KR100805081B1 - CRB mold provided with quick clamp mechanism for manufacturing rubber products - Google Patents

Abstract

The present invention relates to a CRB mold for manufacturing rubber products equipped with a quick clamp mechanism, comprising a quick clamp mechanism capable of quickly clamping or releasing a CRB unit to a heat insulating plate and a heat insulating plate below, and fastening with a bolt as in the related art. In addition, the quick clamp mechanism allows the CRB unit to be fastened to the heat insulating plate and the heat insulating plate, and when the work stops, the clamping state of the quick clamp mechanism is released so that the CRB unit can be easily separated from the heat insulating plate and the heat insulating plate. It relates to a CRB mold for producing rubber products.

According to the CRB mold for manufacturing rubber products according to the present invention, the CRB unit can be easily separated from the heat insulating plate and the heat insulating plate that transfer heat when necessary, such as when the work is interrupted, and thus unnecessary cooling to keep the CRB unit at a low temperature. The operation of the device can be reduced, which leads to the advantage of saving the overall cooling capacity and the cooling cost.

Rubber, CRB, Mold, Clamp Mechanism, Mount

Description

CRB mold provided with quick clamp mechanism for manufacturing rubber products}

1 is a perspective view showing a state in which the CRB unit is separated from the CRB mold according to the present invention;

Figure 2a and Figure 2b is a perspective view showing the installation state of the quick clamp mechanism in the CRB mold according to the present invention,

3 is a plan view showing the installation of the quick clamp mechanism in the CRB mold according to the present invention,

4A and 4B are perspective views showing a clamping state and a released state of the quick clamp mechanism according to the present invention;

5A and 5B are schematic views for explaining the overall configuration of a CRB mold.

<Explanation of symbols for the main parts of the drawings>

10: CRB unit 11: upper fixing plate

12: rubber liquid inlet port 13: runner plate

14: runner 30: insulation board

40: heat plate 50: mold portion

60: quick clamp mechanism 61a, 61b: clamp mechanism

62: clamping rod 63: locking hole

64: handle 65: return spring

66: locking pin 66a: head portion

67: protruding pin

The present invention relates to a CRB mold for manufacturing rubber products equipped with a quick clamp mechanism, and more particularly, a quick clamp mechanism capable of quickly clamping or releasing a CRB unit to a heat insulating plate and a heat insulating plate thereunder, the bolt as in the prior art. The quick clamp mechanism allows the CRB unit to be fastened to the heat insulating plate and the heat insulation plate, and when the work is stopped, the CRB unit can be easily separated from the heat insulation plate and the heat insulation plate by releasing the clamping state of the quick clamp mechanism. The present invention relates to a CRB mold for producing rubber products.

In general, a vehicle engine has a periodic change in the center position due to the vertical movement of the piston and the connecting rod, the inertia force of the reciprocating portion occurring in the axial direction of the cylinder, the inertia force caused by the connecting rod swinging from the left and right of the crank shaft, and the crank shaft. Due to the periodic change in the rotational force, the structural vibration is always generated.

The vibration of the engine is caused by a combination of various causes and occurs in the vertical and horizontal directions of the engine. When the vibration inevitably generated from the engine is transmitted to the interior of the vehicle, it not only damages the driving environment but also causes great discomfort to the occupant. Can be.

Therefore, it is common to install an engine mount between the engine and the body to block or offset transmission of engine vibration generated in the power generation process to the body, and a transmission mount is also installed between the transmission and the body.

Usually, the engine mount includes a metal bracket for supporting the engine, a rubber insulator integrally formed in the vehicle body, a stud integrally formed in the rubber insulator and protruding upward, and a stud penetrating the upper portion of the rubber insulator. It is composed of anti-vibration rubber etc. which are installed integrally.

On the other hand, various rubber products including engine mounts are manufactured by filling and vulcanizing rubber liquid in a predetermined mold. Usually, a CRB (COLD RUNNER BLOCK) mold, HRB (HOT RUNNER BLOCK) mold, and a mold having a single cavity are manufactured. It manufactures using these.

In particular, the CRB mold is provided with a heating device in the part for forming the product, but the runner part has a low temperature holding part, so that the temperature of the runner part is constantly controlled, so that the rubber liquid material present in the runner part can be reused without being cured. Refers to the mold of the structure.

That is, in the CRB mold, the temperature of the runner portion, which is a supply path of the raw material, is maintained at a relatively low temperature as compared to the mold portion where the product is formed during operation, so that the rubber liquid material filled in the runner portion is not cured, and thus, the runner at the next injection. Since the rubber liquid material in the part is lowered into the cavity of the product molding part, the rubber liquid material of the runner part can be used for molding the product.

A brief description of the CRB mold apparatus with reference to FIGS. 5A and 5B is as follows.

5A and 5B, the mold apparatus shown in FIGS. 5A and 5B is different, but the basic configuration is the same. As shown in these figures, the CRB mold apparatus is divided into large parts, and the raw material supply unit 100 into which rubber raw material is input, and this raw material. The raw material filling path part 200, which is a path through which the rubber liquid branches from the supply part 100 to the respective cavities of the mold, and the mold part (molding part) 300 which vulcanizes the rubber liquid into a desired rubber product, is sequentially turned from the top. It is an arranged structure.

The raw material supply unit 100 is a horizontal cylinder 106 of the type in which the hydraulic motor 102 and the transfer screw 104 connected to the shaft of the hydraulic motor 102 is built, and at the end of the transfer screw 104. A first injection plunger 108 attached to the first pressurizing rubber liquid, a vertical cylinder 110 disposed at an outlet side of the horizontal cylinder 106, and a rubber liquid supplied to the vertical cylinder 110 vertically It consists of the 2nd injection plunger 112 which presses secondary to a direction.

Wherein the raw material filling path portion is a flow path of the rubber liquid, the CRB unit, the heat insulation plate, the heat insulation plate is a laminated structure from the top in order.

The CRB unit basically has a structure in which a rubber liquid inlet through which a rubber liquid raw material is injected by a raw material supply unit, and a path, that is, a runner, allows the rubber liquid raw material to branch from the rubber liquid inlet toward each cavity. .

In addition, the CRB unit is formed with a cooling water passage to maintain a low temperature by a water-cooled forced cooling method, at this time is maintained at a temperature of about 70 ~ 80 ℃.

The mold part includes an upper mold having a plurality of upper cores on a bottom thereof, and a lower mold having a cavity at a point coinciding with the upper core, and a lower plate having a heater is mounted on the bottom of the lower mold.

Here, the operation flow of the CRB mold apparatus having the above configuration will be briefly described as follows.

First, the first injection plunger 108 attached to the screw end by the feed force of the feed screw 104 rotated by the hydraulic motor 102 while supplying the rubber raw material cut to a suitable size to the raw material supply unit 100 is rubber When the raw material is pressed in the horizontal direction, the rubber raw material is gradually heated to the temperature set by the heating means not shown.

Subsequently, the rubber liquid is supplied from the horizontal cylinder 106 to the interior of the vertical cylinder 110 by the pressure of the first injection plunger 108, and then receives the pressure of the first injection plunger 108 of the vertical cylinder 110. It is transferred to the raw material filling path portion 200 in the downward direction.

Therefore, the rubber liquid is introduced into the rubber liquid inlet formed in the CRB unit 10 of the raw material filling path part 200, and the rubber liquid thus introduced flows through the runner and the vertical through-holes formed at each end of the runner, and then molds. It is injected into the part.

The rubber liquid subsequently injected into the mold portion flows along a predetermined passage and is finally supplied to each cavity for forming a product.

Finally, the rubber liquid is heated by the heater of the lower plate while it is filled inside the cavity, and the rubber liquid is heated to the set temperature of the rubber liquid (about 170 to 180 ° C. required for complete vulcanization of the rubber liquid). The rubber liquid is completely vulcanized to a desired level and molded into a metal bracket or the like to form a rubber-like product such as an engine mount.

On the other hand, since the CRB mold has a low temperature holding part including a cooling water passage formed in the CRB unit and a heat insulating plate disposed below the CRB unit, only the rubber liquid filled with the respective cavity of the molding part is heated by the heater of the upper and lower plates for vulcanization. The rubber liquid heated to about 170 to 180 ° C. and filled in the runner in the CRB unit is kept at a low temperature of 70 to 80 ° C. to prevent curing.

The reason for the low temperature holding part consisting of the coolant passage and the heat insulating plate formed in the CRB unit is to keep the temperature of the runner at about 70 to 80 ° C. which can reuse the rubber liquid, so that the rubber liquid present in the runner is not cured and the continuous process is performed. This is to ensure that it remains in a reusable state.

If there is no low temperature holding part, the heater heat of the upper and lower plates is transferred to the runner part of the CRB unit, and the rubber liquid in the runner is hardened (scorching occurs), so it cannot be reused for the continuous process (not available for the next injection). Becomes

On the other hand, the conventional CRB mold had the following problems.

In the conventional CRB mold, the CRB unit, which should be kept at a relatively low temperature, is fastened to the insulation plate and the heat insulation plate with a lot of bolts, so that it cannot be separated easily. I had to dismantle it.

Since the CRB unit that needs to be dismantled by dismantling many bolts cannot be easily separated from the insulation plate, the upper plate, and the mold part (molding part) underneath, the CRB unit is left in a closed state without being separated separately. .

Therefore, even during breaks such as lunch breaks and unavoidable breaks, the chiller had to be kept running to keep the CRB unit cool, thereby circulating the coolant into the coolant passage of the CRB unit.

Even when the operation is stopped, the rubber liquid path such as the runner in the CRB unit is filled with the rubber liquid to be used for molding the product at the next injection, so it is necessary to keep the low temperature continuously.

If the cooling device is not operated at the time of interruption of work, it is difficult to maintain the CRB unit at low temperature due to the heater heat coming from the upper heat plate and the mold part, so that there is a problem of vulcanization and scorch (cured rubber) generation in the CRB unit. do.

For this reason, in the past, the cooling system had to be continuously operated even when the operation was interrupted. As a result, there was a problem in that the total cooling capacity and the cooling cost were excessive due to the unnecessary operation of the cooling system at the time of interruption. This situation is desperately required.

Therefore, the present invention has been invented to solve the above problems, and provided with a quick clamp mechanism capable of quickly clamping or releasing the CRB unit to the heat insulating plate and the heat insulating plate below, the method of fastening with a bolt as in the prior art In addition, the quick clamp mechanism allows the CRB unit to be fastened to the heat insulating plate and the heat insulating plate, and when the work stops, the clamping state of the quick clamp mechanism can be released to easily separate the CRB unit from the heat insulating plate and the heat transferring plate. This reduces the need for unnecessary chillers to keep the CRB unit at low temperatures in the event of a break, thus providing CRB molds for the manufacture of rubber products equipped with quick clamp mechanisms that can reduce overall cooling capacity and cooling costs. Its purpose is to.

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

In order to achieve the above object, the present invention provides a CRB unit in which an upper fixing plate in which a rubber liquid inlet is formed and a runner plate in which a runner is formed is laminated and assembled up and down, a heat insulating plate and a heat insulating plate under the CRB unit, and a lower side in which a cavity is formed. In the CRB mold for manufacturing rubber products, in which the mold parts of the mold are laminated in order,

Quick clamp including a locking pin vertically installed so that the upper end including the head portion protrudes from the upper surface of the heat insulating plate by a predetermined height, and a clamp mechanism installed inside the CRB unit to lock the head of the locking pin inserted into the CRB unit. Equipped with a mechanism,

The head portion of the locking pin is locked by the clamp mechanism so that the CRB unit is clamped and integrated with the heat insulating plate and the heat insulating plate, and the head portion of the locking pin is unlocked so that the CRB unit can be separated from the heat insulating plate and the heat insulating plate. A CRB mold for producing rubber products equipped with a quick clamp mechanism is disclosed.

Here, the clamp mechanism includes a clamping rod inserted between the upper fixing plate and the runner plate so as to be inserted and installed in the mounting groove formed on the joint surface of the upper fixing plate and the runner plate so as to be movable back and forth; A handle coupled to a front end of the clamping rod to be positioned outside the CRB unit; And a return spring installed between the clamping rod and the mounting groove to provide elastic restoring force for returning the clamping rod to the rear from a state in which the clamping rod is pulled forward while elastically supporting the clamping rod. The clamping rod includes a head of a locking pin. According to the front and rear positions of the clamping rod in the state in which the upper end including the portion is characterized in that the locking hole of the pit shaped like the locking / release of the head portion of the locking pin downward.

In addition, the clamping rod elastically supported by the return spring in the mounting groove has a structure in which the connecting rod is connected between the front and rear bars of the rectangular cross section in the middle, and the locking holes are formed in the front and rear bars, respectively. The two locking pins arranged in the longitudinal direction of the clamping rod in the two locking holes are characterized in that the locking.

In addition, the return spring is installed in the mounting groove between the front end surface of the rear bar of the clamping rod and the spring support end of the mounting groove.

In addition, the pentagon-shaped locking hole is characterized in that the large diameter hole through which the head portion of the locking pin is connected to the rear of the relatively small diameter hole to be caught by the head portion of the locking pin.

In addition, the handle is rotatably coupled to the front end of the clamping rod, two protruding pins are formed in parallel to the lower side of the neck of the handle block connected to the clamping rod in the handle, the front end of the two protruding pins are fitted to the runner plate side When the handle is rotated while the clamping rod is pulled forward, the insertion pin is formed to maintain the pulled state of the clamping rod with the two protruding pins extending across the side of the runner plate outside the insertion groove. It is done.

In addition, the clamp mechanism is provided one at each of the left and right positions in the CRB unit, the locking pin is characterized in that a total of four are installed two by one in front and rear at each of the left and right positions.

In addition, the locking pin is inserted into the mounting hole formed in the heat insulating plate and the heat insulating plate of the lower side is characterized in that the screw fastening method.

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

The present invention relates to a CRB mold for manufacturing rubber products, and in particular, the CRB unit is further provided with a quick clamp mechanism, and the CRB unit with the quick clamp mechanism and a heat insulating plate and a heat insulating plate thereunder, rather than a bolt fastening as in the prior art. The main focus is to be able to fasten together, and when the work stops, the clamping state of the quick clamp mechanism is released so that the CRB unit can be easily detached.

1 is a perspective view illustrating a state in which a CRB unit is separated from a CRB mold according to the present invention, and FIGS. 2A and 2B are perspective views illustrating an installation state of a quick clamp mechanism in a CRB mold according to the present invention. A plan view showing the installation state of the quick clamp mechanism in the CRB mold according to the present invention.

4A and 4B are perspective views illustrating a clamping state and a released state of the quick clamp mechanism according to the present invention.

First, referring to FIG. 1, the CRB unit 10 has a rubber liquid inlet 12 through which a rubber liquid raw material is input by a raw material supply unit, and a rubber liquid raw material branches and flows from the rubber liquid inlet 12 toward each cavity. It has a structure which basically has the path | route formed so that it may be, namely, each runner 14.

Quick clamp mechanism 60 of the present invention can be applied to a two-stage combined CRB unit 10 consisting of an upper fixing plate 11 and a runner plate 13, as shown, such a two-stage combined CRB unit ( In 10), the water-cooled forced cooling method is adopted as in the conventional single CRB unit.

Referring to the two-stage coupling type CRB unit 10, as shown in Fig. 1 and 2a, the upper fixing plate 11 and the runner plate 13 are fastened with a plurality of bolts 15 in a stacked state up and down, and integrated. As such, the upper fixing plate 11 and the runner plate 13 assembled as a single body constitute the CRB unit 10 to be used as one CRB mold part.

As described above, in the actual CRB mold, the upper fixing plate 11 and the runner plate 13 are integrally bolted to be used as one complete mold part (CRB unit). For reference, the quick clamp mechanism is installed in FIGS. 2A and 2B. In order to show and explain the state more clearly, the top fixing plate 11 and the runner plate 13, which are actual integrated assemblies, are shown to be disassembled.

Reference numeral 12 denotes a rubber liquid inlet formed in the center of the upper fixing plate 11, which becomes a portion into which the rubber liquid raw material is input by the raw material supply unit.

In addition, reference numeral 14 denotes a runner formed so that the rubber liquid raw material branches and flows from the rubber liquid inlet 12 toward each cavity. Thus, a plurality of branched runners 14 are formed on the upper surface of the runner plate 13. It is processed to form a runner part.

The rubber liquid raw material injected through the rubber liquid inlet 12 of the upper fixing plate 11 is branched to each runner 14 at the center of the runner part and flows thereafter, and the runner plate 13 is perpendicular to the end of each runner 14. After passing through the heat insulating plate 30 and the heat insulating plate 40, and finally being supplied to the respective cavities of the mold part 50, the runner plate 13 and the heat insulating plate 30 are positioned at the end of each runner 14. , A vertical through hole (reference numeral 16 is a through hole of the runner plate) is provided to pass through the heat plate 40.

Reference numerals 17 and 18 denote cooling water passages for water-cooled forced cooling formed in the upper fixing plate 11 and the runner plate 13, respectively, and the cooling water supplied from the cooling device is connected to the CRB unit (17, 18) through the cooling water passages (17, 18). 10), ie, a mold part (temperature of about 170 to 180 ° C.) heated by the upper heat plate 40 and the lower heat plate 51 to a high temperature by passing through the upper fixing plate 11 and the upper heat plate 40 (50). ), It is possible to maintain a relatively low temperature (about 60 ~ 80 ℃).

Reference numeral 19 denotes a hole in which the heater is mounted in the heat insulating plate 40.

The two-stage combined CRB unit 10 as described above has the advantage that the runner 14 is processed on the surface of the runner plate 13 so that the number of cavities and positioning of the mold part can be free.

In addition, since the CRB unit 10 has a structure in which the runner portion is separated and bolted, the scorch may be easily removed and cleaned when the scorch is generated when the scorch occurs.

On the other hand, in such a two-stage coupling type CRB unit 10, the quick clamp mechanism 60 of the present invention is installed between the upper surface of the fixing plate 11 and the runner plate 13, which will be described in detail As follows.

First, the clamp mechanisms 61a and 61b are interposed between the upper fixing plate 11 and the joining surface of the runner plate 13, and two clamp mechanisms, one at each of the left and right positions, are installed.

Of course, when the runner part consisting of the plurality of runners 14 in the runner plate 13 is located at the center, the clamp mechanisms 61a and 61b may be installed at both sides of the runner part, respectively. Although the clamp mechanisms 61a and 61b are taken as an example, the number of clamp mechanisms can be appropriately changed in consideration of the installation space if the path of the rubber liquid raw material in the CRB unit 10 is changed.

Each of the clamp mechanisms 61a and 61b is largely coupled to a clamping rod 62 having a locking hole 63 embedded in the CRB unit 10, and coupled to a front end of the clamping rod 62 to the outside of the CRB unit 10. The handle 64 is positioned, and the return spring 65 for the elastic operation of the clamping rod 62, the insulating plate 30 and the heat insulating plate 40 in the locking hole 63 of the clamping rod 62 Locking pin (66) fixedly installed in the) is locking / releasing structure is to fasten or release between the CRB unit 10 and the heat insulating plate 30 and the heat insulating plate 40 below.

The clamping rod 62 is embedded between the upper fixing plate 11 and the runner plate 13, and the mounting groove 22 formed on the joint surface of the two plates, that is, the lower surface of the upper fixing plate 11 and the runner plate 13. It is installed in the mounting groove formed on the upper surface of the), in particular, the clamping rod 62 is installed so as to slide back and forth longitudinally in the mounting groove 22 between the two plates.

The clamping rod 62 has a structure in which the front and rear bars 62a and 62c having a rectangular cross section are connected to each other by a connecting rod 62b having a circular cross section. In particular, the front and rear bars 62a and 62b have a The head portion 66a of the locking pin 66 fixedly installed on the heat insulating plate 30 and the heat insulating plate 40 is engaged with the locking hole 63 through which the locking hole 63 can be locked.

The locking hole 63 formed in each of the bars 62a and 62b is formed in the shape of a dent that is connected to the large diameter hole 63a and the relatively small diameter hole 63b. In particular, the head portion 66a of the locking pin 66 is formed. The large diameter hole 63a through which () can pass is connected to the front of the relatively small diameter hole 63b to which the head part 66a of the locking pin 66 is caught.

Therefore, when the head portion 66a of the locking pin 66 coincides with the large diameter hole 63a, the head portion 66a of the locking pin 66 can be detached while falling downward from the locking hole 63. In this case, the CRB unit 10 may be separated from the heat insulating plate 30 and the heat insulating plate 40 thereunder (the clamping state).

However, when the head portion 66a of the locking pin 66 is inserted into the large diameter hole 63a and then positioned at the small diameter hole 63b, the head portion 66a is caught by the small diameter hole 63b. Since the locking pin 66 cannot be locked in the direction, the locking pin 66 is locked to the locking hole 63 so that the CRB unit 10 is engaged with the heat insulating plate 30 and the heat insulating plate 40 (clamping state).

In addition, the mounting groove 22 into which the clamping rod 62 is inserted in the upper fixing plate 11 and the runner plate 13 may be moved back and forth by a predetermined distance in consideration of the shape of the bar and the rod. Although not shown in the drawings, the mounting groove of the upper fixing plate 11 is formed in a shape that can be formed in the bar 62a and 62c of the clamping rod 62 protruding upward from the upper surface of the runner plate 13 and the locking pin ( It is appropriate to form the shape in which the head portion 66a of 66) can be put.

In addition, when the operator releases the handle 64 while the operator holds the handle 64 and pulls the handle 64 forward, the clamping rod 62 is returned to the rear home position. The main is mounted with a return spring 65.

The return spring 65 is for elastically returning the clamping rod 62 when the clamping rod 62 is released while the clamping rod 62 is pulled forward. The return spring 65 is separately provided to each of the two clamping rods 62. Is mounted.

The return spring 65 is mounted on the connecting rod 62b of each clamping rod 62, which in a preferred embodiment is the return spring 65 in the front end face of the rear bar 62c and in the mounting groove 22. It is installed between the spring support ends 22a.

The mounting groove 22 portion of the spring position is relatively large in width so that the return spring 65 can be installed so as to step forward, and the stepped portion supports a spring for supporting one end of the return spring 65. To be a stage 22a.

Of course, the other end of the return spring 65 is supported at the front end face of the rear bar 62c.

As a result, the return spring 65 is compressed by the rear bar 62c when the clamping rod 62 is pulled forward, and the return spring when the clamping rod 62 is released while the return spring 65 is compressed. Restoring tension in this original form will cause the clamping rod 62 to move backwards.

As described above, each return spring 65 provides an elastic restoring force for returning the clamping rod 62 pulled forward and rearward, and is used to elastically operate the clamping rod 62.

On the other hand, the handle 64 is rotatably installed at one end of the clamping rod 62, the handle 64 is a portion located outside the CRB unit 10, in particular to pull the clamping rod 62 Will be used.

The handle 64 is composed of a hook portion 64a, which is held by the operator by hand, and a handle block 64b rotatably coupled to the clamping rod 62 while being integral with the hook portion 64a. When the operator grasps the hook 64a and pulls the clamping rod 62, the clamping rod 62 is pulled and moved in the same direction.

In this state, when the clamping rod 62 is completely pulled out, the head portion 66a of the locking pin 66 coincides with the large diameter hole 63a of the locking hole 63.

In a preferred embodiment, the clamping rod 62 of each of the clamp mechanisms 61a and 61b is clamped even if the hand is released when the handle 64 is rotated in a state of pulling forward and overcoming the force of the return spring 65. Release state maintaining means for maintaining the pulled state of the rod 62 is provided.

The release state maintaining means is a component that maintains the clamping release state of the CRB unit 10 unless the clamping rod 62 is held in the pulled state and the handle 64 is rotated back to the initial position. In the 64b, two protruding pins 67 parallel to the lower side of the neck 64c connected to the clamping rod 62 are integrally formed, and two protruding pins 67 correspond to the protruding pins 67 on the side of the runner plate 13. The tip portion of the pin 67 is to form an insertion groove 23 that can be inserted.

In the state where the clamping rod 62 has entered inwardly from the CRB unit 10, that is, located at the rear, the CRB unit 10 has a locking pin 66 where the small diameter hole 63b of the locking hole 63 is located. In the clamped state in the state of being caught, the protruding pins 67 are inserted into the corresponding insertion grooves 23 of the runner plate 13.

However, in the state in which the clamping rod 62 is completely pulled forward, each protruding pin 67 is completely removed from the corresponding insertion groove 23. In this case, the tip of the protruding pin 67 is rotated when the handle 64 is rotated. The end is extended to the side of the runner plate 13 outside the insertion groove 23, in which case the clamping rod 62 remains pulled until the handle 64 is rotated back to its original position. do.

Of course, when releasing the hand while the handle 64 is rotated back to its original position, the protruding pin 67 is inserted into the corresponding insertion groove 23 again while the clamping rod 62 is elastic to the return spring 65. It can be returned to the rear by the restoring force.

On the other hand, the locking pin 66 is inserted into the mounting holes (31, 41) formed through the heat insulating plate 30 and the heat insulating plate (40) perpendicularly fixed to the screw fastening bar, a bolt of a predetermined length can be used Do.

In other words, the locking pin 66 may be screwed into the mounting hole and fixedly installed vertically. For example, the locking pin 66 may be fixed by being screwed into the mounting hole 41 of the upper plate 40. In particular, the upper end including the head 66a may be installed to protrude to a predetermined height from the upper surface of the heat insulating plate 30.

Thus, when assembling the CRB unit 10 with the upper end including the head portion 66a of the locking pin 66 protruding from the upper surface of the insulating plate 30, the head portion 66a of the locking pin 66 is the runner plate. After passing through the through hole 21 of (13), it is fitted into the locking hole 63 of the clamping rod 62 to be locked.

In the illustrated embodiment, each of the clamping rods 62 forms a locking hole 63 in each of the front bar 62a and the rear bar 62c, and the heat insulating plate 30 can be locked in each of the locking holes 63. And four locking pins 66 at four corners of the heat insulating plate 40, so that the CRB unit 10 is connected to the heat insulating plate 30 and the heat insulating plate 40 by a total of four locking pins 66. It can be securely fastened.

That is, two locking pins 66 are installed at the left and right positions at each of the front and rear sides, and a total of four are installed. The two locking pins 66 are arranged in the two locking holes 63 of each clamping rod 62 in the longitudinal direction of the clamping rod 62. The locking pin 66 is to be locked.

As described above, the quick clamp mechanism for quickly clamping or releasing the CRB unit to the lower insulation plate and the heat insulation plate in the CRB mold according to the present invention will be described. Next, the process of separating and assembling the CRB unit will be described.

First, as described above, the CRB unit 10 is used as one part while the upper fixing plate 11 and the runner plate 13 are fastened with the bolts 15, and the CRB unit 10 during the operation of molding rubber products. ) Is formed in a state where the quick clamp mechanism (consisting of the left clamp mechanism 61a and the right clamp mechanism 61b) 60 is fastened to the upper side of the heat insulating plate 30.

At this time, the protruding pin 67 of the handle 64 is inserted into the insertion groove 23 of the runner plate 13.

On the other hand, when the work stops, the quick clamp mechanism 60 is released to release the clamping, and the heat insulating plate 30, the upper heat plate 40, and the mold part 50 are lowered and separated from the CRB unit 10. To release the clamp mechanism 60, the two handles 64 on both sides are pulled forward and then rotated.

At this time, the two clamping rods 62 are simultaneously pulled forward while compressing the return spring 65, so that the position of each locking pin 66 is a large diameter hole in the small diameter hole (63b) of the locking hole (63) It is relatively moved to 63a.

In this state, when the heat insulating plate 30, the heat insulating plate 40, and the mold part 50 are lowered, the head portion 66a of the locking pin 66 passes through the large diameter hole 63a portion of the locking hole 63. The CRB unit 10 is completely separated from the heat insulating plate 30 while falling downward.

In addition, when the two clamping rods 62 are pulled forward, the protruding pin 67 of the handle 64 is completely removed from the insertion groove 23 of the runner plate 13, and at this time, the handle 64 is turned. In the state, the protruding pin 67 extends from the insertion groove 23 to the side of the runner plate 13, and the handle 64 and the clamping rod 62 are supported by the protruding pin 67. ) Will be pulled forward.

Thereafter, in order to work again, the heat insulating plate 30, the heat insulating plate 40, and the mold part 50 are raised to be fastened with the CRB unit 10, and the heat insulating plate 30, the heat insulating plate 40, and the mold part ( 50 is raised to bond the upper surface of the heat insulating plate 30 to the lower surface of the runner plate 13 of the CRB unit 10.

At this time, the head portion 66a of the locking pin 66 is inserted through the large diameter hole 63a portion of the locking hole 63, and then rotates the handle 64 in reverse to release the respective pins ( 67 is reinserted into the corresponding insertion groove 23 of the runner plate 13 so that each clamping rod 62 is returned to the rear by the elastic restoring force of the return spring 65.

In this way, when the respective clamping rods 62 are returned to the rear, the head portion 66a of each locking pin 66 passes from the position immediately above the portion of the large diameter hole 63a in the state of passing through the corresponding locking hole 63. It moves to the position directly above the part of the small diameter hole 63b.

As a result, while the head portion 66a of each locking pin 66 is caught by the small diameter hole 63b portion of the locking hole 63, the locking does not fall downward, and the CRB unit 10 is clamped. Clamping of the mechanisms 61a and 61b is brought into complete engagement with the lower components.

In this way, according to the CRB mold according to the present invention, the quick clamp mechanism for quickly clamping or releasing the CRB unit is provided, so that the CRB unit can be easily separated from the heat insulating plate and the heat insulating plate when necessary, such as when the work is interrupted. Therefore, it is possible to reduce the unnecessary operation of the cooling device, there is an advantage to save the cooling capacity and cooling costs.

As described above, according to the CRB mold for manufacturing rubber products having the quick clamp mechanism according to the present invention, the quick clamp mechanism for quickly clamping or releasing the CRB unit is provided, so that the following advantages can be provided. do.

1) The CRB unit can be easily separated from the insulation board and the heat insulating plate at any time, if necessary, such as when the work is interrupted. Since the heat source is removed from the CRB unit, it is possible to reduce the operation of the unnecessary cooling device to keep the CRB unit at a low temperature. This has the advantage of saving the overall cooling capacity and cooling costs.

2) Since the heat source is removed from the CRB unit, vulcanization and scorch inside the CRB unit can be prevented when the work is interrupted.

3) After standardization of CRB mold, it is possible to exchange the mold part below the heat plate freely, so the convenience of mold replacement is increased.

Claims (8)

Rubber products for the manufacture of a CRB unit formed by stacking up and down a top-mounted plate with a rubber liquid inlet and a runner plate with a runner portion stacked up and down, a heat insulating plate and a heat-heating plate under the CRB unit, and a mold part under the cavity formed with a cavity in this order. In CRB mold, Quick clamp including a locking pin vertically installed so that the upper end including the head portion protrudes from the upper surface of the heat insulating plate by a predetermined height, and a clamp mechanism installed inside the CRB unit to lock the head of the locking pin inserted into the CRB unit. A mechanism is provided so that the head portion of the locking pin is locked by the clamp mechanism so that the CRB unit is clamped and integrated with the heat insulating plate and the heat insulating plate, and the head portion of the locking pin is unlocked so that the CRB unit can be separated from the heat insulating plate and the heat plate. To do so, The clamp mechanism is inserted into the mounting groove formed on the joining surface of the upper fixing plate and the runner plate so as to be moved back and forth, the clamping rod interposed between the upper fixing plate and the runner plate, and coupled to the front end of the clamping rod, CRB unit A handle adapted to be positioned externally and a return spring installed between the clamping rod and the mounting groove to elastically support the clamping rod and to provide an elastic restoring force for returning the clamping rod rearwardly from the pulled state; The clamping rod has a large diameter hole through which the head portion of the locking pin can pass according to the front and rear positions of the clamping rod while the upper portion including the head portion of the locking pin has passed. While forming a locking hole connected to the structure, The clamping rod elastically supported by the return spring in the mounting groove has a structure in which the connecting rod is connected to the front and rear bars of the rectangular cross section in the middle, and the locking holes are formed at the front and rear bars, respectively. The CRB mold for manufacturing rubber products having a quick clamp mechanism, characterized in that two locking pins arranged in the longitudinal direction of the clamping rod are locked in the two locking holes. delete delete The method according to claim 1, And the return spring is installed between the rear end surface of the rear bar of the clamping rod and the spring support end of the mounting groove in the mounting groove. delete The method according to claim 1, The handle is rotatably coupled to the front end of the clamping rod, and two protruding pins are formed in the lower side of the neck of the handle block connected to the clamping rod in the handle, and the front end portions of the two protruding pins are fitted to the runner plate side. When the handle is rotated in the state that the clamping rod is pulled forward, when the handle is rotated, the pulled state of the clamping rod is maintained while the two protruding pins are extended across the side of the runner plate outside the insertion groove CRB mold for manufacturing rubber products with quick clamp mechanism. The method according to claim 1, The clamp mechanism is provided with one in each of the left and right positions inside the CRB unit, the locking pin is installed in each of the two front and rear at each of the left and right positions, a total of four is installed CRB molds for the production of rubber products equipped with a quick clamp mechanism . The method according to claim 1, The locking pin is a CRB mold for manufacturing a rubber-like product with a quick clamp mechanism, characterized in that the lower body is inserted into the mounting hole formed in the heat insulating plate and the heat insulating plate is fixed by a screw fastening method.

Images