Mould locking mechanism of all-electric injection molding machine

Abstract

The utility model relates to the technical field of plastic molding, in particular to a mold locking mechanism of an all-electric injection molding machine, which comprises a base, two sides of the upper end face of the base are respectively and fixedly connected with a fixed seat I and a fixed seat II, and the outer wall of one side of the fixed seat II opposite to the fixed seat I is fixedly connected with a fixed mold. A lead screw is rotationally connected to the first fixing seat, a driving block is in threaded connection with the outer wall of the lead screw, a rear push plate is fixedly connected to the outer wall of the driving block, a sliding plate is fixedly connected to the outer wall of the first fixing seat, a sliding block is arranged in the sliding plate in a sliding mode, and a first connecting plate is fixedly connected between the sliding block and the rear push plate; the sliding block is further fixedly connected with a second connecting plate. According to the mold locking mechanism, the sliding plate, the sliding rod, the sliding block, the first connecting plate, the second connecting plate, the front push plate, the driving block, the servo motor and the lead screw structure are matched with one another, so that the mold locking mechanism has the advantages of being more uniform in mold closing and higher in precision.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plastic forming, especially a locking mechanism of full-electric injection molding machine. BACKGROUND

[0002] Injection molding is a process that plastic material is plasticized into melt by external heating and shear heat generated by screw rotation in the barrel of injection molding machine, and then the melt is injected into a cavity with a certain shape by applying a certain pressure, and the product is formed after cooling and setting.

[0003] The locking drive of the traditional injection molding machine is completed by a hydraulic cylinder. Due to the influence of factors such as pressure fluctuation and leakage of the hydraulic system, it may cause uneven mold closure, and thus affect the precision. The injection molding applicability is generally high for high precision requirements. Therefore, we propose a locking mechanism of full-electric injection molding machine for improvement. UTILITY MODEL CONTENT

[0004] The utility model discloses a locking mechanism of full-electric injection molding machine, which adopts a servo motor drive, has the advantages of more uniform mold closing and higher precision.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a locking mechanism of full-electric injection molding machine, comprising a base, the upper end face of the base is fixedly connected with a fixed seat one and a fixed seat two on both sides respectively, a fixed mold is fixedly connected on the outer wall of the side of the fixed seat two opposite to the fixed seat one, a screw rod is rotatably connected on the fixed seat one, a driving block is threadedly connected on the outer wall of the screw rod, a rear push plate is fixedly connected on the outer wall of the driving block, a sliding plate is fixedly connected on the outer wall of the fixed seat one, a sliding block is slidably arranged in the sliding plate, a connecting plate one is fixedly connected between the sliding block and the rear push plate, a connecting plate two is also fixedly connected on the sliding block, a front push plate is fixedly connected on the other end of the connecting plate two, an installation plate is fixedly connected on the outer wall of the front push plate, and a movable mold is fixedly arranged on the other end of the installation plate.

[0006] Through the above technical scheme, the locking mechanism realizes the purpose of closing the movable mold driven by the screw rod. Compared with hydraulic drive, it can meet the application occasions with higher precision requirements.

[0007] Further description of the above technical scheme:

[0008] The fixed seat one and the fixed seat two are slidably connected with guide rods near the four corners, and the fixed mold and the movable mold are slidably sleeved on the outer wall of the guide rod.

[0009] Through the above technical scheme, the guide rod can further improve the precision of the movable mold during mold closing.

[0010] As a further description of the above technical solution:

[0011] The sliding plate is provided with a sliding groove, and sliding rods are fixedly connected between the inner walls on both sides of the sliding groove.

[0012] Through the above technical solution, the movement of the sliding block is limited by the sliding rod, which can avoid the deviation of the driving block during movement and improve the stability of the moving die movement.

[0013] As a further description of the above technical solution:

[0014] The number of sliding plates is four, and the four sliding plates are evenly distributed on the same side of the fixed seat one near the four corners.

[0015] Through the above technical solution, the stress uniformity of the front and rear push plates is improved.

[0016] As a further description of the above technical solution:

[0017] The upper end surface of the base is fixedly connected with a servo motor, and the output end of the servo motor is fixedly connected with one end of the lead screw.

[0018] Through the above technical solution, the lead screw is driven to rotate by the servo motor, and then the driving block is moved.

[0019] As a further description of the above technical solution:

[0020] The outer wall of the end of the moving die away from the fixed die is fixedly connected with a mounting block, and the front and rear outer walls of the mounting block are provided with clamping grooves, and the front and rear inner walls of the mounting plate are provided with spring grooves. Two spring grooves are slidably connected with clamping blocks, and two clamping blocks are respectively clamped with two clamping grooves.

[0021] Through the above technical solution, the mounting block can be fixed in the mounting plate by clamping the clamping block in the clamping groove, so as to complete the installation and fixation of the moving die.

[0022] As a further description of the above technical solution:

[0023] The opposite ends of the two clamping blocks are fixedly connected with pull rods, and the outer walls of the two pull rods are fixedly connected with pressure plates, and the inner walls of the two spring grooves are fixedly connected with return springs, and the outer ends of the two pull rods are movably connected with the return springs.

[0024] Through the technical scheme, the clamping block is driven by the pull rod to be separated from the clamping groove, the mounting block is conveniently disassembled from the mounting plate, and the movable mold is disassembled from the mounting plate, and meanwhile, the reset spring can guarantee the reset of the clamping block, so that the clamping block can be always sleeved in the clamping groove during installation, and the clamping block is avoided from moving out of the clamping groove to cause structure loosening.

[0025] Further description of the technical scheme is as follows:

[0026] The upper end surface of the base is fixedly connected with a support plate, and the other end of the screw rod away from the fixed base is rotatably connected to the support plate.

[0027] Through the technical scheme, the other end of the screw rod is supported, and uneven stress is avoided to cause deformation.

[0028] The utility model has the advantages of the following beneficial effects:

[0029] 1. Compared with the prior art, the mold locking mechanism of the all-electric injection molding machine is provided with a slide plate, a slide rod, a slide block, a connecting plate one, a connecting plate two, a front push plate, a driving block, a servo motor and a screw rod structure which are matched with each other, so that the mold locking mechanism is driven to rotate by the servo motor, the driving block is driven to move, the front push plate is driven to move, the slide block is limited to slide on the slide rod, the connecting plate one and the connecting plate two are connected, the mounting plate is driven to move, and the movable mold is moved, the closing is more uniform, and the precision is better.

[0030] 2. Compared with the prior art, the mold locking mechanism of the all-electric injection molding machine is provided with a mounting block, a clamping groove, a clamping block, a pull rod, a pressing plate and a reset spring structure which are matched with each other, so that the mounting block is sleeved in the mounting plate between the movable mold and the front push plate, the clamping block is sleeved in the clamping groove for installation, the movable mold is quickly disassembled and assembled for maintenance, and the maintenance difficulty is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 The utility model provides a kind of mold locking mechanism of all-electric injection molding machine's side structure schematic view;

[0032] Figure 2 The utility model provides a kind of mold locking mechanism of all-electric injection molding machine's other side structure schematic view;

[0033] Figure 3 The utility model provides a kind of mold locking mechanism of all-electric injection molding machine's mounting plate internal structure schematic view;

[0034] Figure 4 The utility model provides a kind of mold locking mechanism of all-electric injection molding machine's front view.

[0035] LEGEND:

[0036] 1, base; 2, fixed seat one; 3, fixed seat two; 4, fixed mold; 5, slide plate; 6, slide rod; 7, sliding block; 8, connecting plate one; 9, connecting plate two; 10, front push plate; 11, drive block; 12, support plate; 13, servo motor; 14, screw; 15, guide rod; 16, movable mold; 17, mounting block; 18, clamping groove; 19, mounting plate; 20, spring groove; 21, clamping block; 22, pull rod; 23, pressing plate; 24, return spring; 25, rear push plate. DETAILED DESCRIPTION

[0037] REFERENCE Figures 1-4 The utility model provides a kind of locking mechanism of full electric injection molding machine provided by the utility model: including base 1, the upper end surface both sides of base 1 are respectively fixedly connected with fixed seat one 2 and fixed seat two 3, fixed seat two 3 is fixedly connected with fixed mold 4 on the side outer wall opposite fixed seat one 2, fixed seat one 2 is rotatably connected with screw 14, screw 14 is threadedly connected with drive block 11 on the outer wall, drive block 11 is moved by screw 14 rotation, drive block 11 is fixedly connected with rear push plate 25 on the outer wall, the outer wall of fixed seat one 2 is fixedly connected with slide plate 5, slidingly set with sliding block 7 in slide plate 5, sliding block 7 and rear push plate 25 are fixedly connected with connecting plate one 8, sliding block 7 is also fixedly connected with connecting plate two 9, the other end of connecting plate two 9 is fixedly connected with front push plate 10, the outer wall of front push plate 10 is fixedly connected with mounting plate 19, the other end of mounting plate 19 is fixedly provided with movable mold 16, when drive block 11 moves, it will drive rear push plate 25 to move, in turn drive sliding block 7 to move by connecting plate one 8, in turn drive connecting plate two 9 to move, in turn electric front push plate 10 moves, then movable mold 16 is moved by front push plate 10.

[0038] Through the above technical scheme, the locking mechanism realizes the purpose that screw 14 drives movable mold 16 to close, compared with hydraulic drive, can satisfy the higher precision requirement of applicable occasion.

[0039] Fixed seat one 2 and fixed seat two 3 are slidably connected with guide rod 15 near four corners, and fixed mold 4 and movable mold 16 are slidably connected to the outer wall of guide rod 15, which can further improve the precision of movable mold 16 when closing.

[0040] Slip groove is formed in slide plate 5, and slide rod 6 is fixedly connected between the inner walls of the two sides of the slip groove, and sliding block 7 is slidably connected to the outer wall of slide rod 6, which can limit the movement of sliding block 7 by slide rod 6, avoid the deviation of drive block 11 when moving, and improve the stability of movable mold 16.

[0041] The number of slide plates 5 is four, and the four slide plates 5 are evenly distributed near the four corners of the same side of fixed seat one 2, which improves the stress uniformity of front push plate 10 and rear push plate 25.

[0042] The upper end surface of the base 1 is fixedly connected with a servo motor 13, and the output end of the servo motor 13 is fixedly connected with one end of a lead screw 14. The lead screw 14 is driven to rotate by the servo motor 13, and in turn drives the driving block 11 to move.

[0043] The outer wall of the end of the movable mold 16 away from the fixed mold 4 is fixedly connected with a mounting block 17. The front and rear outer walls of the mounting block 17 are both provided with clamping grooves 18. The front and rear inner walls of a mounting plate 19 are both provided with spring grooves 20. Two clamping blocks 21 are both slidably connected in the two spring grooves 20. The two clamping blocks 21 are respectively clamped in the two clamping grooves 18. The clamping blocks 21 are used to sleeve the clamping grooves 18, so that the mounting block 17 can be fixed in the mounting plate 19, thereby completing the mounting and fixing of the movable mold 16.

[0044] The opposite ends of the two clamping blocks 21 are both fixedly connected with pull rods 22. The outer walls of the two pull rods 22 are both fixedly sleeved with pressing plates 23. The inner walls between the two pressing plates 23 and the two spring grooves 20 are both fixedly connected with return springs 24. The outer ends of the two return springs 24 are both movably sleeved in the pull rods 22. The clamping blocks 21 are driven to disengage from the clamping grooves 18 by the pull rods 22, so that the mounting block 17 can be disassembled from the mounting plate 19, thereby disassembling the movable mold 16 from the mounting plate 19. At the same time, the return springs 24 can ensure the resetting of the clamping blocks 21, so that the clamping blocks 21 can always be sleeved in the clamping grooves 18 during installation, avoiding the clamping blocks 21 moving out of the clamping grooves 18 and causing structural looseness.

[0045] The upper end surface of the base 1 is fixedly connected with a support plate 12. The other end of the lead screw 14 away from the fixed base 1 is rotatably connected to the support plate 12, thereby supporting the other end of the lead screw 14 and avoiding uneven stress on the lead screw 14, which may cause deformation.

[0046] Working principle: when in use, the servo motor 13 is started to drive the lead screw 14 to rotate, thereby driving the driving block 11 to move, and in turn driving the rear push plate 25 to move, and in turn driving the sliding block 7 to stably move under the limitation of the slide rod 6 through the connecting plate 1 8, and in turn driving the front push plate 10 to move through the connecting plate 2 9, and in turn driving the movable mold 16 to move and close towards the fixed mold 4. Since the lead screw 14 is used for driving, the precision is higher and the control is easier compared with hydraulic closing.

[0047] When the mold needs to be maintained and disassembled later, the clamping blocks 21 are driven to disengage from the clamping grooves 18 by the pull rods 22, so that the mounting block 17 can be disassembled from the mounting plate 19, thereby disassembling the movable mold 16 from the front push plate 10, which is convenient and time-saving.

[0048] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A locking mechanism of an all-electric injection molding machine comprising a base (1), characterized in that: The upper end face of the base (1) is fixedly connected with a fixed seat one (2) and a fixed seat two (3) respectively, one side outer wall of the fixed seat two (3) is fixedly connected with a fixed mold (4) relative to the fixed seat one (2), the fixed seat one (2) is rotatably connected with a lead screw (14), the outer wall of the lead screw (14) is threadedly connected with a driving block (11), the outer wall of the driving block (11) is fixedly connected with a rear push plate (25), the outer wall of the fixed seat one (2) is fixedly connected with a sliding plate (5), the sliding plate (5) is slidably provided with a sliding block (7), the sliding block (7) and the rear push plate (25) are fixedly connected with a connecting plate one (8), the sliding block (7) is further fixedly connected with a connecting plate two (9), one end of the connecting plate two (9) is fixedly connected with a front push plate (10), the outer wall of the front push plate (10) is fixedly connected with a mounting plate (19), the other end of the mounting plate (19) is fixedly provided with a movable mold (16).

2. An all-electric injection molding machine clamp mechanism according to claim 1, wherein: The fixed seat one (2) and the fixed seat two (3) are slidably connected with a guide rod (15) near the four corners, and the fixed mold (4) and the movable mold (16) are slidably sleeved on the outer wall of the guide rod (15).

3. An all-electric injection molding machine clamp mechanism as described in claim 1 wherein: The sliding plate (5) is provided with a sliding groove, and the sliding groove is fixedly connected between the inner walls on both sides.

4. An all-electric injection molding machine clamp mechanism as described in claim 1 wherein: The number of the sliding plate (5) is four, and the four sliding plates (5) are evenly distributed and arranged at the positions near the four corners on the same side of the fixed seat one (2).

5. An all-electric injection molding machine clamp mechanism as described in claim 1 wherein: The upper end face of the base (1) is fixedly connected with a servo motor (13), and the output end of the servo motor (13) is fixedly connected with one end of the lead screw (14).

6. An all-electric injection molding machine clamp mechanism as described in claim 1 wherein: The outer wall of the end of the movable mold (16) away from the fixed mold (4) is fixedly connected with a mounting block (17), the front and rear outer walls of the mounting block (17) are provided with clamping grooves (18), the front and rear inner walls of the mounting plate (19) are provided with spring grooves (20), two clamping blocks (21) are slidably connected in the spring grooves (20), and the two clamping blocks (21) are respectively clamped with the two clamping grooves (18).

7. An all-electric injection molding machine clamp mechanism as described in claim 6 wherein: The opposite ends of the two clamping blocks (21) are fixedly connected with pull rods (22), the outer walls of the two pull rods (22) are fixedly sleeved with pressing plates (23), the inner walls of the two pressing plates (23) and the two spring grooves (20) are fixedly connected with return springs (24), and the outer ends of the two return springs (24) are movably sleeved on the pull rods (22).

8. An all-electric injection molding machine clamp mechanism as described in claim 1 wherein: The upper end face of the base (1) is fixedly connected with a support plate (12), and the other end of the lead screw (14) away from the fixed seat one (2) is rotatably connected on the support plate (12).

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