KR0132911Y1 - Controlling apparatus for injection cylinder of semiconductor-chip molding mould - Google Patents

Abstract

The present invention relates to an injection cylinder drive control apparatus for a press mold that can realize factory automation by changing the position of the limit switch for controlling the drive shape of the injection cylinder in a press mold.

This is a press mold in which the driving type of the injection cylinder is deformed according to the position change of the limit switch, and is composed of a motor, a lead screw, a guide rod, and a frame so that the limit switch is electrically changed in position. do.

Description

Injection cylinder drive control device of press mold

1 is a graph showing the driving mode of a typical injection cylinder.

2 is a view illustrating an embodiment of a press mold apparatus to which the present invention is applied.

3 and 4 are a front view and a side view of the injection cylinder drive control device according to the present invention.

* Explanation of symbols for main parts of the drawings

10: molding part 11, 12: upper and lower mold

20: main body 30: material press

31: injection cylinder 32: stationary motor

33: lead screw 34: limit switch

35: guide rod 36: frame

37: limit cap

The present invention is a section set by the grounding operation between the limit switch and the cam during the lifting and lowering operation of the injection cylinder for press-fitting the material into the molding space of the press mold (the section from the beginning of injection to just before the pressing operation, the material pressing operation section Of the press mold that can increase the productivity of the product by controlling the injection speed of the injection cylinder at high speed or at a low speed for each section from the completion of the material injection operation to the original position (injection starting point). The injection cylinder drive control device, and more specifically, it is expected to simplify the position change operation of the limit switch and enhance the competitiveness of the product by enabling the factory automation by varying the position of the limit switch using a transmission device. The present invention relates to an injection cylinder drive control apparatus for a press mold.

In general, in the press mold, the injection cylinder serves to press-fit the uniformly distributed material in the process of supplying a material such as a thermosetting resin into the molding space formed inside the upper and lower molds of the molding part.

The driving form of the injection cylinder having such a function is, in the material injection process, as shown in FIG. 1 of the drawing, in a section (a) from the initial injection point to just before the injection operation (state before the injection operation of the material). If possible, keep the state of high speed as low as possible, and at the beginning of material press (the cylinder plunger is grounded to the material), in the material press-in completion section (b), keep the low speed state for press-fitting the material. From the initial injection point time period (c) is set to have a state in which the plunger of the injection cylinder is raised at a high speed.

As a result, the cylinder operates at a low speed only in the actual material press section, and maintains a high speed in the section other than the material press press operation, so that the injection work time can be efficiently managed and utilized, thereby increasing the productivity of the molded product per work hour. will be.

The driving shape control of the injection mold of the press mold has been modified by changing the position of the limit switch for driving shape control disposed on the mold.

That is, the holding time for each section has been modified.

However, the fixed position variable operation of the limit switch as described above was to adjust the position manually by the operator went up to the mold according to the product specification and the type of material of the molded product at the initial injection time.

Therefore, the work was cumbersome and inconvenient, not only accurate adjustment was possible, and there was a problem in safety at work.

Therefore, the present invention has been devised to solve the above-mentioned problems, and the present invention has a press mold that can realize factory automation by changing the position of the limit switch for controlling the driving shape of the injection cylinder in a press mold. The purpose of the present invention is to provide an injection cylinder drive control device.

A characteristic technical element of the present invention for achieving this object is the limit of the combination of the motor, lead screw, guide rod, frame in the press mold in which the driving form of the injection cylinder is deformed according to the position change of the limit switch. An injection cylinder drive control device of a press mold, characterized by a configuration in which the switch is electrically changed in position.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a view illustrating an embodiment of a press mold apparatus to which the present invention is applied, and includes a molding unit 10 for molding a molded article substantially; A main body 20 in which hydraulic and electric devices are embedded to control driving of the molding part 10; It is a structure combined with the material injection | pouring part 30 which consists of the injection cylinder 31 which press-fits the material supplied with respect to this shaping | molding part 10. FIG.

3 and 4 are front and side views of the injection cylinder drive type control means corresponding to the material press-fitting part according to the present invention, and includes a stationary motor 32, a lead screw 33, a limit switch 34, a guide rod. 35, the frame 36, and the like.

As shown in FIG. 1, the structure of the press mold includes: a molding part 10 composed of upper and lower molds 11 and 12 for forming a molded article substantially; A main body 20 incorporating hydraulic and electrical devices for controlling the operation of the mold and the power supply for the entire mold and the power for the coupling and detachment of the jaw portion 10; An injection cylinder 31 press-fitted when supplying a synthetic resin material into the molding space portion formed in the upper and lower molds 11 and 12 constituting the molding part 10, and controls the driving shape of the injection cylinder 31. It is largely comprised from the raw material press part 30 which consists of a limit switch 34 and other control switches.

In the conventional press mold having such a configuration, the drive control device of the injection cylinder 31 corresponding to the material injection portion 30 according to the present invention is selected by the operator, as shown in FIGS. 3 and 4. A forward and reverse motor 32 corresponding to a driving means driven by forward rotation or reverse rotation by the; A lead screw 33 which receives the driving force of the stationary motor 32 and is rotated forward or reverse; A limit switch which is screwed to the lead screw 33 and changes its position up and down according to the rotation direction of the lead screw 33, and controls the driving form of the injection cylinder 31 by the limit cam 37 and the ground ( 34) and the guide rod for guiding the limit switch 34 in a stable state in which the limit switch 34 is flow-suppressed from front to back, left and right in the process of changing the upper and lower positions according to the rotation direction of the lead screw 33. 35; Combining the frame (motor, lead screw, guide rod) to the above-mentioned fixed position to support the limit switch 34 is configured to be electrically variable position.

Here, the drive control of the stationary motor 32 can be performed by wire or wireless (remote control), the lead screw 33 is in the form of rotating together with the stationary motor 32.

The limit cam 37 is coupled to the injection cylinder 31 via a limit switch 34 and a fixing stand for grounding, and the limit cam 37 has a plurality of control switches capable of controlling the driving form of the injection cylinder 31. Are connected.

The operation relationship of the vertical press mold according to the present invention configured as described above is to move the lower mold 12 of the forming portion 10 upward by the hydraulic device mounted into the main body 20, the upper and lower mold ( 11) (12) is molded, the material is put into the molding space formed and maintained in the forming portion 10 by the operation of the material pressing portion 30 is provided with the injection cylinder 31 for introducing the material in this state This injected material is molded by heat.

In addition, the takeout operation of the molded product is performed in the reverse order of the molding operation. (Here, the operating relationship (product forming and ejection process) of the press mold is a public notice and the detailed description thereof is omitted.

On the other hand, to change the drive type of the injection cylinder 31 corresponding to the material press portion 30 in the press mold having the above operating relationship, the operator is a remote or wired switch (not shown in the figure) The ON / OFF switch for driving the forward / reverse motor 32 in the middle is turned on. By the ON operation of the forward rotation drive switch, the motor 32 of the drive means fastened to the upper part of the frame 36 is forward driven (wherein the limit switch 34 moves downward when the motor 32 is forward driven). Then, the limit screw 34 screwed into the lead screw 33 as the lead screw 33 connected to the motor 32 through the reduction means (not shown) is rotated forward with the motor 32. ) Fixed position moves upward.

On the contrary, when the reverse rotation drive switch is turned on, the motor 32 is reversely driven, and as the lead screw 33 connected thereto is reversely driven, the screwed limit switch 34 is moved downward. To lose.

By moving the limit switch 34 as described above, the distance (interval) between the limit switch 34 and the limit cam 37 can be varied, so that the driving form of the injection cylinder 31 can be controlled.

At this time, in the process of moving the limit switch 34 up or down, the limit switch 34 is coupled so as to be guided to the guide rod 35, the limit switch 34 is raised and lowered in a stable state without flow back and forth, left and right Is moved.

As can be seen from the above, the present invention was designed to realize factory automation by improving the position change of the limit switch to an electric structure in a press mold in which the driving form of the injection cylinder is controlled according to the operation of the limit switch and the limit cam. In addition, workability and work safety can be improved, and the composition (fine adjustment) can be easily made without going to a mold as in the prior art, thereby improving the quality of the molded product and improving the product competitiveness.

Claims (1)

In the press mold in which the drive shape control of the injection cylinder 31 is deformed according to the positional change of the limit switch 34, the forward / reverse motor 32 corresponding to the drive means driven forward or reverse by the operator's selection. Wow; A lead screw 33 which receives the driving force of the stationary motor 32 and is rotated forward or reverse; The switch is screwed to the lead screw 33, the position is changed up and down in accordance with the rotation direction of the lead screw 33, the limit switch for controlling the driving form of the injection cylinder 31 by the limit cam 37 and the ground ( 34) and a guide rod for guiding the limit switch 34 in a stable state by being flow-suppressed from front to back, left and right in the process of changing the upper and lower positions of the limit switch 34 according to the rotation direction of the lead screw 33. 35; The injection mold drive of the press mold characterized in that it is combined with the frame 36 which fixes and supports the above-mentioned parts (motor, lead screw, guide rod) so that the limit switch 34 can be electrically changed in position. controller.