CN210759051U

CN210759051U - Mould driving and self-locking structure opens and shuts

Info

Publication number: CN210759051U
Application number: CN201920836464.4U
Authority: CN
Inventors: 闻申桂; 董整胜
Original assignee: Hangzhou Gaofu Machinery Manufacturing Co ltd
Current assignee: Hangzhou Gaofu Machinery Manufacturing Co ltd
Priority date: 2019-06-04
Filing date: 2019-06-04
Publication date: 2020-06-16
Anticipated expiration: 2029-06-04

Abstract

The utility model discloses a mould opening and closing driving and self-locking structure, which comprises a movable template, a fixed template, a crank arm component, a servo motor, a gear box and a transmission shaft; the back of fixed die plate is located to servo motor, and the turning arm subassembly is equipped with a plurality of groups, and symmetric distribution is in the both sides of fixed die plate, and every side respectively is driven by a servo motor, and every group turning arm subassembly includes screw thread pull rod, turning arm, rocking arm, and screw thread pull rod one end is fixed with movable mould board threaded connection, and the other end is articulated with turning arm one end, and the turning arm other end is articulated with rocking arm one end, and the rocking arm other end is fixed with a transmission shaft, and the transmission shaft is rotated by servo motor drive gear box. The functioning speed of compound die is opened and shut by servo motor speed governing control the utility model discloses a structure can realize adopting electric drive can satisfy the thrust demand, adopts special structural design can reach the purpose of mode locking simultaneously.

Description

Mould driving and self-locking structure opens and shuts

Technical Field

The utility model belongs to the technical field of steam foaming make-up machine, injection moulding machine, a mould drive and auto-lock structure open and shut is related to, is applicable to all steam foaming, injection moulding equipment.

Background

At present, almost all steam foaming, injection molding and forming equipment use a hydraulic system in mold opening and closing, the advantages of the hydraulic system are obvious, hydraulic driving thrust is large, speed regulation is convenient, but the system cost is high, reliability is poor, viscosity of hydraulic oil is increased in winter at low temperature, oil supply quantity and speed of an actuating mechanism are uneven, and maintenance and pressure maintaining are troublesome. When the temperature of the hydraulic station rises, an oil distribution cooler is needed, the hydraulic oil contains air, the oil cylinder shakes during working, and the molding workshop is polluted due to the faults of the hydraulic station and the oil cylinder.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art not enough, provide a mould drive and auto-lock structure open and shut, can realize adopting electric drive can satisfy the thrust demand, adopt special structural design can reach the purpose of mode locking simultaneously.

The utility model adopts the technical proposal that:

a mold opening and closing driving and self-locking structure comprises a movable template, a fixed template, a crank arm assembly, a servo motor and a transmission shaft; the back of fixed die plate is located to servo motor, and the turning arm subassembly is equipped with a plurality of groups, and symmetric distribution is in the both sides of fixed die plate, and every side respectively is driven by a servo motor, and every group turning arm subassembly includes screw thread pull rod, turning arm, rocking arm, and screw thread pull rod one end is fixed with removal mould threaded connection, and the other end is articulated with turning arm one end, and the turning arm other end is articulated with rocking arm one end, and the rocking arm other end is fixed with a transmission shaft, and the transmission shaft is rotated by servo motor drive.

In the above technical solution, the crank arm assemblies are further provided with four groups.

Furthermore, a speed reducer is arranged on the servo motor.

Furthermore, the power output of the servo motor is connected with the transmission shaft through a coupler.

Furthermore, the fixed template is provided with a bearing seat, and the transmission shaft is connected with the bearing seat through a bearing.

Furthermore, a grease nozzle is arranged at the joint of the crank arm and the rocker arm.

The utility model has the advantages that:

the utility model discloses a turning arm subassembly can realize that the movable mould board opens and shuts the mould drive, and final closed locking, and the mould process that just opens and shuts adopts electric drive to accomplish.

Drawings

FIG. 1 is a schematic diagram of a specific structure of the present invention;

fig. 2 is a schematic structural diagram of the crank arm assembly of the present invention;

FIG. 3 is a view of the crank arm assembly in a maximum open position;

FIG. 4 is a schematic view of the rotational movement of the rocker arm;

FIG. 5 is a state view of the rocker arm at 90 degrees to the nut pull rod;

FIG. 6 is a schematic view of continued rotational movement of the rocker arm;

FIG. 7 is a view of the crank arm assembly in a shortest state;

FIG. 8 is a graph showing the variation of the locking force from the mold opening state to the mold closing state;

FIG. 9 is a view showing the mold opened;

FIG. 10 is a view of the mold in a half-open state;

fig. 11 is a mold closed deadlocked state diagram.

Wherein: the mold comprises a movable mold 1, a fixed mold 2, a template 3, a crank arm assembly 4, a speed reducer 5, a servo motor 6, a coupler 7, a transmission shaft 8, a bearing seat 3-1, a threaded pull rod 3-2, a connecting shaft 3-3, a crank arm 3-4, a screw 3-5, a rocker arm 3-6, a snap spring 3-7, a gasket 3-8, a grease nipple 3-9, and a crank arm support sleeve 3-10 nut.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 1 and 2, for a specific implementation manner of the open/close die driving and self-locking structure of the present invention, this example is only used for explaining the scheme of the present invention, and is not a limitation of the present invention. This compound die drive and self-locking structure includes: the device comprises a movable template 1, a fixed template 2, a crank arm component 3, a gear box, a servo motor 5 and a transmission shaft 7; two servo motors 5 are arranged on the back of the fixed template 2, four groups of crank arm assemblies 3 are arranged, each two groups of crank arm assemblies are symmetrically distributed on two sides of the fixed template 2, each side is driven by one servo motor 5, each group of crank arm assembly 3 comprises a threaded pull rod 3-1, a crank arm 3-3 and a rocker arm 3-5, one end of the threaded pull rod 3-1 is fixedly connected with the movable mold 1 in a threaded mode, the other end of the threaded pull rod is hinged with one end of the crank arm 3-3, the other end of the crank arm 3-3 is hinged with one end of the rocker arm 3-5, the other end of the rocker arm 3-5 is fixed with a transmission shaft 7, one end of the transmission shaft 7 is connected with a bearing seat 8 fixed on the fixed template through a bearing, the other end of the transmission shaft is connected with an output.

As shown in fig. 3-7, the specific working process and principle of the mold opening and closing driving and self-locking structure from mold opening to mold closing are as follows:

a is shown in figure 3, the rocker arm 3-5 and the threaded pull rod 3-1 are in a straight line state, and the direction of the rocker arm is towards the threaded pull rod 3-1 when the rocker arm is seen from the transmission shaft connecting end to the crank arm connecting end, and the mould is in an open state at the moment, as shown in figure 9. The maximum distance can be adjusted and controlled by the threaded tie rod 3-1.

B, as shown in figure 4, the rocker arm 3-5 rotates to act on the crank arm 3-3 to pull the threaded pull rod 3-1, so that the movable die 1 moves.

And C, as shown in fig. 5, when the rocker arm 3-5 continuously rotates until the rocker arm and the threaded pull rod 3-1 form an angle of 90 degrees, the stroke of the mold is just half, and at the moment, the mold locking structure is in the minimum state, and the mold locking is only achieved by the amplification factor of the brake of the servo motor 5 through the speed reducer 4. Typically, the mold will not stop in application at this point. As shown in fig. 10.

D, as shown in fig. 6, the rocker arms 3-5 turn through 90 degrees to continue rotating to do work, and the mold is closed.

E in figure 7, the rocker arm 3-5 is in line with the threaded tie rod 3-1 and is directed opposite the threaded tie rod 3-1, the mould being closed, figure 11. The mold clamping force is maximized and depends on the rigidity of the material.

During the movement of the mold, the mold clamping force path is in a U shape (as shown in FIG. 8), and is the largest when the mold is fully opened and closed.

Claims

1. A mold opening and closing driving and self-locking structure is characterized by comprising a movable template (1), a fixed template (2), a crank arm assembly (3), a servo motor (5) and a transmission shaft (7); the back of fixed die plate (2) is located in servo motor (5), turning arm subassembly (3) are equipped with a plurality of groups, the symmetric distribution is in the both sides of fixed die plate (2), each side respectively is driven by a servo motor, every group turning arm subassembly (3) include screw rod (3-1), turning arm (3-3), rocking arm (3-5), screw rod (3-1) one end is fixed with removal mould 1 threaded connection, the other end is articulated with turning arm (3-3) one end, the other end of turning arm (3-3) is articulated with rocking arm (3-5) one end, the rocking arm (3-5) other end is fixed with a transmission shaft (7), transmission shaft (7) are rotated by servo motor (5) drive.

2. The mold opening and closing driving and self-locking structure as claimed in claim 1, wherein the crank arm assemblies (3) are four in number.

3. The mold opening and closing driving and self-locking structure as claimed in claim 1, wherein the servo motor (5) is provided with a speed reducer (4).

4. The mold opening and closing driving and self-locking structure as claimed in claim 1, wherein the power output of the servo motor (5) is connected with the transmission shaft (7) through a coupling (6).

5. The mold opening and closing driving and self-locking structure as claimed in claim 1, wherein the fixed mold plate (2) is provided with a bearing seat (8), and the transmission shaft (7) is connected with the bearing seat (8) through a bearing.

6. The mold opening and closing driving and self-locking structure as claimed in claim 1, wherein a grease nipple (3-8) is installed at the joint of the crank arm (3-3) and the rocker arm (3-5).