CN201645698U - Rubber product forming die - Google Patents

Abstract

A rubber product forming die comprises a front die and a rear die, wherein the rear die is provided with a die cavity, the front die is provided with a die core matched with the die cavity, and a locking device is arranged between the front die and the rear die; in the production process, behind front mould and the back mould compound die, through locking front mould and back mould are locked to locking device, and rubber is heated the shaping in the cavity that front mould and back mould enclose to cover, because locking device's constraint effect, front mould and back mould can not produce the dislocation because of the inflation of rubber, so do not need the external front mould or back mould to exert pressure, consequently, only need be equipped with the reinforced of an automation mechanized operation, equipment and a plurality of heating the utility model discloses a mould can be in order to realize automation mechanized operation, improves production efficiency, and manufacturing cost can practice thrift 50% than current manufacturing cost.

Description

A molding die for rubber products

Technical field:

The utility model relates to the technical field of plastic molds, in particular to a molding mold for rubber products.

Background technique:

Generally speaking, during the preparation of rubber products, it is necessary to inject rubber raw materials into the mold, and then pressurize and keep the mold warm so that the raw materials can be vulcanized and formed in the mold.

The production mold of traditional rubber products includes a front mold, a rear mold and a core. , discharging, pushing into the machine hole, pressurizing, exhausting, heating and vulcanizing operations, and then pry the mold from the machine hole to pull out the product. Due to the relatively long molding time of rubber, it generally takes 4 to 5 minutes, and sufficient pressure must be ensured during the molding process. At present, the pressure maintaining of traditional plastic molds is realized by applying pressure to the front mold or the rear mold by a presser. Therefore, during the molding process, the mold must be placed on the press for 4 to 5 minutes. After the molding is completed, the mold is removed from the press, and then the mold is opened to take out the formed product.

Therefore, if a traditional mold is used to produce rubber products, if only one press is configured, each production must take 4 to 5 minutes, and the production efficiency is low; if each mold is equipped with a press, it will inevitably Increase the cost, increase the footprint of the equipment, and are all stand-alone operations, and the automation program is not high.

Invention content:

The purpose of the utility model is to provide a molding die for rubber products with high degree of automation, high production efficiency and low production cost for the deficiencies of the prior art.

The purpose of this utility model is achieved through the following technical measures:

A molding die for rubber products, comprising a front mold and a rear mold, the rear mold is provided with a mold cavity, the front mold is provided with a mold core matching the mold cavity, and a locking device is arranged between the front mold and the rear mold.

The locking device includes a pivot that pivotally connects the front mold and the rear mold, and a buckling device; matching fasteners.

The front mold is provided with a groove matching the mold core, the mold core is arranged in the groove, and a pressure booster is arranged between the mold core and the bottom of the groove. The ends are respectively fixedly connected with the bottom of the groove and the mold core.

The booster is a spring and/or an air bag.

The front mold is provided with at least two mold cores, the number of the mold cavities and the grooves is the same as the number of the mold cores, wherein the mold cores are independent of each other.

Alternatively, the front mold is provided with at least two mold cores, and the number of the mold cavities and the grooves is the same as the number of the mold cores, wherein the mold cores are connected to each other.

The front mold is provided with a feed port, and the feed port communicates with the groove, and the die core is provided with a discharge port, and the discharge port communicates with the mold cavity.

The front mold is provided with a feed port, and the feed port communicates with the mold cavity.

Further, the front mold or the rear mold are respectively provided with a storage tank and a distribution channel, and the storage tank and the feeding port are communicated through the distribution channel.

According to the above, the front mold is provided with a guide post or a guide sleeve, and the rear mold is provided with a guide sleeve or a guide post.

The beneficial effects of the utility model are as follows: a molding die for rubber products, including a front mold and a rear mold, the rear mold is provided with a mold cavity, the front mold is provided with a mold core matching the mold cavity, and a mold core is arranged between the front mold and the rear mold. There is a locking device; in the production process, after the front mold and the rear mold are closed, the front mold and the rear mold are locked by the locking device, and the rubber is heated and formed in the cavity surrounded by the front mold and the rear mold. Due to the restraint effect of the locking device, the front mold and the rear mold will not be dislocated due to the expansion of the rubber, so no external pressure is required on the front mold or the rear mold. Therefore, only one automatic feeding and heating equipment is required. With a plurality of molds of the utility model, automatic operation can be realized, production efficiency can be improved, and the manufacturing cost can be saved by 50% compared with the current production cost.

Description of drawings:

The utility model is further described by using the accompanying drawings, but the embodiments in the accompanying drawings do not constitute any limitation to the present utility model.

Fig. 1 is the three-dimensional structure schematic diagram of the present utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is a sectional view of A-A direction in Fig. 2;

Fig. 4 is the exploded schematic diagram of the clamping state of the utility model;

Fig. 5 is the structural representation of the mold opening state of the present utility model;

Fig. 6 is an exploded schematic diagram of the mold opening state of the present invention.

Reference signs:

1——Front mold 2——Back mold 3——Mold cavity

4——Mold core 5——Groove 6——Press booster

7——Material inlet 8——Material outlet 9——Material storage tank

10——Splitting channel 11——Guide pillar 12——Guide sleeve

13——pivot 14——fastening block 15——fastening piece

16——limit screw

Detailed ways:

Below in conjunction with accompanying drawing, the utility model is further described, see shown in Fig. 1～Fig. 6, this is a preferred embodiment of the present utility model:

A kind of mold for molding rubber products, which includes a front mold 1 and a rear mold 2, the rear mold 2 is provided with a mold cavity 3, the front mold 1 is provided with a mold core 4 matching the mold cavity 3, and the front mold 1 A locking device is arranged between the back mold and the rear mold 2.

In the production process, after the front mold 1 and the rear mold 2 are closed, the front mold 1 and the rear mold 2 are locked by the locking device, and the rubber is heated and formed in the cavity surrounded by the front mold 1 and the rear mold 2. Due to the restraining effect of the locking device, the front mold 1 and the rear mold 2 will not be dislocated due to the expansion of the rubber, so there is no need to apply pressure to the front mold 1 or the rear mold 2 from the outside. Therefore, only one automatic operation is required. The feeding and heating equipment and multiple molds of the utility model can realize automatic operation, improve production efficiency, and save 50% of the manufacturing cost compared with the current production cost.

Wherein, the locking device may specifically be: it includes a pivot 13 pivotally connecting the front mold 1 and the rear mold 2, and a buckling device; the buckling device includes a buckling block 14 arranged on the front mold 1, And a fastening piece 15 arranged on the rear mold 2 and matched with the fastening block 14 . During use, the rear mold 2 is fixed on the frame, and when the mold is opened, the mold can be opened by rotating the front mold 1 around the pivot 13; After molding, rotate the snap-fit piece 15 so that the snap-fit piece 15 is fastened to the snap-fit block 14, and under the joint constraints of the pivot 13 and the snap-fit device, the front mold 1 and the rear mold 2 are locked tight.

Of course, the locking device can also be a locking device arranged on both sides of the front mold 1 and the rear mold 2, so that the purpose of mold locking can be achieved by buckling the two locking devices respectively, and when the mold is opened, The front mold 1 and the rear mold 2 can be separated by sequentially opening the two fastening devices.

Wherein, the fastening device may also be a locking screw-nut assembly, or other fastening devices that can realize locking and unlocking functions.

Described front mold 1 is provided with the groove 5 that matches with described mold core 4, and described mold core 4 is arranged in described groove 5, is provided with between described mold core 4 and described groove 5 bottoms. The pressing part 6 and the two ends of the pressurizing part 6 are respectively fixedly connected with the bottom of the groove 5 and the core 4 .

The front mold 1 is used for clamping the mold core 4, the mold core 4 is used for forming and ejecting the product, the rear mold 2 is used for forming the product, and the shape of the mold cavity 3 is formed in accordance with the required pattern shape of the product. Under the condition of heating, the pressurizing part 6 can generate pressure to make the mold core 4 compress the rear mold 2, so that the imported rubber raw material can be formed into a product.

The mold core 4 described in the utility model is made movable, and a booster 6 is arranged between the mold core 4 and the groove 5 of the front mold 1, and the booster 6 is a spring or an air bag. After the mold is closed, the mold core 4 exerts pressure on the product in the mold cavity 3 under the action of the pressure booster 6, which further enhances the pressure-holding effect of the mold, improves the good rate of the finished product of the rubber product, and improves the utility model. A new kind of productivity.

The front die 1 described in the present embodiment is provided with at least two mold cores 4, and the number of the mold cavity 3 and the groove 5 is the same as the number of the mold cores 4, wherein the mold cores 4 are independent of each other.

The front die 1 described in the present embodiment is provided with at least two mold cores 4, and the number of the mold cavity 3 and the groove 5 is the same as the number of the mold cores 4, wherein the mold cores 4 are interconnected.

Of course, the mold core 4 can also be set to be fixedly connected with the front mold 1, and the mold does not need to be provided with a pressure booster 6. And generate pressure, under the locking state of described front mold 1 and back mold 2, the expansion pressure of rubber raw material can make it mold in the inner cavity of mould. Since the pressurizing part 6 is not provided, the mold processing cost is low.

The front die 1 described in this embodiment is provided with a feed port 7, and the feed port 7 communicates with the groove 5, and the mold core 3 is provided with a discharge port 8, and the discharge port 8 is connected to the groove 5. The mold cavity 3 is connected. The rubber raw material is injected into the mold cavity 3 from top to bottom through the feed port 7 and the discharge port 8 .

The rear mold 2 described in this embodiment is provided with a feed port 7 , and the feed port 7 communicates with the mold cavity 3 . The rubber raw material is injected into the mold cavity 3 from bottom to top through the feed port 7 .

The feed port 7 and the discharge port 8 can also be arranged on the sides of the front mold 1 and the back mold 2, and the rubber raw material is injected into the mold cavity 3 from the side through the feed port 7 and the discharge port 8. The quantity of feed inlet 7 and discharge outlet 8 can be set according to needs, and the quantity is not limited.

The front mold 1 or the rear mold 2 described in this embodiment is also respectively provided with a material storage tank 9 and a material distribution channel 10 , and the material storage tank 9 and the feed port 7 are communicated through the material distribution channel 10 . The rubber raw material is injected from the storage tank 9, and flows into the feed port 7 through the distribution channel 10. The feeding method is not limited to this case.

In this embodiment, the front mold 1 is provided with a guide post 11 or a guide sleeve 12 , and the rear mold 2 is provided with a guide sleeve 12 or a guide post 11 . The guide post 11 and the guide sleeve 12 play the role of positioning and guiding.

In this embodiment, one side edge of the front mold 1 and one side edge of the rear mold 2 are connected through the front rotating shaft 13 , or a connection method of upper and lower mold clamping, and the connection method is not limited to these two.

Also be provided with limit screw 16 on the front mold 1. The precision of limit screw 16 reaches 0.1cm, by adjusting the precision of limit screw 16, when opening mold, limit screw 16 can limit the ejection stroke of die core 4.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the present utility model. Although the utility model has been described in detail with reference to the preferred embodiments, those skilled in the art Personnel should understand that the technical solution of the utility model can be modified or equivalently replaced without departing from the essence and scope of the technical solution of the utility model.

Claims (10)

1. rubber product molding mould is characterized in that: comprise front mould and back mould, back mould is provided with die cavity, and front mould is provided with the mould stamen with the die cavity coupling, described front mould and afterwards be provided with lock uint between the mould.

2. a kind of rubber product molding mould according to claim 1 is characterized in that: described lock uint comprises the pivot that front mould and back mould are articulated, and buckling device; Described buckling device comprises the binding block that is arranged at front mould, and the buckling piece that is arranged at the back mould and is complementary with described binding block.

3. a kind of rubber product molding mould according to claim 2, it is characterized in that: described front mould is provided with the groove with described mould stamen coupling, described mould stamen is arranged in the described groove, being provided with the supercharging part between described mould stamen and the described bottom portion of groove, fixedlys connected with described mould stamen with described bottom portion of groove respectively in supercharging part two ends.

4. a kind of rubber product molding mould according to claim 3 is characterized in that: described supercharging part is spring and/or air bag.

5. a kind of rubber product molding mould according to claim 3 is characterized in that: described front mould is provided with at least two mould stamen, and the number of described die cavity and described groove is identical with the number of described mould stamen, and wherein, described mould stamen is separate.

6. a kind of rubber product molding mould according to claim 3 is characterized in that: described front mould is provided with at least two mould stamen, and the number of described die cavity and described groove is identical with the number of described mould stamen, and wherein, described mould stamen is interconnective.

7. a kind of rubber product molding mould according to claim 3 is characterized in that: described front mould is provided with charging aperture, and described charging aperture is communicated with described groove, and described mould stamen is provided with discharging opening, and described discharging opening is communicated with described die cavity.

8. a kind of rubber product molding mould according to claim 3 is characterized in that: described front mould is provided with charging aperture, and described charging aperture is communicated with described die cavity.

9. according to claim 7 or 8 described a kind of rubber product molding moulds, it is characterized in that: described front mould or back mould also are respectively arranged with stock chest and sub-material road, and stock chest and charging aperture are communicated with by the sub-material road.

10. according to any described a kind of rubber product molding mould of claim 1～8, it is characterized in that: described front mould is provided with guide pillar or guide pin bushing, and described back mould is provided with guide pin bushing or guide pillar.

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