Servo electro-hydraulic direct-pressure high-speed mold opening and closing device

Abstract

The utility model relates to the technical field of mold opening and closing devices, in particular to a servo electro-hydraulic direct-pressure high-speed mold opening and closing device which comprises a base and an electro-hydraulic direct-pressure structure, a fixed mold and a movable mold are fixedly arranged on the base, a plurality of guide rods are fixedly arranged on the fixed mold, through holes matched with the guide rods are formed in the movable mold, and the electro-hydraulic direct-pressure structure is arranged on the base. A lubricating structure and a cleaning structure which are matched with the through hole are arranged on the movable mold; the cleaning structure comprises a mounting groove formed in the through hole, a mounting seat is fixedly arranged in the mounting groove, a cleaning brush is arranged in the mounting seat, bristles of the cleaning brush make contact with the guide rod, the guide rod is cleaned by arranging the cleaning structure, dust on the guide rod is removed, the dust is prevented from being combined with lubricating oil to form oil dirt, and the service life of the guide rod is prolonged. And the guide rod can be cleaned through the cleaning structure, oil dirt on the guide rod is removed, and lubricating oil is smeared on the guide rod through sponge.

Description

Technical Field

[0001] The utility model relates to the technical field of mold opening and closing devices, in particular to a servo electro-hydraulic direct pressure high-speed mold opening and closing device. Background Art

[0002] The mainstream all-electric injection molding machine on the market adopts a five-point hinge structure for mold opening and closing. The elbows of this mold opening and closing structure are distributed on both sides of the template. The clamping force and linear motion of mold opening and closing are amplified by the curved arm. The mold opening and closing system usually adopts screw rods, servo motors, servo drivers and transmission belts to achieve precise displacement control. The servo motor controls the torque through the driver to prevent overload and protect the mold. The hydraulic clamping ensures stable clamping pressure. The system has three advantages: first, the screw drive ensures precise and high-speed movement; second, the motor torque monitoring, automatic alarm protection when foreign matter causes the torque to increase; third, the hydraulic clamping intervenes, and the electro-hydraulic combination realizes fast and precise opening and closing, effectively protecting the mold, and the servo mold opening and closing control can save more than 20% of electricity.

[0003] The existing mold opening and closing devices generally have a guide structure to guide the movement of the movable mold, so that the mold opening and closing actions can run more smoothly. For example, Chinese patent announcement number CN215969937U discloses "a high-speed driven mold closing structure for injection molding machines", which has a through hole in the middle of the lubricating oil box, the lubricating oil box and the through hole are connected through fine holes, the through hole is slidably connected to the driving rod, and the driving rod is fixed to the side of the movable mold plate away from the lubricating oil box; under the action of the lubricating oil, the driving rod can further accelerate the movement of the movable mold plate in combination with the rotation of the bottom plate, thereby increasing the mold closing speed and improving the product quality;

[0004] However, in actual use, the lubricating oil will combine with impurities such as dust to form oil stains that adhere to the guide rod. After the oil stains accumulate, they will block the movement of the movable mold. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art that lubricating oil will combine with impurities such as dust to form grease attached to the guide rod, and the accumulation of grease will block the movement of the movable mold, and a servo electro-hydraulic direct pressure high-speed mold opening and closing device is proposed.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A servo electro-hydraulic direct pressure high-speed mold opening and closing device is designed, comprising a base and an electro-hydraulic direct pressure structure, a fixed mold and a movable mold are fixedly arranged on the base, a plurality of guide rods are fixedly arranged on the fixed mold, a through hole matching with the guide rod is opened on the movable mold, and a lubrication structure and a cleaning structure matching with the through hole are arranged on the movable mold;

[0008] The cleaning structure comprises a mounting groove opened in the through hole, a mounting seat is fixedly arranged in the mounting groove, a cleaning brush is arranged in the mounting seat, and the bristles of the cleaning brush are in contact with the guide rod.

[0009] Furthermore, the cleaning brush is rotatably connected to the mounting seat, the cleaning brush comprises an annular frame and bristles, the bristles are arranged on the inner wall of the annular frame, and a driving structure matched with the cleaning brush is arranged in the movable mold.

[0010] Furthermore, the driving structure includes a motor fixedly disposed in the movable mold, a gear is fixedly disposed on the output shaft of the motor, and an annular tooth groove matching with the gear is formed on the annular frame.

[0011] Furthermore, the lubrication structure includes a mounting frame, an inner wall of the mounting frame is fixedly provided with a sponge, the sponge contains lubricating oil, and the sponge is in contact with the guide rod.

[0012] Furthermore, a limiting structure cooperating with the installation frame is arranged in the movable mold, and the limiting structure includes a slot opened in the movable mold, a limiting part is movably inserted in the slot, and a spring is arranged between the slot and the limiting part.

[0013] Furthermore, an oil box is fixedly arranged on the movable mold, and an oil outlet hole is arranged on the oil box, and the oil outlet hole is connected with the sponge.

[0014] The utility model proposes a servo electro-hydraulic direct pressure high-speed mold opening and closing device, which has the following beneficial effects:

[0015] In the utility model, the guide rod is cleaned by setting a cleaning structure to remove dust on the guide rod, thereby preventing dust from combining with lubricating oil to form grease, and the guide rod can be cleaned by the cleaning structure to remove grease on the guide rod;

[0016] Secondly, in the utility model, lubricating oil is applied to the guide rod through a sponge, which effectively prevents the lubricating oil from dripping due to excessive application and causing waste, and the sponge is continuously supplied with oil through the oil box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of a servo electro-hydraulic direct pressure high-speed mold opening and closing device proposed by the utility model;

[0018] Figure 2 It is a structural schematic diagram of the guide rod of the utility model;

[0019] Figure 3 This is an enlarged structural diagram of the A area of ​​the utility model;

[0020] Figure 4It is a structural schematic diagram of the annular frame of the utility model;

[0021] Figure 5 It is a schematic diagram of the structure of the gear of the utility model.

[0022] In the figure: 1. base; 2. electro-hydraulic direct pressure structure; 3. fixed mold; 4. movable mold; 41. through hole; 42. limit part; 43. spring; 5. guide rod; 6. lubrication structure; 61. mounting frame; 62. sponge; 63. oil box; 7. cleaning structure; 71. mounting groove; 72. mounting seat; 73. cleaning brush; 731. ring frame; 74. motor; 75. gear. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-5 A servo electro-hydraulic direct pressure high-speed mold opening and closing device comprises a base 1 and an electro-hydraulic direct pressure structure 2, a fixed mold 3 and a movable mold 4 are fixedly arranged on the base 1, a plurality of guide rods 5 are fixedly arranged on the fixed mold 3, a through hole 41 matching with the guide rod 5 is opened on the movable mold 4, and a lubrication structure 6 and a cleaning structure 7 matching with the through hole 41 are arranged on the movable mold 4;

[0025] The cleaning structure 7 includes a mounting groove 71 opened in the through hole 41 . A mounting seat 72 is fixedly disposed in the mounting groove 71 . A cleaning brush 73 is disposed in the mounting seat 72 . The bristles of the cleaning brush 73 are in contact with the guide rod 5 .

[0026] In the utility model, the guide rod 5 is cleaned by setting a cleaning structure 7 to remove dust attached to the guide rod 5, thereby preventing the dust from combining with the applied lubricating oil to form grease, and the guide rod 5 can be cleaned by the cleaning structure 7 to remove grease on the guide rod 5.

[0027] Furthermore, in the present embodiment, the cleaning brush 73 is rotatably connected to the mounting seat 72, and the cleaning brush 73 includes an annular frame 731 and bristles, and the bristles are arranged on the inner wall of the annular frame 731. A driving structure matched with the cleaning brush 73 is arranged in the movable mold 4, and the cleaning brush 73 is driven by the driving structure to rotate, so as to clean the guide rod 5 and remove dust and grease on the guide rod 5.

[0028] Furthermore, in this embodiment, the driving structure includes a motor 74 fixedly disposed in the movable mold 4, the output shaft of the motor 74 is fixedly provided with a gear 75, and an annular tooth groove matching the gear 75 is provided on the annular frame 731. The gear 75 is driven to rotate by the motor 74, and the cleaning brush 73 is driven to rotate to clean the guide rod 5.

[0029] It should be noted that, in this embodiment, the lubrication structure 6 includes a mounting frame 61, and a sponge 62 is fixedly provided on the inner wall of the mounting frame 61. The sponge 62 contains lubricating oil. The sponge 62 is in contact with the guide rod 5. The lubricating oil is applied to the guide rod 5 through the sponge 62, which effectively prevents the lubricating oil from dripping excessively and causing waste.

[0030] In addition, in this embodiment, a limiting structure that cooperates with the installation frame 61 is provided in the movable mold 4, and the limiting structure includes a slot opened in the movable mold 4, a limiting portion 42 is movably inserted in the slot, and a spring 43 is provided between the slot and the limiting portion 42. The installation frame 61 is fixed by the limiting portion 42, and the limiting portion 42 can be pressed to retract into the slot, and the installation frame 61 and the sponge can be taken out for replacement and cleaning.

[0031] In more detail, in this embodiment, an oil box 63 is fixedly provided on the movable mold 4 , and an oil outlet hole is provided on the oil box 63 . The oil outlet hole is communicated with the sponge 62 , and oil is supplied to the sponge 62 through the oil box 63 .

[0032] Working mode: When working, the motor 74 drives the gear 75 to rotate, drives the cleaning brush 73 to rotate, cleans the guide rod 5, removes the dust and grease on the guide rod 5, and applies lubricating oil to the guide rod 5 through the sponge 62, effectively preventing the lubricating oil from dripping excessively and causing waste. The limit part 42 can be pressed to retract it into the slot, and the mounting frame 61 and the sponge can be taken out for replacement and cleaning.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A servo electro-hydraulic direct pressure high-speed mold opening and closing device, comprising a base (1) and an electro-hydraulic direct pressure structure (2), characterized in that: A fixed mold (3) and a movable mold (4) are fixedly arranged on the base (1); a plurality of guide rods (5) are fixedly arranged on the fixed mold (3); a through hole (41) matching with the guide rods (5) is opened on the movable mold (4); and a lubrication structure (6) and a cleaning structure (7) matching with the through hole (41) are arranged on the movable mold (4); The cleaning structure (7) comprises a mounting groove (71) opened in the through hole (41), a mounting seat (72) is fixedly arranged in the mounting groove (71), a cleaning brush (73) is arranged in the mounting seat (72), and the bristles of the cleaning brush (73) are in contact with the guide rod (5).

2. A servo electro-hydraulic direct pressure high-speed mold opening and closing device according to claim 1, characterized in that: The cleaning brush (73) is rotatably connected to the mounting seat (72), and the cleaning brush (73) comprises an annular frame (731) and bristles, wherein the bristles are arranged on the inner wall of the annular frame (731), and a driving structure matching the cleaning brush (73) is arranged in the movable mold (4).

3. A servo electro-hydraulic direct pressure high-speed mold opening and closing device according to claim 2, characterized in that: The driving structure comprises a motor (74) fixedly arranged in the movable mold (4), a gear (75) being fixedly arranged on the output shaft of the motor (74), and an annular tooth groove matching the gear (75) being provided on the annular frame (731).

4. The servo electro-hydraulic direct pressure high-speed mold opening and closing device according to claim 1, characterized in that: The lubrication structure (6) comprises a mounting frame (61), a sponge (62) being fixedly arranged on the inner wall of the mounting frame (61), the sponge (62) containing lubricating oil, and the sponge (62) being in contact with the guide rod (5).

5. The servo electro-hydraulic direct pressure high-speed mold opening and closing device according to claim 4, characterized in that: A limiting structure cooperating with the installation frame (61) is arranged in the movable mold (4), and the limiting structure comprises a slot opened in the movable mold (4), a limiting portion (42) movably inserted in the slot, and a spring (43) is arranged between the slot and the limiting portion (42).

6. The servo electro-hydraulic direct pressure high-speed mold opening and closing device according to claim 4, characterized in that: An oil box (63) is fixedly arranged on the movable mold (4), and an oil outlet hole is arranged on the oil box (63), and the oil outlet hole is communicated with the sponge (62).

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