KR910000058B1 - Opening and closing device for press mould - Google Patents

Abstract

The device automatically assembles or disassembles upper, middle, lower dies into a hot press for rubber forming to improve productivity. The device includes vertically movable hydaulic piston (2) operating die (C) mounted at lower forming press body (1); upper die (E), middle die (F), lower die (G) which are separated into three stages; inner heating wire (D) between upper fixing plate (3) and pressing plate (4), which heats rubber material to maintain constant temperature.

Description

Automatic opening and closing device of rubber molding press mold

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

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

3 is a front view of the installation state of the present invention.

4 is a partially cut-out perspective view of the present invention.

5 is a plan view partially cut sidebar of the present invention.

Figure 6 is a plan view showing a partially cut state in which the mold is moved by the operation of the present invention.

Figure 7 is a partially cutaway longitudinal sectional view of the present invention.

8 is a partially cut-away longitudinal sectional view illustrating a state in which an intermediate mold is raised by the piston of the present invention.

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

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

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

12A and (B) are cross-sectional views showing an enlarged portion "A" of FIG. 5 showing a state in which a mold is fixed by a locking piece.

FIG. 13 is an enlarged cross-sectional view of the intermittent membrane by cutting the line BB ′ of FIG. 10.

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 the present invention.

* 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 40: lower holder

47: support tube 48: spring

49: shaft 50: between operation

55: plate 56: intermittent

56a: vertical groove 56b: guide groove

60: moving plate 62: operating lever

64: pivoting lever 67: screw

70: hook pin 75: fixing piece

75a: intermittent surface 76: shaft pin

77: compression spring 80,81: termination

The present invention improves work efficiency by disassembling and assembling each mold divided into upper, middle, and lower parts in a press that is hot-pressed for molding a rubber material, and prevents various industrial accidents in advance. The present invention relates to an automatic opening and closing device of a rubber molding press mold, which is invented so that all operations are automated to improve productivity by increasing productivity.

The rubber molding presses used in the present time are usually made by the operator to separate the upper and lower molds, and then to separate the rubber members to be molded into the molds and to assemble the molds to the correct positions.

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 compressed 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 hotly heated, immediately before pressing it, decompressing the finished rubber processed product after heating and pressing, and assembling each mold in place. In addition to frequent burns, the workers avoided disassembling and disassembling the mold, and thus there was a problem in that normal work was not achieved and the worker was replaced by an unskilled worker at all times.

In addition, in the hot summer season, the above-mentioned work evasion was aggravated and the operation was frequently interrupted, causing managers to suffer serious economic damage.Many labor costs were invested to increase costs, so managers and many workers There is a need for a device for automatic manual process.

Therefore, in order to solve these problems, it is designed to be able to disassemble and assemble several rubber molding presses quickly with one machine by automating what is pre- filed (National Patent Application Nos. 87-4606 and 87-4703). This will be described in detail with reference to the accompanying drawings.

Hydraulic piston (2) is operated vertically on the lower part of the molding press body (1), and the mold (C) is pressed between the upper fixing plate (3) and the pressing plate (4) to three-stage rubber member (not shown) 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 certain 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 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. 1 of the accompanying drawings.

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 front side of the molding press main body is provided with a rail 8, the mold opening and closing machine 10 is guided by the rail (8) molding press main body ( In front of 1), move left and right.

The driving motor M is fixedly installed at one lower end of the mold opening and closing machine 10, and the sprocket 13 formed on the central shaft 12 of the roller 11 as a chain 9 is connected to the driving gear ( 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. , Right move is possible.

In the center of the mold opening and closing device 10, the substrate 14 positioned at the end surface of the piston on which the first cylinder P ₁ is fixed to the bottom plate 13 is moved up and down, and both sides of the bottom plate 13 are moved. In order to guide the vertical movement of the substrate 14 by fixing the guide 15 vertically.

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

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 up and down together 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.

In addition, the inner vertical wall 24 is 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.

Side and side walls 39 are fixedly installed on the substrate 14 on the front and back of the mold opening and closing machine 10, and posts 45 and 46 are formed in two rows between the side walls in the longitudinal direction, so that the upper posts 45 are operated during 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 fixed to the central portion of the plate 55 between the side walls 39 of the front side to operate the plate 55 before and after the position of both terminals of the plate 55. The intermittent section 56 is fixed between the vertical wall 20 and the inner vertical wall 24.

In the intermittent section 56, the vertical groove 56a is dug outwardly, and another guide groove 56b is dug vertically long in a position slightly shifted from the vertical groove 56a inwardly so that the rods 32 and 37 are vertically recessed. When the circular projections 33 and 38 of the circular projections 33 and 38 are inserted into the vertical grooves 56a and the guide grooves 56b, the levers 31, 36 and the rods 32 and 37 rotate so that the upper holder ( 30) and the intermediate holder 35 serves to rotate in a state as illustrated in FIG. The operating section 50 guided by the upper post 45 has a nut center 51 formed at its lower center and a 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, the operation section 50 is moved forward and backward in the longitudinal direction when the screw 67 rotates.

The moving plate 60 is positioned on the upper surface of the operating rod 50 so that several shaft bars 49 are fitted into the support tube 47 to be elastically installed by the spring 48, and the operating plate 50 and the movable plate ( The fifth cylinder (P ₅ ) is located in the center between the 60 to raise the moving plate 60, the fifth cylinder (P ₅ ) is applied by the external force only to raise the piston by a single drive method and is restored The external force is not used, because the interval between the operation 50 and the moving plate 60 is narrow, the operation length for the cylinder can be reciprocated is insufficient, so using one side cylinder or air or hydraulic When the piston of the fifth cylinder (P ₅ ) is raised to restore the moving plate 60 after moving up, the hydraulic pressure or air pressure was removed to be in place 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.

"형으로 절곡되어진 회동레버(64)의 중심부를 유설시켜 작동레버(62)와 회동레버(64)를 연동되게 한다.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 ′) long horizontally drilled on the plate 60 is to be moved 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.

"형으로 되고, 중앙금형(F)의 좌측단 형상 또한 "

"형으로, 또한 하부금형(G)의 좌측단 형상이 비교적 중앙금형(F)의 약간 내측저면으로 "

"형으로 되어져 있으므로 "

"형으로된 상부홀더(30)와 중간홀더(35), 그리고 그 내측하부에 위치된 하부홀더(40)에 첨부도면 제14도에서 표시한 것과 같은 상태로 끼워질 수 있도록 각각 형성한다.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 the left end shape of the lower mold (G) is relatively slightly inside the bottom of the center mold (F)"

"Because it is shaped"

The upper holder 30, the intermediate holder 35, and the lower holder 40 positioned in the inner lower portion thereof are formed so as to be fitted as shown in FIG.

The present invention thus described will be described in more detail as follows.

First, when the hydraulic piston 2 of the molding press body 1 is operated to form a rubber product, and the hydraulic piston 2 is returned to its original position, as shown in FIG. The mold opening and closing device 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 drive motor M, and the operation is already set in the automatic control box (not shown) since the roller 11 can be moved to the 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 opening and closing machine 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 pin 7 exposed to the front from the lower mold G, the hook pin 70 is operated when the fifth cylinder P ₅ is operated to be raised in this state. 70 is fitted into the fixing hole 7 '.

When the motor (M ') is rotated by an electrical signal sent from the automatic control box while the hook pin 70 and the lower mold (G) of the rotation lever 64 installed on the movable plate 60 are connected in this way. When power is transmitted through the chain 66, the screw 67 is rotated at a constant speed so that the operating section 50 in the direction of screwing movement of the nut section 51 is shown as shown in FIG. Will be transferred to the location as represented by the virtual line at.

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 between the movement between the operation 50 and the moving plate 60 or the right to move, and also the operating lever 62 and the rotating lever 64 which is located above the moving plate 60 The lower mold (G) is to be moved together in a fixed state.

"형으로된 캠절곡부(69a)의 위치에서 점차 안내핀(63)이 캠절곡부(69a)에 의해 좌측외부로 그 위치를 바꿀 때 이동판(60)의 중심에 축설되어 있던 중심축(61)을 중심으로 작동레버(62)가 서서히 회동되며 회동레버(64)를 동시에 회동시키게 된다.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, which is fixed to the side wall 39 in the longitudinal direction. The guide pin 63 moves along the ball 69 'and "

At the position of the cam bent portion 69a in the form of a center axis (constructed at the center of the moving plate 60 when the guide pin 63 gradually changes its position outwardly left by the cam bent portion 69a ( The operating lever 62 is slowly rotated around the 61 and rotates the pivoting lever 64 at the same time.

"형으로 위치된 상태에서 캠절곡부(69a)를 경유하며 상호 수평으로 겹치게 되고 다시 역으로 첨부도면 제6도에서 가상선으로 예시한 바와 같이 점차적으로 "

"형으로 변형되는 과정을 거치며 작동간(50)과 이동판(60)의 이동범위보다 더 큰 거리로 금형(C)을 이동시키게 된다.Thus, as illustrated in FIG. 5, the actuating lever 62 and the pivoting 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.

"Moving the mold (C) by a larger distance than the movement range of the operation 50 and the moving plate 60 during the process of deformation into a mold.

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 to the positional deformation of the pivoting lever (64).

When the mold C is moved by the above method, the upper, middle, and lower molds E, F, and G respectively have the upper holder 30 and the intermediate holder in the state as illustrated in FIG. (35) 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 moving the moving plate 60 stops operation to remove the external force. Hanging pin 70 at the fixed hole 7 'at the moment when the movable plate 60 is lowered by the self-weight of 60 and the elasticity of the spring 48 that is elastically compressed between the support tubes on the outer circumferential surface of the shaft bar 49. ) Is separated from the mold (C) and the moving plate 60, and the screw (67) that moved the moving plate 60 together with the operation (50) moves the mold (C). After moving completely, the motor stops the moving work by turning the motor M '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 first separated from the central mold F, and separated from the central mold F. 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.

At this time, when the rod 32 is raised to the vertical groove 56a of the intermittent gap 56, which is fixed between 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, both sides of the upper plate 18 are raised. The inner vertical wall 24 fixed to the inner and the intermediate holder 35 placed on the upper side is raised, in which case the lower mold (G) is in the correct position by the support of the lower holder 40 is fixed. Accordingly, when the intermediate holder 35 is raised, the central mold F is separated from the lower mold G, and the upper, middle, and lower molds E, F, and G are finished.

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

If then separating each die of the fourth cylinder was positioned between the freight (55) and front wall (39), (P ₄₎ is working on a signal of the automatic control box fourth cylinder (P ₄₎ is that drawn the piston Since the piston is driven forward in the 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 56a is formed on both sides of the intermittent shaft 56. As a result of the movement of the circular protrusions 33 and 38 assembled in the guide groove 56b and the levers 31 and 36, the pins 22 (in the vertical wall 20 and the inner vertical wall 24) The rods 32 and 37 which are connected to the levers 31 and 36 are rotated as represented by the solid line at the position represented by the virtual line in FIG. 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 being rotated, 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 due to the weight of the mold as the position is shifted from the horizontal to almost the vertical angle, the upper holder as shown in Figure 12b of the accompanying drawings (30) and the recessed portion 75 having the same composition at both ends of the intermediate holder 35 is always recessed in both sides of the upper mold (E) and the center mold (F) by the elasticity of the compression spring ( 5) (6) is prevented from falling even when the upper mold E and the central mold F are rotated by the intermittent surface 75a.

"형의 해지편(80)(81)이 작동공(30')(35')에 끼워지게 되므로 고정편(75)의 축핀(76) 하부우측단을 좌측으로 이동시키는 결과로서 고정편(75)은 첨부도면 제12a도에서 이동한 후 개폐동작을 완료하여 복귀시킨 다음 다시 첨부도면 제1도에서 가상선으로 표시한 바와 같이 최상단의 금형(C) 위치로 제1실린더(P₁)가 또 상승되어 최상단의 금형(C) 개폐를 위한 동일작동을 반복하게 되는 것이다.And when the upper mold (E) and the center mold (F) is returned to its original position, the fourth cylinder (P ₄ ) is returned again, and when the rods 32, 37 and the levers 31, 36 are returned to their original position, It is to be in the state as illustrated in the figure, in this case is fixed by the bracket 79 vertically installed "

&Quot; Type release pieces 80 and 81 are fitted into the operating holes 30 'and 35', so that the fixing piece 75 is a result of moving the lower right end of the shaft pin 76 of the fixing piece 75 to the left. ) Moves to and from the attached drawing of FIG. 12a, completes the opening and closing operation, returns it, and then again moves the first cylinder P ₁ to the position of the uppermost mold C as indicated by the virtual line in FIG. Ascended 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 mold is heated and pressed to complete the replacement of 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 body (1) which has been hot pressed. The roller 11 is rotated along and the mold opening and closing device 10 is moved to stop at the correct position to perform the opening and closing operation of the mold (C) as described above.

As described above, the present invention transmits an electrical signal by an automatic control box by an electronic system to the first cylinder P ₁ , the second cylinder P ₂ , the third, fourth, and fifth cylinders P ₃ (P ₃ ). ₄ ) (P ₅ ) the intermittent surface 75a is provided with an intermittent groove 75 to adjust the reciprocating time of the piston and to automatically control the rotation time of the main motor M and the motor M 'by using a heavy and hot mold. It is separated from the (6) and maintains the compression spring (77) in a state that does not interfere when the upper mold (E) and the lower mold (G) is moved.

Subsequently, the second and third cylinders P ₂ and P ₃ are restored, and the rods 32, 37 and the levers 31 and 36 simultaneously return to the vertical wall 20 and the inner vertical wall 24. In addition, the circular protrusions 33 and 38 also reassemble the upper mold E and the central mold F after the disassembly operation of the vertical groove 56a and the guide groove 56b. When the cylinder P ₅ is operated again, the hook pin 70 is raised to fit into the fixing hole 7 ', and then the screw 67 is rotated by the driving of the motor M' to operate with the moving plate 60. In the reverse order of the former 50, the operating lever 62 and the rotating lever 64 are rotated, and the mold C, which is assembled at the same time as the operating interval 50 and the moving plate 60, is assembled to the molding press body ( 1) It will be moved to the right position within.

After replacing the new rubber member with the product by opening and closing the mold C of one unit in this way, the first cylinder P ₁ fixed to the bottom plate 13 to open and close the mold C located at the upper end thereof. When the substrate 14 is raised, the substrate 14, the intermediate plate 16 and the upper plate 18, the plate 55, the operation plate 50, the moving plate 60, and the lower holder 40 formed thereon , All the mechanisms such as the intermediate holder 35 and the upper holder 30 are moved in one body, and are lifted to the second mold C position and then stopped to operate the mold C without the operator's effort. Since the moving and opening and closing movements are continuously performed by mechanical driving, the operator can repeatedly open and close molds by reciprocating several molding press bodies 1 by simply replacing the finished product with a new rubber member. It is a useful invention that can be done.

Claims (1)

The moving plate 60 is simultaneously lifted and moved on the central axis 61 by the upward movement of the fifth cylinder P ₅ positioned at the upper end of the center of the operation section 50 guided by the post 45. Guide pin 63 of (62) is guided to the guide hole (69 ') drilled in the guide plate 69 and fixed to protrude to the front of the lower mold (G) of the hook pin 70 of the rotation lever 64 As the motor M 'is driven and the screw 67 is rotated in the state of being caught by the fixing hole 7' of the pin 7, the nut stem 51 proceeds along the screw traveling direction and the mold C is removed. Guided to the upper holder 30, the intermediate holder 35, the lower holder 40, the piston moves forward so that the second cylinder (P ₂ ) to raise the intermediate plate 16 and the vertical wall (20) The upper holder 30 raises the upper mold E and the third cylinder P ₃ raises the upper plate 18 and the inner vertical wall 24 so that the center mold F is supported by the lower holder 40. Separate from the lower mold (G) When the plate 55 moved by the four-cylinder P ₄ is moved together with the intermittent interlock 56, a rod connected to the levers 31 and 36 at the middle of the upper holder 30 and the intermediate holder 35. When the circular protrusions 33 and 38 of the 32 and 37 are moved by the vertical grooves 56a and the guide grooves 56b, the upper holders 30 and the center pins 21 and 25 are moved. Automatic opening and closing device of the rubber molding press mold, characterized in that the intermediate holder 35 is rotated in a fixed state supporting the upper mold (E) and the center mold (F).

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