rotating shaft 205 is fixedly connected to the impeller 206, the lower outer arc surface of the rotating shaft 205 is fixedly connected to the cleaning rod 210, the lower part of the filter 203 is fixedly connected to the three-way joint 212, and the upper part of the filter 203 is provided with a pressure detection device 4.

[0030] The filter 203 has an annular protrusion at the lower part of the inner arc surface, so that it can separate the return oil port 211 and the oil outlet 202 and provide support for the rotating shaft 205. A filter paper clip is provided on the upper surface of the annular protrusion at the lower part of the inner arc surface of the filter 203, so the position of the filter paper 209 can be limited by the movable sleeve 208 and the filter paper clip inside the filter 203. The inner surface of the cover plate 201 is provided with multiple groups of threaded through holes, so that it can accommodate the connecting bolts 402 located inside it. The oil outlet 202 and the oil inlet 204 are symmetrically distributed with the center line of the filter 203 as the axis of symmetry. The baffle plate 207 is set to an inclined shape as a whole. The left side of the baffle plate 207 is higher than the upper edge of the oil outlet 202, and the right side of the baffle plate 207 is higher than the upper edge of the oil outlet 202. It is lower than the lower edge of the oil inlet 204, so that the oil entering the filter 203 can move along the prescribed route to the oil outlet 202 and fully contact the filter paper 209 during the movement. A through hole is provided at the center of the inner surface of the baffle 207, so that the movable sleeve 208 can be accommodated inside it. A filter paper bayonet is provided at the lower surface of the movable sleeve 208, and the oil return port 211 is connected to the lower three-way joint 212. The upper end of the rotating shaft 205 is rotatably connected to the cover plate 201, and a plurality of groups of inclined arc-shaped blades are provided on the outer arc surface of the impeller 206. Therefore, when the oil flows along a fixed route, it can be driven to rotate. The height of the impeller 206 is lower than the upper edge of the movable sleeve 208, and the outer arc surface of the cleaning rod 210 is in contact with the filter paper 209.

[0031] Please see the attached Figure 1 , Attachment Figure 4 And attached Figure 5 The oil tank fixing device 3 includes a support plate 303, a stop block 305 is fixedly connected to the front of the upper surface of the support plate 303, a connecting block 304 is fixedly connected to the upper surface of the support plate 303, the inner surface of the connecting block 304 is rotatably connected to a hinge shaft 306, a piston plate 308 is fixedly connected to the middle of the outer arc surface of the hinge shaft 306, a damping chamber 307 is connected to the piston in the middle of the outer arc surface of the hinge shaft 306, and both ends of the hinge shaft 306 are fixedly connected to an elastic telescopic rod 302, and the upper part of the elastic telescopic rod 302 is hinged with a retaining ring 301.

[0032] The support plate 303 is located in the lower area of ​​the oil tank 5 and is provided with a through hole, so that it can accommodate the extension of the lower pipeline of the oil tank 5. The end of the support plate 303 away from the oil tank 5 is fixedly connected to the frame body 1. The stopper 305 is set as an arc as a whole, so that its inner arc surface can fit with the oil tank 5. The inner arc surface of the stopper 305 is in contact with the oil tank 5. A through hole is provided at the center of the inner surface of the connecting block 304, so that it can accommodate the hinge shaft 306 passing through it and rotating inside it. The outer arc surface of the piston plate 308 is connected to the piston of the damping chamber 307. The inner surface of the piston plate 308 is provided with multiple groups of through holes, so that the piston During the rotation of plate 308, the damping fluid can only move along its internal through hole, thereby hindering the movement of piston plate 308. Damping fluid is stored inside the damping chamber 307. Through holes are provided at the front and rear ends of the damping chamber 307, so that the hinge shaft 306 can pass through. The lower end of the damping chamber 307 is fixedly connected to the support plate 303, and a through hole is provided at the lower end of the elastic telescopic rod 302, so that it can be fixedly connected to the hinge shaft 306. The retaining ring 301 is made of plastic material, so it can produce a certain deformation during the installation of the oil tank 5 and clamp the oil tank 5. The curvature of the inner arc surface of the retaining ring 301 is the same as the curvature of the outer arc surface of the oil tank 5.

[0033] Working principle: When the device is in use, it is necessary to keep the oil inlet 204, the oil outlet 202 and the oil return port 211 connected to the oil circuit. At this time, the flowing hydraulic oil will enter the interior of the device from the oil inlet 204 under the push of the oil pump. At this time, due to the shielding of the baffle 207 on the inner surface of the filter 203, the hydraulic oil entering the filter 203 can only enter the filter paper 209 area along the upper part of the movable sleeve 208, and after being filtered, the oil level inside the filter 203 gradually increases through the filter paper 209, and finally is discharged from the oil outlet 202 without the filter paper 209. At the same time, during the filtration process, since the hydraulic oil can only flow in one direction, the oil level inside the filter 203 gradually increases through the filter paper 209. It enters from the upper end of the movable sleeve 208, so that the flowing hydraulic oil can synchronously drive the impeller 206 to rotate during the movement. When the impeller 206 rotates, it will synchronously drive the rotating shaft 205 fixedly connected to the inner arc surface to rotate. When the rotating shaft 205 rotates, it will synchronously drive the cleaning rod 210 to rotate, avoiding large particles of impurities inside the hydraulic oil to stay in a certain position to block the filtering effect of the filter paper 209. At the same time, since the entry and outflow trajectories of the hydraulic oil inside the device are certain, the filter paper 209 can fully contact with the hydraulic oil waiting to be filtered, thereby making the overall filtering effect of the device better.

[0034] At the same time, when the injection molding machine 4 is in normal use, the entire device will vibrate to a certain extent, and the oil tank will vibrate to a certain extent as a whole. At this time, the granular impurities accumulated inside the oil tank 5 will be driven and risk polluting the oil circuit. At this time, the horizontal vibration of the oil tank 5 will synchronously drive the clamping ring 301 to move, and the clamping ring 301 can drive the elastic telescopic rod 302 to contract as a whole, thereby preliminarily buffering the impact force through the elastic force of the elastic telescopic rod 302 itself. At the same time, when the elastic telescopic rod 302 contracts or extends, the elastic telescopic rod 302 The angle between it and the support plate 303 will change to a certain extent. At this time, the hinge shaft 306 will also be driven by the elastic telescopic rod 302 to rotate. When the hinge shaft 306 rotates, it will synchronously drive the piston plate 308 to rotate. At this time, since the damping liquid is stored inside the damping chamber 307, the piston plate 308 will be hindered by the damping liquid during the rotation process, and the damping liquid will form a motion damping for the piston plate 308, and then through buffering and motion damping, the oil tank 5 is less affected when the equipment is running and vibrates.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An injection molding machine oil circuit cleaning mechanism, comprising a frame body (1), an oil tank (5), and an injection molding machine (4), characterized in that: A filter device (2) is provided on the front surface of the frame body (1); an oil tank (5) is fixedly connected to the upper left side of the frame body (1); an injection molding machine (4) is provided on the upper part of the frame body (1); and an oil tank fixing device (3) is provided on the outer side of the oil tank (5); the filter device (2) comprises a filter (203); a cover plate (201) is fixedly connected to the upper end of the filter (203); an oil outlet (202) is provided on the left side of the upper outer arc surface of the filter (203); an oil inlet (204) is provided on the right side of the upper outer arc surface of the filter (203); and the filter (203) is provided with a plurality of oil outlets (202). A baffle (207) is slidably connected to the upper portion of the inner arc surface, a movable sleeve (208) is fixedly connected to the inner arc surface of the baffle (207), a filter paper (209) is clamped on the lower surface of the movable sleeve (208), an oil return port (211) is provided at the lower end of the filter (203), a rotating shaft (205) is rotatably connected to the lower portion of the inner arc surface of the filter (203), an impeller (206) is fixedly connected to the upper portion of the outer arc surface of the rotating shaft (205), a cleaning rod (210) is fixedly connected to the lower portion of the outer arc surface of the rotating shaft (205), and a three-way joint (212) is fixedly connected to the lower portion of the filter (203).

2. The oil circuit cleaning mechanism for an injection molding machine according to claim 1, characterized in that: The oil tank fixing device (3) comprises a support plate (303), a stopper (305) is fixedly connected to the front portion of the upper surface of the support plate (303), a connecting block (304) is fixedly connected to the upper surface of the support plate (303), an inner surface of the connecting block (304) is rotatably connected to a hinge shaft (306), a piston plate (308) is fixedly connected to the middle portion of the outer arc surface of the hinge shaft (306), a damping chamber (307) is connected to the piston in the middle portion of the outer arc surface of the hinge shaft (306), both ends of the hinge shaft (306) are fixedly connected to an elastic telescopic rod (302), and the upper portion of the elastic telescopic rod (302) is hingedly connected to a snap ring (301).

3. The oil circuit cleaning mechanism for an injection molding machine according to claim 1, characterized in that: A circular protrusion is provided at the lower portion of the inner arc surface of the filter (203), a filter paper clip is provided at the upper surface of the circular protrusion at the lower portion of the inner arc surface of the filter (203), and a plurality of threaded through holes are provided on the inner surface of the cover plate (201).

4. The oil circuit cleaning mechanism for an injection molding machine according to claim 1, characterized in that: The oil outlet (202) and the oil inlet (204) are symmetrically distributed with the center line of the filter (203) as the symmetry axis. The baffle (207) is arranged as a whole in an inclined shape. The left side of the baffle (207) is higher than the upper edge of the oil outlet (202), and the right side of the baffle (207) is lower than the lower edge of the oil inlet (204). A through hole is provided at the center of the inner surface of the baffle (207), and a filter paper clip is provided at the lower surface of the movable sleeve (208).

5. The oil circuit cleaning mechanism for an injection molding machine according to claim 1, characterized in that: The oil return port (211) is connected to the lower three-way joint (212), the upper end of the rotating shaft (205) is rotatably connected to the cover plate (201), and a plurality of groups of inclined arc-shaped blades are provided on the outer arc surface of the impeller (206). The height of the impeller (206) is lower than the upper edge of the movable sleeve (208), and the outer arc surface of the cleaning rod (210) is in contact with the filter paper (209).

6. The oil circuit cleaning mechanism for an injection molding machine according to claim 2, characterized in that: The support plate (303) is located in the lower area of ​​the oil tank (5) and is provided with a through hole. The end of the support plate (303) away from the oil tank (5) is fixedly connected to the frame body (1). The stopper (305) is arranged as a whole in an arc shape. The inner arc surface of the stopper (305) contacts the oil tank (5). A through hole is provided at the center of the inner surface of the connecting block (304). The outer arc surface of the piston plate (308) is connected to the piston of the damping chamber (307). The inner surface of the piston plate (308) is provided with multiple groups of through holes. The damping chamber (307) stores damping fluid inside.

7. The oil circuit cleaning mechanism for an injection molding machine according to claim 2, characterized in that: The damping chamber (307) is provided with through holes at both the front and rear ends. The lower end of the damping chamber (307) is fixedly connected to the support plate (303). The lower end of the elastic telescopic rod (302) is provided with a through hole. The clamping ring (301) is made of plastic material. The curvature of the inner arc surface of the clamping ring (301) is the same as the curvature of the outer arc surface of the oil tank (5).

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