Excess material cleaning device for injection molding machine nozzle

Abstract

The utility model discloses an injection molding machine injection molding nozzle excess material cleaning device, especially relates to injection molding nozzle excess material cleaning technical field, including device main part, the top symmetrical fixed connection of device main part has slide rail, and the inside of slide rail is hibrid and is slidably connected with the lifting plate, and the inside of slide rail is provided with lifting mechanism, is used for driving the lifting of lifting plate, and the center of lifting plate is provided with round hole, and the bottom of lifting plate is provided with the circular slide groove of being located circular hole outer surface, and the inside rotation of circular slide groove is connected with the sliding block, and the bottom fixed connection of sliding block has fixed sleeve, and the gear box is arranged between two slide rails, and the inside of gear box is provided with the cleaning mechanism, is used for carrying out the cleaning to injection molding nozzle surface and inside. The utility model discloses through the outer surface of brush and then through the lifting mechanism and moves to the top of injection molding nozzle and is covered in the injection molding nozzle surface of lifting plate, has realized the fixation to injection molding nozzle, has solved the problem of the injury of worker because of injection molding nozzle flying out in the cleaning process.

Description

Technical Field

[0001] This utility model relates to the field of injection nozzle residue cleaning technology, specifically to an injection molding machine injection nozzle residue cleaning device. Background Technology

[0002] In the plastics processing industry, injection molding, as a core production process, is widely used in many fields such as automotive parts, electronics, and household goods due to its advantages of high efficiency, precision, and mass production capability. The injection molding machine, as a key piece of equipment in this process, has its injection nozzle, a core component connecting the barrel and the mold gate, which directly plays a crucial role in injecting molten plastic into the mold cavity.

[0003] When a single injection cycle is completed and the injection molding machine nozzle separates from the mold gate, due to the viscosity and surface tension of the molten plastic, some melt is very likely to remain at the outlet and outer surface of the injection nozzle, forming solidified residue. In order to facilitate subsequent use, the injection nozzle needs to be cleaned.

[0004] Currently, the most widely used method is manual cleaning, where operators need to manually scrape off excess material using tools such as copper brushes and scrapers between each injection cycle.

[0005] A simple mechanical cleaning device exists in the prior art. For example, a Chinese patent application with publication number CN221232993U discloses a device for cleaning residual material from the injection nozzle of an injection molding machine. After injection molding, water is added to the mixing hopper, and the water flows through a water pipe into the second cavity of a diversion box. A partition is set between the first cavity and the second cavity to effectively prevent the injection molding material from mixing with the water. The bottom of the second cavity in the diversion box has a second connection port, and the diversion box is connected to a water tank below through the second connection port to transfer the cleaning water to the water tank. Then, the piston plate installed at the output end of the electric push cylinder on one side of the water tank reciprocates to squeeze the cleaning water in the water tank into the inner cavity of the injection nozzle. The water pressure cleans the inside of the injection nozzle and removes the residual material on the surface during injection molding.

[0006] However, in actual use, if the residual material on the surface of the injection nozzle is highly viscous, the cleaning water needs to generate sufficiently strong pressure to remove it. However, increasing the water pressure can easily cause the injection nozzle to be ejected from the surface of the injection tube, posing a risk of worker injury. Utility Model Content

[0007] The purpose of this invention is to provide a device for cleaning residual material from the injection nozzle of an injection molding machine, which solves the problem of worker injury caused by the injection nozzle flying out during the cleaning process.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a device for cleaning residual material from the injection nozzle of an injection molding machine, comprising a device body, a slide rail symmetrically and fixedly connected to the top of the device body, a lifting plate slidably connected inside the slide rail, and a lifting mechanism provided inside the slide rail for driving the lifting plate to rise and fall;

[0009] The lifting plate has a circular hole in the center and a circular groove on the outer surface of the circular hole at the bottom. A slider is rotatably connected inside the circular groove and a fixing sleeve is fixedly connected to the bottom of the slider.

[0010] A gearbox is provided between the two slide rails, and a cleaning mechanism is provided inside the gearbox for cleaning the surface and interior of the injection nozzle.

[0011] Preferably, the lifting mechanism includes a second servo motor, and a lead screw is fixedly connected to the bottom output end of the second servo motor. The bottom of the lead screw is rotatably connected to the inside of the slide rail through a bearing, and the inside of the lifting plate is slidably connected to the lead screw.

[0012] Preferably, a scraper is fixedly connected inside the fixing sleeve.

[0013] Preferably, the cleaning mechanism includes a first servo motor, the output end of which is fixedly connected to a rotating shaft. The top of the rotating shaft passes through the top plane of the device body and is located above the device body. A brush is fixedly connected to the surface of the rotating shaft, and an injection nozzle is sleeved on the outer surface of the brush for cleaning the inside of the injection nozzle.

[0014] Preferably, a first pulley is fixedly sleeved on the surface of the rotating shaft, a first rotating rod is rotatably connected inside the gearbox via a bearing, a second pulley is fixedly sleeved on the surface of the first rotating rod, and the first pulley and the second pulley are connected by a belt drive.

[0015] Preferably, a first bevel gear is fixedly connected to the top of the first rotating rod, and a second rotating rod is rotatably connected to the top of the inside of the gearbox. A second bevel gear and a third bevel gear are respectively fixedly sleeved at both ends of the second rotating rod, and the second bevel gear meshes with the first bevel gear.

[0016] Preferably, a third rotating rod is rotatably connected inside the circular hole, and a fourth bevel gear is fixedly sleeved on the top of the third rotating rod. The fourth bevel gear is located inside the gearbox and meshes with the third bevel gear.

[0017] Preferably, the top of the fixing sleeve has a central hole, the interior of which is in contact with the surface of the third rotating rod, the surface of the third rotating rod has symmetrically formed grooves, and the interior of the fixing sleeve has sliding plates located on both sides of the central hole, the sliding plates being fitted and slidably connected inside the grooves.

[0018] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0019] 1. This utility model discloses a residual material cleaning device for injection molding machine nozzles. It employs a clever structural design to achieve stable fixing of the injection nozzle: During operation, the nozzle is first fitted onto the outer surface of the brush. Then, a lifting mechanism drives a lifting plate to precisely move to the top position of the nozzle, ensuring the lifting plate tightly fits onto the nozzle surface. This structural design provides double-limiting fixation for the nozzle, effectively preventing it from detaching or flying off the device surface due to external forces generated by brush rotation or vibration during cleaning. This significantly reduces equipment operation risks and safety hazards to surrounding operators and components, while providing a stable foundation for subsequent efficient and thorough cleaning operations.

[0020] 2. This utility model discloses a residual material cleaning device for injection molding machine nozzles, which adopts an integrated power transmission design to optimize cleaning efficiency: the rotational power output by the first servo motor can synchronously drive the rotating shaft and the third rotating rod to rotate; wherein, the rotational torque of the third rotating rod is directly transmitted to the fixed sleeve, driving the scraper mounted at the bottom of the fixed sleeve to rotate synchronously. This transmission structure realizes the coordinated linkage of cleaning actions, enabling the scraper to simultaneously clean the inner channel and outer surface of the injection molding nozzle in an all-round manner during the nozzle cleaning operation, covering the surface floating material, the inner wall of the outlet, and stubborn residual material in the gaps in one go, eliminating the need for step-by-step operation, and greatly improving the convenience and efficiency of cleaning. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0024] Figure 3 This is a schematic diagram of the lifting plate structure of this utility model;

[0025] Figure 4 for Figure 3 Enlarged view of section A in the middle;

[0026] Figure 5 This is a schematic diagram of the bottom structure of the top scraping component of this utility model;

[0027] Figure 6 This is a schematic diagram of the top structure of the top scraping component of this utility model;

[0028] Figure 7 This is a schematic diagram of the cleaning mechanism structure of this utility model;

[0029] Figure 8 for Figure 7 Enlarged view of section B in the middle;

[0030] Figure 9 for Figure 7 Enlarged view of section C.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Main body of the device; 2. Gearbox; 3. Slide rail; 4. Cleaning mechanism; 41. First servo motor; 42. Rotating shaft; 43. First pulley; 44. Brush; 45. Second pulley; 46. First rotating rod; 47. First bevel gear; 48. Second bevel gear; 49. Second rotating rod; 410. Third bevel gear; 411. Third rotating rod; 412. Fourth bevel gear; 413. Slide groove; 5. Lifting mechanism; 51. Lifting plate; 52. Second servo motor; 53. Lead screw; 54. Fixing sleeve; 55. Circular hole; 56. Circular slide groove; 57. Slide plate; 58. Scraper; 59. Slider; 510. Center hole. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0034] This utility model provides, for example Figure 1-9 The device shown is a residual material cleaning device for injection nozzle of an injection molding machine. It includes a main body 1. The top of the main body 1 is symmetrically and fixedly connected with slide rails 3. A lifting plate 51 is slidably connected inside the slide rails 3. A lifting mechanism 5 is provided inside the slide rails 3 to drive the lifting plate 51 to rise and fall. A gearbox 2 is provided between the two slide rails 3. The cross-sectional shape of the gearbox 2 is an inverted "L" shape. The gearbox 2 is connected to the inside of the main body 1. A cleaning mechanism 4 is provided inside the gearbox 2 to clean the surface and inside of the injection nozzle.

[0035] In order to clean the inner channel of the injection nozzle, such as Figure 7As shown, the cleaning mechanism 4 includes a first servo motor 41. The bottom of the first servo motor 41 is fixedly connected to the center of the device body 1. The output end of the first servo motor 41 is fixedly connected to a rotating shaft 42. The top of the rotating shaft 42 passes through the top plane of the device body 1 and is located above the device body 1. A brush 44 is fixedly connected to the surface of the rotating shaft 42. An injection nozzle is sleeved on the outer surface of the brush 44. The inner wall of the injection nozzle is in contact with the inner diameter of the brush 44. When the first servo motor 41 drives the rotating shaft 42 to rotate, the inner hole channel of the injection nozzle can be cleaned by the rotation of the brush 44.

[0036] To clean both the inner and outer surfaces of the injection nozzle simultaneously, a first pulley 43 is fixedly fitted onto the surface of the rotating shaft 42. The first pulley 43 is located inside the main body 1 of the device. A first rotating rod 46 is rotatably connected to the inside of the gearbox 2 via bearings. The first rotating rod 46 is located inside the vertical frame of the gearbox 2. A second pulley 45 is fixedly fitted onto the surface of the first rotating rod 46. The first pulley 43 and the second pulley 45 are connected by a belt drive. A first bevel gear 47 is fixedly connected to the top of the first rotating rod 46. A second rotating rod 49 is rotatably connected to the top of the inside of the gearbox 2. The second rotating rod 49 is located inside the cross frame of the gearbox 2. A second bevel gear 48 and a third bevel gear 410 are fixedly sleeved at both ends of the second rotating rod 49, respectively. The second bevel gear 48 meshes with the first bevel gear 47. A third rotating rod 411 is rotatably connected inside the circular hole 55. A fourth bevel gear 412 is fixedly sleeved at the top of the third rotating rod 411. The fourth bevel gear 412 is located inside the gearbox 2 and meshes with the third bevel gear 410.

[0037] When the rotating shaft 42 rotates, it simultaneously drives the first pulley 43 to rotate. The rotation of the first pulley 43 drives the second pulley 45 to rotate via a belt. The rotation of the second pulley 45 drives the first rotating rod 46 to rotate. The rotation of the first rotating rod 46 drives the first bevel gear 47 to rotate. The rotation of the first bevel gear 47 drives the second bevel gear 48 to rotate. The rotation of the second bevel gear 48 drives the second rotating rod 49 to rotate. The rotation of the second rotating rod 49 drives the third bevel gear 410 to rotate. The rotation of the third bevel gear 410 drives the fourth bevel gear 412 to rotate. The rotation of the fourth bevel gear 412 drives the third rotating rod 411 to rotate.

[0038] It should be noted that the center of the third rotating rod 411 is perpendicular to the center of the rotating shaft 42, which facilitates subsequent cleaning of the injection nozzle.

[0039] To fix the injection nozzle, such as Figure 2-4As shown, the lifting mechanism 5 includes a second servo motor 52. The bottom of the second servo motor 52 is fixedly connected to the inside of one of the slide rails 3. To achieve an aesthetically pleasing device, the outer walls of both slide rails 3 are fixed to the outer wall of the gearbox 2 via connecting plates. A lead screw 53 is fixedly connected to the bottom output end of the second servo motor 52. The bottom of the lead screw 53 is rotatably connected to the inside of the slide rail 3 via bearings. The inside of the lifting plate 51 is slidably connected to the lead screw 53. A circular hole 55 is opened in the center of the lifting plate 51. A circular groove 56 is opened on the bottom of the lifting plate 51 on the outer surface of the circular hole 55. A slider 59 is rotatably connected inside the circular groove 56. A fixing sleeve 54 is fixedly connected to the bottom of the slider 59. A scraper 58 is fixedly connected inside the fixing sleeve 54.

[0040] After the injection nozzle is fitted onto the outer wall of the brush 44, the operator starts the second servo motor 52. The start of the second servo motor 52 will drive the internal rotating shaft to rotate. The rotation of the rotating shaft can drive the lead screw 53 to rotate. The rotation of the lead screw 53 can drive the lifting plate 51 to move downward along the slide rail 3. When the fixing sleeve 54 at the bottom of the lifting plate 51 is fitted onto the outer surface of the injection nozzle, the injection nozzle is fixed.

[0041] It is worth noting that, in order to prevent damage to the surface of the injection nozzle, the rotation speed of the first servo motor 41 should not be too fast.

[0042] After the injection nozzle is cleaned, the staff starts the second servo motor 52 in the opposite direction, which drives the lifting plate 51 to move upward, making it easy to remove the injection nozzle.

[0043] It should be noted that multiple scrapers 58 are fixedly connected inside the fixed sleeve 54. The blade shape of the scraper 58 is adapted to the top shape of the outer surface of the injection nozzle. Therefore, multiple scrapers 58 can be linearly connected to the outer surface of the injection nozzle to support and limit the injection nozzle. After the third rotating rod 411 rotates, the scraper 58 will rotate along the surface of the injection nozzle. During the rotation, the scraper will scrape off the excess material adsorbed on the surface of the injection nozzle.

[0044] In order to push the fixed sleeve 54 downward when the lifting plate 51 moves downward without affecting the rotation of the fixed sleeve 54, such as Figure 5-8As shown, the top of the fixed sleeve 54 has a central hole 510, and the interior of the central hole 510 is in contact with the surface of the third rotating rod 411. The surface of the third rotating rod 411 has symmetrically provided grooves 413. The interior of the fixed sleeve 54 is provided with sliding plates 57 located on both sides of the central hole 510. The sliding plates 57 are fitted and slidably connected inside the grooves 413. When the lifting plate 51 moves downward, it will push the fixed sleeve 54 downward, so that the sliding plates 57 will slide downward along the grooves 413. As can be seen from the above, the slider 59 of the fixed sleeve 54 is rotatably connected inside the circular groove 56. When the rotation of the third rotating rod 411 drives the fixed sleeve 54 to rotate, the slider 59 at the top of the fixed sleeve 54 will slide inside the circular groove 56 without getting stuck.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents. The terms "comprising" or "including," and similar words as used in this invention, mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents.

[0046] However, other components or objects are not excluded. Words such as "connection" or "linked" are not limited to physical or mechanical connections, but can also include electrical connections, whether direct or indirect. "Up," "left," "right," etc., are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly. The technical or scientific terms used in this utility model should have the common meaning understood by a person with ordinary skills in the field to which this invention pertains.

Claims

1. A device for cleaning residual material from the injection nozzle of an injection molding machine, comprising a main body (1), characterized in that: The top of the main body (1) of the device is symmetrically fixedly connected with a slide rail (3), and a lifting plate (51) is slidably connected inside the slide rail (3). A lifting mechanism (5) is provided inside the slide rail (3) to drive the lifting plate (51) to rise and fall. The lifting plate (51) has a circular hole (55) in the center and a circular groove (56) on the outer surface of the circular hole (55) at the bottom of the lifting plate (51). A slider (59) is rotatably connected inside the circular groove (56) and a fixed sleeve (54) is fixedly connected to the bottom of the slider (59). A gearbox (2) is provided between the two slide rails (3), and a cleaning mechanism (4) is provided inside the gearbox (2) for cleaning the surface and interior of the injection nozzle.

2. The injection nozzle residue cleaning device for an injection molding machine according to claim 1, characterized in that: The lifting mechanism (5) includes a second servo motor (52), and a lead screw (53) is fixedly connected to the bottom output end of the second servo motor (52). The bottom of the lead screw (53) is rotatably connected to the inside of the slide rail (3) through a bearing. The inside of the lifting plate (51) is fitted and slidably connected to the lead screw (53).

3. The injection nozzle residue cleaning device for an injection molding machine according to claim 2, characterized in that: The fixed sleeve (54) is internally fixedly connected to a scraper (58).

4. The injection nozzle residue cleaning device for an injection molding machine according to claim 1, characterized in that: The cleaning mechanism (4) includes a first servo motor (41), the output end of which is fixedly connected to a rotating shaft (42). The top of the rotating shaft (42) passes through the top plane of the device body (1) and is located above the device body (1). A brush (44) is fixedly connected to the surface of the rotating shaft (42), and an injection nozzle is sleeved on the outer surface of the brush (44) for cleaning the inside of the injection nozzle.

5. The injection nozzle residue cleaning device for an injection molding machine according to claim 4, characterized in that: The surface of the rotating shaft (42) is fixedly fitted with a first pulley (43), and the inside of the gearbox (2) is rotatably connected to a first rotating rod (46) through a bearing. The surface of the first rotating rod (46) is fixedly fitted with a second pulley (45), and the first pulley (43) and the second pulley (45) are connected by belt drive.

6. The injection nozzle residue cleaning device for an injection molding machine according to claim 5, characterized in that: The top of the first rotating rod (46) is fixedly connected to a first bevel gear (47), and the top of the inside of the gearbox (2) is rotatably connected to a second rotating rod (49). The two ends of the second rotating rod (49) are respectively fixedly sleeved with a second bevel gear (48) and a third bevel gear (410), and the second bevel gear (48) meshes with the first bevel gear (47).

7. The injection nozzle residue cleaning device for an injection molding machine according to claim 6, characterized in that: The inner part of the circular hole (55) is rotatably connected to a third rotating rod (411), and a fourth bevel gear (412) is fixedly sleeved on the top of the third rotating rod (411). The fourth bevel gear (412) is located inside the gearbox (2), and the fourth bevel gear (412) meshes with the third bevel gear (410).

8. The injection nozzle residue cleaning device for an injection molding machine according to claim 7, characterized in that: The top of the fixed sleeve (54) is provided with a central hole (510), the interior of the central hole (510) is in contact with the surface of the third rotating rod (411), the surface of the third rotating rod (411) is symmetrically provided with sliding grooves (413), and the interior of the fixed sleeve (54) is provided with sliding plates (57) located on both sides of the central hole (510), the sliding plates (57) are fitted and slidably connected inside the sliding grooves (413).

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