Die opening/closing mechanism of thermoforming machine
A thermoforming machine and mold clamping mechanism technology, which is applied in the field of mold opening and closing mechanisms, can solve the problems of motor speed limitation, easy wear of ball screw, and affecting the service life of the machine, and achieve the effect of long life and high efficiency
Inactive Publication Date: 2011-10-12
SHANTOU UNIV
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Problems solved by technology
[0005] The current electric mold opening and closing mechanism mostly uses a servo motor to drive the ball screw, which drives the toggle linkage mechanism to realize its mold opening and closing. The up and down movement of the worktable needs to be realized through the positive and negative rotation of the servo motor. , the speed of the motor is limited, which affects the high-speed operation of the machine, and the ball screw is also easy to wear, which affects the service life of the machine
Method used
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[0024] Such as Figure 1-4 As shown, the cam mechanism in this preferred embodiment includes support base 2, cam 3, guide slider 4, key 5, bolt 6, gear shaft 7, cylindrical roller 8, push rod 9, gear 22, rolling bearing 23 and Key 24 and so on.
[0025] The gear shaft 7 is fixed on the support seat 2 by the cylindrical roller 8, and the support seat 2 is fixed on the fixed template 1 of the thermoforming machine by bolts (not shown in the figure), so that the cam mechanism is installed on the thermoforming machine. The servo motor drives the reducer (not shown in the figure), drives the gear shaft 7 to rotate through the gear 22 and the key 24, the front end of the gear shaft 7 is connected with the guide slider 4 through the key 5, and drives the guide slider 4 to rotate, and the guide slider There is a cylindrical roller 8 in 4, and the cylindrical roller 8 is composed of three parts, the middle of which is in contact with the guide slider 4 and can move along the guide gro...
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The invention relates to a die opening / closing mechanism of a thermoforming machine. The die opening / closing mechanism comprises a cam mechanism and a crankshaft connecting rod mechanism, wherein the cam mechanism comprises a servo driving mechanism, a bearing mechanism and a cam moving mechanism; the servo driving mechanism is used for driving a gear on a gear shaft to rotate through a servo motor; the bearing mechanism is used for bearing the gear shaft and the cam moving mechanism through a bearing seat and a rolling bearing and is fixed on a fixed template of the thermoforming machine; and the cam moving mechanism comprises a cam, a cylindrical roller, a guide sliding block, a push rod and the like, the gear shaft is used for driving the guide sliding block to rotate, the cylindrical roller is driven by the guide sliding block to move along the contour of the cam and to drive the push rod, so that the push rod swings in a reciprocating manner to provide power for the reciprocating movement of the crankshaft connecting rod mechanism. The die opening / closing mechanism provided by the invention adopts a brand new driving means; the cam connecting rod mechanism is driven by the servo motor, and the die closing operation is realized; the die opening / closing mechanism has the advantages of an electric type die opening / closing mechanism; and the servo motor has the advantages of continuous movement, high efficiency and long service life.
Description
technical field [0001] The invention relates to a mold opening and closing mechanism, in particular to a mold opening and closing mechanism of a thermoforming machine. Background technique [0002] The opening and closing mechanism of the thermoforming machine can be divided into three types according to its action mode: hydraulic type, hydraulic-mechanical type and electric type. The transmission modes of the hydraulic mold opening and closing mechanism include single-cylinder direct pressure type, liquid-filled type, pressurized type, stable pressure type, two-platen direct pressure type, etc. It relies on the pressure of the liquid to directly lock the mold. When the pressure of the liquid is released, the clamping force also disappears. The hydraulic mold opening and closing mechanism has many unique advantages in the manufacture of products with precise molding and complex shapes. The hydraulic mold opening and closing mechanism can realize a large mold opening and cl...
Claims
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Inventor 陈少克
Owner SHANTOU UNIV