Mould locking mechanism of two-plate type hollow blow molding machine

Abstract

The utility model relates to the technical field of mold locking equipment, in particular to a two-plate type hollow blow molding machine mold locking mechanism which comprises a lock sleeve, clamping rings are arranged in the lock sleeve in a symmetrical structure mode, the clamping rings are connected with guide rods used for driving the two clamping rings to move in the radial direction of the lock sleeve, and one end of each guide rod is connected with the corresponding clamping ring in a fixed structure mode. One end of the connecting rod A is connected with the guide rod in a hinged structure mode, the other end of the connecting rod A is provided with a hinged arm in a hinged structure mode, the other end of the hinged arm is located in the lock sleeve, the hinged arm is connected with the lock sleeve in a hinged structure mode, and a connecting rod B is further arranged in the lock sleeve. One end of the connecting rod B is connected with the hinge arm in a hinged structure mode, the other end of the connecting rod B is connected with the telescopic power piece in a hinged structure mode, a pin lock head is further arranged on one side of the lock sleeve, a rear driving structure is not needed, the structure is compact, the occupied space is small, and the dead weight of the two-plate type hollow blow molding machine is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of mold locking devices, in particular to a two-plate hollow blow molding machine mold locking mechanism. BACKGROUND

[0002] The application number of the blow molding machine mold locking device of the company is CN201910359780.1, which comprises a mold locking oil cylinder, a mold locking plug, a mold locking head and a rotating joint. The mold locking oil cylinder is fixedly connected with a movable mold plate on one side of a blow molding machine, the piston rod of the mold locking oil cylinder faces the inner side of the movable mold plate, the plug flange is connected with the front end of the piston rod of the mold locking oil cylinder through a connecting structure, a anti-back-off check plate is arranged in the cavity of the mold locking head, a cross-shaped through hole with a shape and size matched with the anti-back-off head is formed in the middle of the anti-back-off check plate, the rotating joint comprises a joint shaft rotatably connected with a movable mold plate on the other side, the joint shaft penetrates through the movable mold plate, one end of the joint shaft facing the inner side of the movable mold plate is connected with the rear end of the mold locking head through a connecting structure, and the other end of the joint shaft facing the outer side of the movable mold plate is provided with an anti-back-off structure for preventing horizontal displacement of the joint shaft; the joint shaft can be rotated around the central axis of the joint shaft through external force.

[0003] The patent of the application matches the mold locking socket through the rotation of the rack socket chuck, and is connected after being locked after rotation. The rear driving structure occupies a large space and is not suitable for processing and installation. CONTENT OF THE UTILITY MODEL

[0004] To solve the above technical problems, the utility model provides a two-plate hollow blow molding machine mold locking mechanism, and the technical problems solved are that the existing structure is inconvenient to install and occupies a large space. To solve the above technical problems, the utility model adopts the technical scheme that

[0005] A two-plate hollow blow molding machine mold locking mechanism comprises:

[0006] A lock sleeve is provided with a snap ring in a symmetrical structure in the lock sleeve;

[0007] A guide rod is used for driving the two snap rings to move radially along the lock sleeve, one end of the guide rod is connected with the snap ring in a fixed structure, and the other end of the guide rod extends to the outside through the side wall of the lock sleeve;

[0008] A connecting rod A is located outside the lock sleeve, one end of the connecting rod A is connected with the guide rod in a hinged structure;

[0009] A hinged arm is connected with the other end of the connecting rod A in a hinged structure at the outer end of the hinged arm, the other end of the hinged arm is located inside the lock sleeve, and the hinged arm is connected with the lock sleeve in a hinged structure;

[0010] A connecting rod B is located inside the lock sleeve, one end of the connecting rod B is connected with the hinged arm in a hinged structure;

[0011] The telescopic power piece is connected with the other end of the connecting rod B through a hinged structure.

[0012] The pin locking head can be extended into the locking sleeve and fixed by the two clamps.

[0013] Further, the outer wall of the locking sleeve is provided with a hinged block in a fixed structure, and the hinged block is connected with the hinged arm through a hinged structure.

[0014] Further, the outer side of the locking sleeve is fixedly provided with a flange plate.

[0015] Further, a chuck is arranged in the locking sleeve on the inner side of the clamp.

[0016] Further, the telescopic power piece is a gas cylinder, the gas cylinder is connected with the locking sleeve in a fixed structure, a graphite copper sleeve is arranged at the end of the push rod of the gas cylinder, and the graphite copper sleeve is connected with the connecting rod B through a hinged structure.

[0017] Further, a hydraulic cylinder is arranged at the rear end of the pin locking head, and an output shaft of the hydraulic cylinder is connected with the pin locking head in a fixed structure.

[0018] Further, a clamping groove is arranged on the outer periphery of the front end of the pin locking head for clamping the clamp.

[0019] Further, a hinged seat is arranged on the outer part of the guide rod in a fixed structure, and the hinged seat is connected with the connecting rod A through a hinge.

[0020] The beneficial effects of the utility model are that the pin locking head extending into the locking sleeve is locked by the clamp, no driving structure is needed at the rear part, the structure is compact, the occupied space is small, and the self-weight of the two-plate hollow blow molding machine is reduced. DRAWINGS:

[0021] Figure 1 is the schematic diagram of the front view cross section structure of the utility model.

[0022] Figure 2 is the schematic diagram of the three-dimensional local cross section structure of the utility model.

[0023] Figure 3 is the schematic diagram of the structure of the embodiment of the utility model.

[0024] Figure 4 is the schematic diagram of the structure after locking of the utility model.

[0025] IN THE DRAWINGS:

[0026] 1, the locking sleeve, 2, the clamp, 3, the guide rod, 4, the connecting rod A, 5, the hinged arm, 6, the connecting rod B, 7, the telescopic power piece, 8, the pin locking head, 9, the hinged block, 10, the flange plate, 11, the graphite copper sleeve, 12, the clamping groove, 13, the hinged seat, 14, the hydraulic cylinder, 15, the chuck. DETAILED DESCRIPTION:

[0027] For the purpose, technical scheme and advantages of the utility model are clearer, now will refer to the drawings and the following embodiment to the utility model further detailed description, so that the public better grasps the utility model's implementation method, the utility model specific implementation scheme is:

[0028] A two-plate hollow blow molding machine locking mechanism, including the lock bush 1, the lock bush 1 is provided with the snap ring 2 in the symmetrical structure mode, the snap ring 2 is connected with the guide rod 3 for driving two snap rings 2 along the radial movement of the lock bush 1, the guide rod 3 one end is connected with the snap ring 2 in fixed structure mode, the guide rod 3 other end passes through the side wall of the lock bush 1 and extends to the outside, the connecting rod A 4 located at the outside of the lock bush 1, the connecting rod A 4 one end is connected with the guide rod 3 by hinged structure mode, the connecting rod A 4 other end is provided with the articulated arm 5 by hinged structure mode, the articulated arm 5 other end is located in the lock bush 1, and the articulated arm 5 is connected with the lock bush 1 by hinged structure mode, the lock bush 1 is also provided with the connecting rod B 6, the connecting rod B 6 one end is connected with the articulated arm 5 by hinged structure mode, the connecting rod B 6 other end is connected with the telescopic power component 7 by hinged structure mode, the lock bush 1 one side is also provided with the pin lock head 8, the pin lock head 8 can be inserted into the lock bush 1 and be fixed by two snap rings 2, the structure design, without the driving structure of rear part, compact structure, small space occupation, reduce the self-weight of two-plate hollow blow molding machine.

[0029] Need to be explained, the lock bush 1 outer wall is provided with the hinged block 9 in fixed structure mode, the hinged block 9 is connected with the articulated arm 5 by hinged structure mode, the lock bush 1 is connected with the articulated arm 5 by the hinged block 9, and the structure is more stable.

[0030] Need to be explained, the lock bush 1 outside is fixedly provided with the flange plate 10, the lock bush 1 inside in the snap ring 2 is provided with the chuck 15, and the flange plate 10 and the chuck 15 are used to limit the axial position of the snap ring 2.

[0031] Specifically, the telescopic power component 7 is a gas cylinder, the gas cylinder is connected with the lock bush 1 in fixed structure mode, the gas cylinder push rod end is provided with the graphite copper sleeve 11, the graphite copper sleeve 11 is in sliding fit with the lock bush 1, and is connected with the connecting rod B 6 by hinged structure mode, the graphite copper sleeve 11 improves self-lubricating performance, and the graphite copper sleeve 11 is connected with the articulated arm 5 by hinged structure mode.

[0032] Need to be explained, the pin lock head 8 rear end is provided with the hydraulic cylinder 14, the output shaft of the hydraulic cylinder 14 is connected with the pin lock head 8 in fixed structure mode, the pin lock head 8 can be inserted into the lock bush 1 by using the hydraulic cylinder 14, and after locking, the pin lock head 8 is pulled back, to ensure the close connection between the two mold plates.

[0033] Need to be clarified, the pin lock head 8 front end is provided with the clamping groove 12 for clamping the snap ring 2,

[0034] The guide rod 3 is externally provided with a hinged seat 13 in a fixed structure, the hinged seat 13 is hingedly connected with the connecting rod A4, two guide rods 3 are connected by one hinged seat 13, and the clamping ring 2 is prevented from rotating.

[0035] The working principle and working process of the utility model are as follows:

[0036] The gas cylinder 7 is started, the gas cylinder 7 push rod pushes the graphite copper sleeve 11 to the right, the graphite copper sleeve 11 pushes the hinged arm 5 to rotate around the hinge block 9 through the connecting rod B6, and then drives the connecting rod A4 to push the hinged seat 13 to move, the hinged seat 13 converts part of power into the tension of the guide rod 3, and the two clamping rings 2 are opened, when the hollow mold is closed, the pin lock head 8 is pushed by the hydraulic cylinder and enters the inside of the lock sleeve 1, the gas cylinder 9 is reversely pulled, and then the graphite copper sleeve 11 sequentially pulls the connecting rod B6, the hinged arm 5, the connecting rod A4, the hinged seat 13 and the guide rod 3 to close the clamping ring 2 into the clamping groove 12 of the pin lock head 8, at this time, the hydraulic cylinder 14 pulls the pin lock head 8 to the right, and the mold locking action is completed.

[0037] In the description of the utility model, it should be understood that the directions or position relations of the terms "center", "upper", "lower", "left", "right", "front", "back", "lower left", "upper right", "outer", "clockwise", "counterclockwise" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the protection scope of the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Although the utility model is described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of the utility model described herein.

Claims

1. A two-plate hollow blow molding machine locking mechanism, characterized by, include: Lock sleeve (1), with retaining rings (2) arranged symmetrically inside the lock sleeve (1); A guide rod (3) is used to drive the two snap rings (2) to move radially along the lock sleeve (1). One end of the guide rod (3) is connected to the snap rings (2) in a fixed structure, and the other end of the guide rod (3) extends through the side wall of the lock sleeve (1) to the outside. The connecting rod A (4) is located outside the lock sleeve (1), and one end of the connecting rod A (4) is connected to the guide rod (3) by a hinge structure; The hinge arm (5) is connected to the other end of the connecting rod A (4) by a hinge structure, and the other end of the hinge arm (5) is located inside the lock sleeve (1), and the hinge arm (5) is connected to the lock sleeve (1) by a hinge structure. The connecting rod B (6) is located inside the lock sleeve (1), and one end of the connecting rod B (6) is connected to the hinge arm (5) through a hinge structure. Telescopic power component (7) is connected to the other end of connecting rod B (6) by a hinge structure; The pin lock head (8) can be inserted into the lock sleeve (1) and fixed by two retaining rings (2).

2. A two-plate mold locking mechanism for a hollow blow molding machine according to claim 1, characterized in that: The outer wall of the lock sleeve (1) is provided with a hinge block (9) in a fixed structure manner, and the hinge block (9) is connected to the hinge arm (5) in a hinge structure manner.

3. A two-plate mold locking mechanism for a hollow blow molding machine according to claim 1, characterized in that: A flange (10) is fixedly installed on the outside of the lock sleeve (1).

4. A two-plate mold locking mechanism for a hollow blow molding machine according to claim 1, characterized in that: A chuck (15) is provided inside the locking sleeve (1) on the inner side of the chuck (2).

5. A two-plate mold locking mechanism for a hollow blow molding machine according to claim 1, characterized in that: The telescopic power component (7) is a cylinder. The cylinder is connected to the locking sleeve (1) in a fixed structure. The end of the cylinder push rod is provided with a graphite copper sleeve (11). The graphite copper sleeve (11) is connected to the connecting rod B (6) in a hinge structure.

6. A two plate mold locking mechanism for a hollow blow molding machine as defined in claim 1 wherein: A hydraulic cylinder (14) is provided at the rear end of the pin lock head (8), and the output shaft of the hydraulic cylinder (14) is connected to the pin lock head (8) in a fixed structure.

7. A two plate mold locking mechanism for a hollow blow molding machine as defined in claim 6 wherein: The front end of the lock head (8) is provided with a slot (12) for engaging the card ring (2).

8. A two plate mold locking mechanism for a hollow blow molding machine as defined in claim 1 wherein: The guide rod (3) is provided with a hinge seat (13) in a fixed structure on the outside, and the hinge seat (13) is hinged to the connecting rod A (4).

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