KR910002495Y1 - Floating prevention device for compression - Google Patents

Abstract

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Description

Central mold flow prevention device of rubber press mold automatic switch

1 is a side view of the installation state of the present article.

2 is a plan view of the installation state of the present article.

3 is a front view of the actual state of the present article.

4 is a partial cutout view of this paper.

5 is a plan view partially cut sidebar in the present article.

6 is a plan view partially showing the state that the mold is moved by the operation of the present proposal.

7 is a partial cross-sectional view of the present proposal.

Figure 8 is a partially cutaway longitudinal cross-sectional view illustrating a state in which the center mold is raised by the piston in this article.

9 is a partially cutaway cross-sectional view of the connection between the moving plate and the operation of the present invention.

Figure 10 is a partially cutaway side cross-sectional view illustrating the operating state of the present article.

11 is a main part side view illustrating a state in which the upper mold and the center mold are separated and rotated by the operation of the present invention.

(A) and (b) of FIG. 12 are the cross-sectional views which expand and show the "A" part of FIG. 5 in which the metal mold | die is fixed by the latching piece.

FIG. 13 is a cross-sectional view of cutting line B-B 'of FIG.

14 is a partially enlarged view illustrating a coupling state of a mold and a holder.

Figure 15 is a partial cross-sectional side view of this draft.

FIG. 16 and FIG. 17 are main parts operating states of the present disclosure seen from the direction "X" of FIG.

* Explanation of symbols for main parts of the drawings

1: molding press main body E: upper mold

F: Center mold G: Lower mold

8: rail 10: mold breaker

11: roller 13: base plate

14 substrate 16 intermediate plate

18: top plate 20: vertical wall

24: inner vertical wall 30: upper holder

31, 36: lever 32, 37: rod

35: middle holder 35a: fixed rod

40: lower holder 47: support tube

48: spring 49: shaft

50: Between operations 55: Freud

56a: vertical groove 56b: guide groove

60: moving plate 62: operating lever

64: pivoting lever 67: screw

70: hook pin 75: fixed interval

75: intermittent surface 76: shaft pin

77: compression spring 80, 81: release piece

90: latching lever 90a: locking surface

90b: cam bar 90c: curved portion

91: fixed shaft pin 92: cam lever

In this press, the press for hot pressing for the molding process of rubber, the upper mold and the automatic press The center mold is separated or it is designed to prevent the flow of the center mold twisted by the pressing force.

The rubber molding press used in the present time is to separate the upper and lower molds artificially by the operator, and then to place the rubber member to be molded in the mold, and then to assemble the mold to the correct position.

In order to plastically deform the rubber member, the mold is heated to a temperature at which the rubber can be plastically deformed and then pressed into a press to be plastically deformed into a product required by the consumer.

Therefore, during the process of artificially disassembling the press mold, which is hot, it is disassembled immediately before pressing, and then the rubber processing product is removed from the mold after heating and pressing. In addition to the frequent burns, due to the phenomenon in which the worker avoids disassembling and disassembling the mold, normal work cannot be performed and there is a problem that the worker is replaced by an unskilled worker at any time.

Therefore, I have designed an automatic switchgear that most operations are automatically performed without the need for an operator, as filed in the previous application (Domestic Patent Application No. 88-9283). When the upper mold and the central mold are disassembled to separate the finished product after heat-pressing with strong force between the center mold and the lower mold, the force is applied to raise the center mold along the upper mold by the surface pressing force. There was a defect that the intermediate holder was distorted or flow occurred, which prevented the smooth operation.

The present invention has been devised to solve such drawbacks, which will be described in detail with reference to the accompanying drawings.

The hydraulic piston 2 is vertically operated at the lower part of the molding press main body 1 to operate the rubber member (not shown) by pressing the mold C between the upper fixing plate 3 and the pressing plate 4 vertically. According to the internal shape of the upper mold (E), the center mold (F), the lower mold (G) to be separated into the finished product is heat-pressed.

Heat wires (D) are wired inside the upper fixing plate (3) and the platen (4) so that the rubber member is always heated to a constant temperature, thereby enabling plastic deformation.

This three-stage separation mold (C) is mainly used to finish the sole of the footwear, the structure of the molding press body (1) is the same as already known in the operation is made the same.

Therefore, when the hydraulic piston (2) is operated once, the three molds (C) placed on one molding press main body (1) are simultaneously pressed and the hydraulic piston (2) is completed again after completing the rubber molding product. This mold is retracted and each mold C is separated at a predetermined interval as shown in FIG.

Grooves 5 and 6 are dug at both ends of the upper mold E and the central mold F, which form the mold C, and fixing holes 7 'to the front of the lower mold G. The fixed piece 7 which is dug in this horizontal direction is fixed.

The molding press main body 1 having the structure as described above is connected to two to four units, and the rail 8 is installed on the ground at the front of the molding press main body 1 so that the mold opening and closing unit 10 is formed by the guide of the rail 8. In front of 1), it moves left and right.

The driving motor M is fixedly installed at one side lower end of the mold opening and closing machine 10, and the chain 11 as the chain 9 is connected to the sprockets 13 formed on the central shaft 12 in a state in which gears are coupled to the driving motor ( When M) is driven by an electrical signal, the sprocket 13 'rotates the central axis 12 as a power transmission of the chain 9 so that the roller 11 is left on the rail 8 to the required position in the rotational direction. In other words, the right hand movement is possible.

The first cylinder P ₁ is fixed to the bottom plate 13 in the center of the mold opening and closing device 10, and the substrate 14 positioned as the end surface of the piston moves up and down, and both sides of the bottom plate 13 are moved. The guide 15 is fixed vertically to guide the up and down movement of the substrate 14.

On both sides of the substrate 14, as shown in FIGS. 7 to 8, two second cylinders P ₂ are provided on the bottom of the substrate 14 so that the intermediate plate 16 reciprocates the piston. It is possible to operate up and down in accordance with the movement, and on both sides of the other guide 17 is fixed to the substrate 14 and then the third cylinder (P ₃ ) is fixed to the substrate 14 by the top plate ( When operating the upper and lower 18), the intermediate plate 16 was made to move up and down smoothly by the guide of the guide 17 to the operation of the upper plate 18.

In the position in contact with the guides 15 and 17, the bush 19 is installed on the upper plate 18, the intermediate plate 16, and the substrate 14 to smooth the guide of the reciprocating motion.

Vertical walls 20 are symmetrically fixed to both sides of the intermediate plate 16 to operate the upper and lower sides with the intermediate plate 16, and rotate the upper holder 30 about the center pin 21 at the upper end thereof. Make it as possible as possible.

A lever 31 is located at an intermediate position of the upper holder 30 immersed in the center pin 21 and connected to the rod 32, and the middle bent portion of the rod 32 is located on the vertical wall 20. ) Is built.

Circular protrusions 33 protrude from the lower end of the rod 32 to face inward.

The inner vertical wall 24 is also fixed to both sides of the upper plate 18, almost the same as the intermediate plate 16, and the intermediate holder 35 is flushed with the center pin 25 at the upper portion thereof. 37 is connected, and another circular protrusion 38 protrudes from the outside of the rod 37 in a state in which the intermediate bending portion of the rod 37 is pinned to the inner vertical wall 24 by the pin 26.

The sidewalls 39 are fixedly installed on the substrate 14 on the front and rear surfaces of the mold opening and closing machine 10. The posts 45 and 46 are formed in two rows between the sidewalls in the longitudinal direction, so that the upper posts 45 are operated during the operation. The movement of the 50 is guided, and the lower post 46 guides the movement of the plate 55.

The fourth cylinder P ₄ is fixedly installed between the side walls 39 of the front side to the center of the plate 55 to operate the plate 55 back and forth, and the unit wall on both sides, that is, the vertical wall. An intermittent section 56 is fixedly installed between the 20 and the inner vertical wall 24.

The intermittent section 56 is dug outwardly as the vertical grooves 56a, and further inside the guide grooves 56b are vertically long in the position slightly shifted from the vertical grooves 56a so that the rods 32 and 37 are vertically extended. When the circular projections 33, 38 of the upper and lower levers (31), 36 and the rods (32) and (37) are rotated back and forth while being fitted in the vertical groove (56a) and the guide groove (56b). 30) and the intermediate holder 35 serves to rotate in a state as illustrated in FIG.

The operating section 50 guided to the upper post 45 has a nut section 51 formed at the center of the bottom thereof, and the power of the motor M 'fixed by the bracket 65 inside the side wall 39 at the rear side. As the chain 66 is driven as the screw 67 is rotated between the operation 50 is moved back and forth along the direction of the row in the longitudinal direction.

A moving plate 60 is positioned on the upper surface of the operating rod 50 so that several shafts 49 may be inserted into the support tube 47 to be elastically installed by the spring 48, and the operating plate 50 and the movable plate ( In the center between the 60 and the fifth cylinder (P ₅ ) is positioned to move the moving plate 60, the fifth cylinder (P ₅ ) is to apply the external force only to raise the piston by the single-speed driving and restore Since the external force is not applied to the bar, the reason is that the interval between the operation 50 and the moving plate 60 is narrow, so that the operation length that the cylinder can be reciprocated is insufficient, so that air or When the piston of the fifth cylinder P ₅ is raised by hydraulic pressure, the moving plate 60 is moved upward, and then restored, the hydraulic pressure or air pressure is removed to return to the original position by the elasticity of the spring 48.

As described above, when the screw 67 is rotated and the operation 50 is moved, the shaft bar 49 and the support tube 47 are assembled and connected, and the moving plate 60 moves forward and backward together.

As illustrated in FIG. 9, the central shaft 61 is assembled to the upper portion of the movable plate 60 to keep the central portion of the operating lever 62, and to the left of the operating lever 62, a guide pin ( 63) is inserted and another central axis 61 'is " The center of the pivoting lever 64 is bent in a shape so as to interlock the operating lever 62 and the pivoting lever 64.

Then, the hook pin 70 is assembled to the upper side to the left side of the rotation lever 64, and the head of the circular bolt 71 is moved to the right end while the circular bolt 71 is fastened by the nut 72. It is located in the long hole (60 ') is gilded horizontally to the plate (60) is to be able to move left and right along the long hole (60') when the rotation lever 64 is operated.

The lower holder 40 is fixedly installed in the longitudinal direction on both sides of the side wall 39 positioned in the front and rear.

The front shape of each of the molds E, F, and G divided into upper, middle, and lower portions has a left end shape of the upper mold E. The shape of the left end of the center mold (F) "And also the left end shape of the lower mold (G) is a relatively inner bottom surface of the center mold (F)" "Because it is shaped" Each of the upper holder 30, the intermediate holder 35, and the lower holder 40 positioned in the lower portion thereof may be fitted in the same state as shown in FIG.

Fixing rods 35a protrude integrally at both ends of the intermediate holder 35 supporting the center mold F, and the latch lever 90 held on the fixed shaft pin 91 to the outside of the inner vertical wall 24. When the middle mold (F) and the upper mold (E) are assembled in the lowered state when the fixing rod (35a) is caught on the lower end of the locking surface (90a) of the locking lever 90 when the upper mold (E) is raised The central mold F was prevented from being raised together in close contact with the surface pressure.

And when the center mold (F) is to rise, the inner vertical wall (24) is raised so that at this time is fixed to the side wall (39) of the front cam bar (92) is integrally formed on the lower portion of the latch lever (90) by the cam lever ( 90b) is in contact with the locking lever 90 is rotated around the fixed shaft pin (91) when the locking rod (35a) position is shifted from the position (90a), the intermediate holder 35 and the center mold (F) can be opened and closed. It was forever.

The operational state of this paper is explained as follows.

First, the hydraulic piston 2 of the molding press main body 1 is operated, and when the rubber product is molded and the hydraulic piston 2 is returned to its original position, as shown in FIG. The mold opener 10 is moved to the front of the molding press main body 1 after the work is completed.

The movement of the mold opening and closing machine 10 is rotated by the driving motor M, and the operation is already set in the automatic control box (not shown) since the roller 11 can be moved left and right at the correct position by the guide of the rail 8. When the electrical signal is applied to the drive motor (M) in accordance with the completion time is to stop again after moving the mold opener (10).

After returning after molding the rubber product, each mold (C) is in the original position at a predetermined interval as illustrated in FIG. 1 of the accompanying drawings, so that the hanger pin 70 of the mold switch 10 has three stages. It is located in the lower part of the metal mold | die C located in the lowest stage in (C).

At this time, since the hook pin 70 is located under the fixing hole 7 'of the fixing piece 7 exposed to the front from the lower mold G, the fifth cylinder P ₅ is raised in this state. 70 is fitted into the fixing hole 7 '.

When the motor (M ') is rotated by the electrical signal sent from the automatic control box while the rotating lever (64), the hook pin (70), and the lower mold (G) are connected to the moving plate (60). When power is transmitted through 66, the screw 67 is rotated at a constant speed so that the operating section 50 in the direction of screwing progress of the knuckle rod 51 is shown at the position of the solid line as shown in FIG. It will be transferred to the position as represented by the virtual line.

When the moving plate 60 is raised by a fifth cylinder P ₅ from the operating period 50 by a predetermined distance, the shaft bar 49 compresses the spring 48 and the operating plate 50 and the moving plate 60. In accordance with the support, the movement between the operation 50 and the movement of the moving plate 60 or the right to move, and also the operating lever 62 and the rotation lever 64 which is located above the moving plate 60 The lower mold (G) is to be moved together in a fixed state.

At this time, the guide pin 63 assembled at the left end of the operating lever 62 is always fitted to the guide hole 69 'of the guide plate 69 fixed to the side wall 39 in the longitudinal direction. Guide pin 63 is moved along 69 ', At the position of the cam bent portion 69a in the form of a central axis that was formed in the center of the moving plate 60 when the guide pin 63 gradually changed its position to the left outer side for the cam bent portion 69a ( The operating lever 62 is slowly rotated about 61 and rotates the pivoting lever 64 at the same time.

As illustrated in FIG. 5, the operation lever 62 and the rotation lever 64 are " "In the state positioned in the form, they overlap horizontally with each other via the cam bent portion 69a, and then reversely gradually as illustrated by the imaginary line in FIG. "The process of deforming to the mold is to move the mold (C) at a distance greater than the moving range between the operation 50 and the moving plate 60.

At this time, the long hole (60 ′) which is laterally drilled on the moving plate (60) guides the circular bolt (71) to the left and right flow by the positional deformation of the rotation lever (64), and the guide pin (63) is vertical. Part of the position is moved to the cam bent portion (69a) of the left side from the end of the movement and the position of the rotation lever 64 and the operating lever 62 is made to perform the work delay time or a large load during operation It has the effect of reducing the operating time by preventing. When the mold C is moved by the above method, the upper, middle, and lower molds E, F, and G of the upper, middle, and lower portions of the upper holder 30 and the intermediate holder are in a state as illustrated in FIG. Then, the moving plate is stopped after being moved along the recessed groove of the lower holder 40 and the fifth cylinder P ₅ which is raising the moving plate 60 stops operation to remove the external force. Hanging pin (70) in the fixed hole (7 ') at the moment when the movable plate (60) is lowered to its original position by the elasticity of the spring (48), which is elastically compressed between the support pipe on the outer circumferential surface of the shaft bar (49) of the 60) This separation is performed so as to be independent of the mold C and the moving plate 60. In this state, the screw 67 which moves the moving plate 60 together with the operation 50 moves the mold C. After completely moving, the motor stops the moving operation by turning the motor M 'to power off.

Since the mold C moved along each holder is in a compressed state, the second cylinder P ₂ fixed to the bottom surface of the substrate 14 is moved forward by air pressure (or hydraulic pressure) to separate them. As the tip exerts an external force to raise the intermediate plate 16, the intermediate plate 16 and the vertical wall 20 fixed to both sides by guides of the guide 17 are shown as virtual lines in FIG. As described above, the upper holder 30 is raised together with the lever 31 and the rod 32 at the same time.

As the upper holder 30 supports both protrusions of the upper mold E, when the upper holder 30 is raised, the upper mold E is separated from the central mold F and separated first. F) only the upper mold E is first lifted apart as the intermediate holder 35 is still in place with the inner vertical wall 24.

When the upper mold (E) is separated from the central mold (F), the rubber product is subjected to plastic deformation by heating and compressing it, so that a relatively large surface pressure is applied to the contact surface to firmly fix the central mold (F) and the intermediate holder (35). It is necessary to keep the condition.

Therefore, when the upper mold (E) is separated in the above state, the center mold (F) is in the correct position, so as shown in FIG. 16 attached to the inner vertical wall (24) as a fixed shaft pin (91) The intermediate holder 35 and the central mold (F) sandwiched therebetween are prevented from being raised by supporting the fixed rod 35a protruding from both sides of the intermediate holder 35 by the locking surface 90a of the latch lever 90. This surface pressure prevents the rising and shaking together.

At this time, when the rod 32 is raised to the vertical groove 56a of the intermittent gap 56, which is fixed to both ends of the plate 55 and positioned between the vertical wall 20 and the inner vertical wall 24, the circular protrusion ( 33) are raised and assembled.

When the third cylinder P ₃ , which is located at the bottom of the upper plate 18 by passing through the center of the intermediate plate 16 to the upper portion of the substrate 14, is operated to raise the upper plate 18, the upper plate 18 The inner resin wall 24 fixed to both sides and the intermediate holder 35 held on the upper side are lifted up. At this time, the lower mold 40 is fixed in place by the support of the lower holder 40 to which the lower mold G is fixed. As the middle holder 35 rises, the center mold (F) is separated from the lower mold (G), and the upper, middle, and lower molds (E) (F) (G) are finished. do.

At this time, the intermediate lever 35, the center mold (F), and the locking lever 90, which is held on the fixed shaft pin 91, is raised together on the inner vertical wall 24, and the cam lever in the same position as the side wall 39 ( The cam bar 90b is in contact with the inner protruding surface of 92 and the locking lever 90 is rotated as the locking lever 90 is rotated about the fixed shaft pin 91 as represented by the solid line in FIG. 17. The locking surface 90a of the locking lever 90 was displaced at the position of the fixed rod 3a, and the rotational operation, which is the next operation of the intermediate holder 35 and the center mold F, was made to be European.

At this time, the lever 36 and the rod 37 connected to the middle lower portion of the intermediate holder 35 are raised together, and the guide groove of the intermittent groove 56 is in the state as represented by the solid line in the state of the imaginary line in FIG. Circular protrusion 38 is assembled to (56b).

After separating the respective mold is pulled to the fourth chamber London's (P ₄₎ piston when the fourth cylinder (P ₄₎ was placed between the freight (55) and front wall (39) operate on the signal of the automatic control box Since the piston is driven forward in the present state, as shown in FIG. 10 of the attached drawing of the plate 55 and the intermittent shaft 56 with the guide of the post 46, the forward movement moves and the vertical groove ( As a result of the movement of the circular protrusions 33 and 38 assembled in the 56a and the guide groove 56b, the levers 31 and 36 are pins 22 on the vertical wall 20 and the inner vertical wall 24. The rods 32 and 37, which were connected to the levers 31 and 36, were rotated as represented by solid lines at the position represented by the virtual line in FIG. And the intermediate holder 35 is rotated.

The upper holder 30 and the intermediate holder 35 are installed on the vertical wall 20 and the inner vertical wall 24 by the center pins 21 and 25 so as to be in the right positions, and the lever 31 connected to the middle part. (36) is rotated with the rods (32) and 37, the upper mold (E) and the center mold (F) is opened and closed together, and after rotating the operator removes the finished rubber product and supplies a new rubber member You only do it.

In the above, the center mold (F) and the upper mold (E) should be prevented from falling by the weight of the mold as the position is shifted from the horizontal to almost the vertical angle, as shown in (b) of Figure 12 of the accompanying drawings. Likewise, the fixing rod 75 having the same structure at both ends of the upper holder 30 and the intermediate holder 35 is always dug on both sides of the upper mold E and the center mold F by the elasticity of the compression spring 77. The excavation recesses 5 and 6 are supported by the intermittent surface 75a to prevent the upper mold E and the central mold F from falling even when the upper mold E and the central mold F are rotated.

When the upper mold (E) and the center mold (F) are returned to their original positions, the fourth cylinder (P ₄ ) is returned again, and when the rods 32, 37, and the levers 31, 36 are returned, It will be in the state as illustrated in the Figure and in this case is fixed vertically by the bracket 79 " Fixing piece 75 as a result of moving the lower right end of the shaft pin 76 of the fixing piece 75 is inserted into the operating holes 30, 35 'of the " type " After moving to the state as indicated in (A) of Fig. 12 of the attached drawing, return to completion after opening / closing operation, and return to the first mold (C) position as shown by the virtual line in Fig. 1 of the accompanying drawing. The cylinder P ₁ is raised again to repeat the same operation for opening and closing the uppermost mold C.

In addition, when the process of replacing the rubber product by opening and closing the three molds (C) as shown as an example to be processed in one molding press body (1) on the other side, the hydraulic piston ( 2) After the operation of heating and pressing the mold to completely replace the finished product and the new rubber member, the rail (8) is used as the power of the driving motor (M) to the position of the molding press main body (1) which has been hot pressing. The roller 11 is rotated along and the mold opening and closing operation of the mold C is stopped after the mold opening and closing device 10 is moved to perform the opening and closing operation of the mold C as described above.

The present invention as described above, the first cylinder (P ₁ ) and the second cylinder (P ₂ ), the third, fourth, fifth cylinder (P ₃ ) (P ₄ ) of the electrical signal by the automatic control box by the electronic system (P ₅ ) to control the piston reciprocating time and automatically control the rotation time of the main motor (M) and the motor (M '), the intermittent surface (75a) of the groove (5) ( 6) is separated from the compression spring (77) to maintain a state in which the compression of the upper mold (E) and the lower mold (G) does not cause any trouble. Subsequently, the second and third cylinders P ₂ and P ₃ are restored, and when the vertical wall 20 and the inner vertical wall 24 are lowered, the latch lever 90 has a curved portion 90C having a cam lever 92 The rod 32, 37 and the lever 31, 36 are in the same position at the same time after the fixing rod 35a is interrupted as shown in FIG. 33) (38) In addition, the upper mold E and the central mold F are reassembled with the lower mold G when the return operation disassembled from the vertical groove 56a and the guide groove 56b is completed. ₅ ) is reactivated, the hook pin 70 is lifted to fit in the fixing hole (7 ') and then rotate the screw 67 by the drive of the motor (M') and the moving plate 60 and the operation (50) In the reverse order as described above, the mold C in which the operating lever 62 and the rotation lever 64 are rotated and the assembly 50 and the moving plate 60 are assembled at the same time and assembled at the same time is mounted in the molding press main body 1. It will be right in place.

After replacing the new rubber member with the product by opening and closing the mold C in one unit, the first cylinder P ₁ fixed to the bottom plate 13 is opened to open and close the mold C positioned at the upper end thereof. When the substrate 14 is raised, the substrate 14 and the intermediate plate 16 and the upper plate 18 formed thereon, the plate 55, the operation plate 50, the moving plate 60, the lower holder 40, All instruments such as the intermediate holder 35, the upper holder 30, etc. are moved integrally, lifted to the second mold C position, stopped, and the mold C is moved without the operator's effort by the operation as revealed above. Since the opening and closing operation is continuously performed by mechanical driving, the operator can reciprocate several molding press bodies 1 and repeatedly to operate the mold quickly and accurately, simply by replacing the finished product and the new rubber member. It can be.

As well as the upper mold (E) and the central mold (F) is a useful design that the locking lever 90 is firmly fixed to the rocking lever (90) acting by the surface pressure when the separation is firmly achieved.

Claims (1)

When the locking surface 90a of the locking lever 90, which is installed on the inner vertical wall 24 by the fixing shaft pin 91, is operated up and down while fixing the fixing rod 35a protruding from both sides of the intermediate holder 35, The center mold of the rubber press mold automatic switchgear, characterized in that the cam bar (90b) and the curved portion (90c) is in contact with the cam lever 92, and the locking lever (90) can be rotated to control the intermediate holder (35). Flow prevention device.