CN113681835A

CN113681835A - Forming mold, vulcanizing machine and rubber part forming method

Info

Publication number: CN113681835A
Application number: CN202110899254.1A
Authority: CN
Inventors: 许光日; 晏苗; 刘超奇
Original assignee: Zhejiang Tiantie Industry Co Ltd
Current assignee: Zhejiang Tiantie Industry Co Ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-23

Abstract

The invention relates to a molding die, a vulcanizer and a molding method for rubber parts. The molding die is used for molding a rubber piece with a skeleton, and includes: a first template; a second template, which is arranged below the first template; a groove; wherein, when the forming die is in a closed state, the forming body is integrated, and the through hole, the groove, the first template and the second template form a cavity, the The cavity is used for accommodating injection raw materials; in the demolding state of the molding die, the molding body is separated to separate from the finished product. Through the present invention, the rubber piece with convex ribs can be molded, the structure is simple, the molding cost is reduced, the operation is convenient, and the production efficiency is improved.

Description

Forming mold, vulcanizing machine and rubber part forming method

Technical Field

The invention relates to the technical field of molding, in particular to a molding die, a vulcanizing machine and a rubber part molding method.

Background

At present, the damping and noise reduction equipment is realized by adopting rubber. Compared with the common rubber part, the rubber part forming structure with the boss rib is more complex in forming and difficult in mold stripping. The traditional mould for molding rubber products cannot be produced in large scale.

Therefore, designing a forming mold for a rubber product with a boss rib to meet the production requirement of vulcanization equipment is a technical problem which needs to be solved urgently at present.

Therefore, in view of the above-mentioned drawbacks, the present inventors have studied and designed a forming mold by combining the experience and results of the related industries for many years through their extensive research and design to overcome the above-mentioned drawbacks.

Disclosure of Invention

The invention aims to provide a forming die, a vulcanizing machine and a rubber piece forming method. The device is simple in structure and convenient to operate, solves the technical problems in the prior art, and effectively improves the production benefit.

According to the present invention, there is provided a molding die comprising: a first template; the second template is arranged below the first template; the forming body is provided with a through hole which is communicated up and down, and the inner wall of the through hole is provided with a plurality of grooves; the molding body is combined in a matched mode of the molding mold, and the through hole, the groove, the first template and the second template form a cavity which is used for containing injection raw materials; and under the demoulding state of the forming mould, the forming body is separated to be separated from a finished product.

In some embodiments, the forming body comprises a first slide block and a second slide block which are slidably arranged on the second template, and the first slide block and the second slide block slide towards each other to combine the forming body; the first sliding block and the second sliding block slide back to each other so that the forming body is separated.

In some embodiments, further comprising: the supporting plate is arranged below the second template; the inclined guide post group is V-shaped or inverted V-shaped and comprises a first inclined guide post and a second inclined guide post, wherein the first inclined guide post penetrates through the second template and the first sliding block, and the second inclined guide post penetrates through the second template and the second sliding block; the second template is lifted relative to the supporting plate, and the first inclined guide post and the second inclined guide post stir the first sliding block and the second sliding block to slide in opposite directions or in a back-to-back direction, so that the forming body is combined or separated.

In some embodiments, the pallet extends in a direction toward the second form with a first locking portion extending through the second form with an inner surface in sliding engagement with a lower portion of the outer surface of the compact, and/or the first form extends in a direction toward the second form with a second locking portion with an inner surface in sliding engagement with an upper portion of the outer surface of the compact.

In some embodiments, the inner surface of the first locking portion and the lower portion of the outer surface of the molded body are both inclined surfaces; and/or the inner surface of the second locking part and the upper part of the outer surface of the forming body are inclined planes.

In some embodiments, two sides of the first slider and/or two sides of the second slider are respectively provided with a guide member, the guide members extend along a sliding direction of the first slider and the second slider, and the first slider and/or the second slider slide along the guide members.

In some embodiments, a first positioning assembly is disposed between the first template and the second template; and/or a second positioning assembly is arranged between the second template and the supporting plate.

In some embodiments, the second template is provided with a catch or latch; the supporting plate is provided with a locking hook or a locking buckle; the supporting plate and the second template are locked and fixed by matching the lock hook and the lock catch.

In some embodiments, further comprising: and the supporting plates are fixed on two opposite sides of the second template.

In some embodiments, the first template and/or the second template defines one or more injection ports in communication with the chamber.

In some embodiments, a plurality of the injection ports are in communication with one another.

In some embodiments, the first mold plate extends in a direction toward the second mold plate with an extension portion, the extension portion extends into the through hole and abuts against the second mold plate, and a gap for the injection material to flow into is formed between the extension portion and the inner wall of the through hole; the grooves are communicated in sequence to form a spiral shape.

According to the present invention there is also provided a vulcanizer comprising: a forming die as in any of the embodiments mentioned above.

In some embodiments, the method comprises: a frame; the upper hot plate is arranged on the frame; the lower hot plate is arranged on the frame, wherein the upper hot plate can be relatively close to or far away from the lower hot plate; the first template of the forming mold is arranged on the upper hot plate, and the second template of the forming mold is arranged on the lower hot plate.

In some embodiments, further comprising: and the jacking mechanism is used for jacking the second template so as to separate the second template from the supporting plate of the forming mold.

According to the present invention, there is also provided a rubber member molding method applied to the molding die according to any one of the above-mentioned embodiments, the rubber member molding method including: the forming body is combined with the first template and the second template to form a cavity; injecting rubber feedstock into the chamber; the forming body is separated and separated from the formed rubber piece.

In some embodiments, the forming die comprises a first slide block, a second slide block and a diagonal guide post set; the molded body assembly includes: the second template ascends or descends relative to the inclined guide post group, so that the inclined guide post group stirs the first slide block and the second slide block to slide oppositely to form a combined body; the molded body is divided into bodies including: the second template descends or ascends relative to the inclined guide post group, so that the inclined guide post group stirs the first sliding block and the second sliding block to slide backwards to form a split body.

As can be seen from the above, the injection mold of the present invention has the following effects:

1. the mold is simple in design, the production efficiency is improved, the processing cost is reduced, the operation is convenient, and the problem of difficult mold stripping is solved; the appearance of the product is beautiful, the integral grade is improved, and the novel field of the vulcanization technology is broken through.

2. The product has excellent performance, stable flatness and perfect appearance.

The details of the present invention can be obtained from the following description and the attached drawings.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate examples of the present invention and, together with the description, further serve to explain the principles of the invention and to enable a person skilled in the pertinent art to make and use the disclosure.

Fig. 1 shows a schematic structural view of a rubber member of an embodiment of the present invention.

Fig. 2 shows a schematic half-sectional structure of the forming die of the present invention.

Fig. 3A shows a top view of a first template of the present invention.

Fig. 3B shows a front view of the first template of the present invention.

FIG. 4A shows a schematic view of the shaped body of the present invention in a split state.

Fig. 4B shows a schematic diagram of the demolded state of the molding die of the present invention.

Fig. 5 shows a flow chart of the rubber member molding method of the present invention.

Detailed Description

As shown in fig. 1 to 4B, an embodiment of the present invention provides a forming mold 100, which can be used for forming a rubber member 200 (shown in fig. 1) with a rib 1.

The molding die 100 may include a first template 2, a second template 5, and a molded body 3.

The first template 2 may be an upper template of the molding die 100, and the second template 5 may be a lower template of the molding die and disposed below the first template 4. The first template 2 is movable up and down relative to the second template 5. For example, it may be that the first template 2 is held stationary and the second template 5 is moved closer to or further away from the first template 2. Also for example, the second template 5 may be held stationary and the first template 2 moved closer to or further away from the second template 5.

The molded body 3 is disposed between the first template 2 and the second template 5. The forming body 3 is provided with a through hole which is communicated up and down, and the inner wall of the through hole is provided with a plurality of grooves 34 corresponding to the convex ribs 1 of the rubber piece.

In the state where the molding die 100 is clamped, the molded body 3 is combined, and the through hole, the first mold plate 2, and the second mold plate 5 form a closed cavity for filling with an injection material, which may be rubber in a molten state, to mold a rubber material. In the state where the molding die 100 is released, the molded body 3 is separated (shown in fig. 4A and 4B) to release the finished product (e.g., rubber member). Wherein the shape of the chamber is adapted to the shape of the rubber member 200.

In one example, one or more injection ports 13 may be opened in the first mold plate 2 to communicate with the cavity, and the molten injection rubber raw material is filled into the cavity from top to bottom through the injection ports 13 of the first mold plate 2. In another example, one or more injection ports 13 communicating with the cavity may be opened in the second mold plate 5, and the molten injection rubber raw material fills the cavity from bottom to top through the injection ports of the second mold plate 5. Wherein, the cavity is filled from top to bottom by the injection raw materials, the filling is quicker by the self gravity of the injection raw materials, and the molding efficiency is improved. The injection raw materials fill the cavity from bottom to top, the flow rate is slow, the filling is more uniform and full, and the performance of the molded rubber piece is more stable. In another example, one or more injection ports 13 may be opened in both the first mold plate 2 and the second mold plate 5, so as to greatly increase the feeding speed.

The injection port 13, which may also be referred to as a gate, may be located at a middle position and formed in a bell mouth shape with a small top and a large bottom, so that feeding is faster, more efficient, and feeding is also balanced.

In other embodiments, as shown in fig. 3A, a plurality of injection ports 13 are provided, and the plurality of injection ports 13 are communicated with each other. For example, four injection ports 13 that communicate with each other are formed in a cross shape, two opposing injection ports 13 communicate with each other through a groove, and the injection ports 13 located at four end points of the cross shape are formed downward as needle-like holes and penetrate to the chamber. But not limited thereto, the number of the injection ports 13 may be three, for example, three injection ports 13 may be arranged in a triangular shape. The number of injection ports 13 may also be more.

The plurality of injection ports 13 are communicated with one another, so that feeding is faster and efficiency is improved; the raw materials flow into the cavity through a plurality of points, so that the feeding is more balanced, and the performance of the formed rubber part is better; even if one of the injection ports 13 is blocked, feeding is not affected, and the device is more reliable.

The first mold plate 2 may be connected to an upper hot plate of a vulcanizer as a fixed mold plate, and may be moved up and down to be close to or far from the molded body 3 by following the upper hot plate. The second template 5 can be used as a movable template and connected with a lower hot plate on a vulcanizing machine, and moves along the horizontal direction along with the lower hot plate. When the mold closing device is used, the forming body 3 is positioned on the second template 5, the first template 2 moves to the opening of the through hole pressed on the forming body 3 along with the upper hot plate on the vulcanizing machine close to the forming body 3, so that the through hole, the first template 2 and the second template 5 jointly form a cavity, and the mold closing operation is completed. Next, the molten rubber liquid is injected into the injection port 13, the entire cavity is filled, pressure is maintained by the upper and lower hot plates, and cooling is performed to mold the rubber body 200. Then, the molding die 100 is released, specifically, the first die plate 2 is separated from the molded body 3 following the upper hot plate, the second die plate 5 and the molded body 3 are pulled out together with the lower hot plate in the horizontal direction, and then the molded body 3 is separated and separated from the rubber member, thereby completing the release of the molding die.

According to the forming die provided by the embodiment of the invention, the grooves matched with the convex ribs of the rubber part are arranged on the inner wall of the through hole of the forming body 3, the injection raw material is filled into the cavity at one time by using an injection process to form the rubber part with the framework, and the formed rubber part is separated in a combined and separated mode through the forming body 5, so that the forming die is simple in structure and convenient to demould; the injection process is adopted for one-step molding, the operation is convenient, and the production efficiency is improved.

In some embodiments, the first mold plate 2 has an extension 22 extending toward the second mold plate 5, the extension 22 extends into the through hole and abuts against the second mold plate 5, and a gap for the injection material to flow into is formed between the extension 22 and the inner wall of the through hole; the grooves 34 are sequentially communicated with each other to form a spiral shape.

As shown in fig. 3A and 3B, the first template 2 is substantially rectangular, a columnar extension portion 22 extends downward from the middle position of the bottom surface of the first template 2, the columnar extension portion 22 extends into the through hole of the forming body 3 and abuts against the upper surface of the second template 6, and a gap is formed between the through hole and the extension portion 22. The columnar extension part 22 is matched with the hollow part of the hollow cylindrical rubber piece, and the spiral groove 34 is matched with the convex rib 1 on the outer wall of the rubber piece 200. In a state where the molding die 100 is clamped, the clearance between the through hole and the extension portion 22, the spiral groove 23, and the first die plate 2 and the second die plate 5 together form a cavity matching the rubber member 200.

However, the forming mold 100 of the present invention is not limited to forming the hollow rubber member 200 with the spiral ribs on the outer wall as shown in fig. 1, and in other embodiments, the first mold plate 2 may not have the extension portion 22, so as to form a solid rubber member. In addition, a plurality of recesses that the through-hole inner wall of formed body 3 set up also can be non-intercommunicating, for example, a plurality of recesses are certain regular dispersion and arrange, or irregular dispersion and arrange to form the rubber spare of multiple form. The size and shape of the plurality of grooves may be the same or different, for example, the cross section of the grooves may be semicircular, rectangular, etc.

In some embodiments, as shown in fig. 4A, the forming body 3 includes a first slider 31 and a second slider 32, the first slider 31 and the second slider 32 are respectively slidably disposed on the second mold plate 5, and the first slider 31 and the second slider 32 can slide toward each other or slide away from each other. Wherein, under the mold closing state of the forming mold, the first slide block 31 and the second slide block 32 are combined; in the mold-released state of the molding die, the first slider 31 and the second slider 32 are separated.

The first slider 31 and the second slider 32 divide the through hole of the molded body 3 into two semicircular holes to form a half structure. During the mold clamping process, the first slider 31 and the second slider 32 can slide toward each other in a horizontal direction (e.g., left-right direction), i.e., move toward each other, so that the first slider 31 and the second slider 32 are combined to form a complete through hole. During the demolding process of the molding die, the first slider 31 and the second slider 32 may slide back to back along a horizontal direction (e.g., a left-right direction) and move away from each other, so that the first slider 31 and the second slider 32 are separated to separate from the molded rubber member.

The mode that the first sliding block 31 and the second sliding block 32 slide oppositely or slide back to back is convenient for the integrated or split operation, particularly in the demoulding process, the rubber part with the convex ribs can be easily demoulded without disassembling the forming body 3, the operation is convenient, the labor cost is reduced, and the forming efficiency is further improved.

In some embodiments, as shown in fig. 2 and 4B, the forming mold of the present invention further includes a supporting plate 6 and an inclined guide pillar group 10 in addition to the upper mold plate 2, the lower mold plate 5 and the forming body 3.

The pallet 6 is disposed below the second form 5. The second template 5 may be attached to the lower hot plate of the vulcanizer by means of a pallet 6. Specifically, a mounting hole 15 can be formed in the supporting plate 6, and the supporting plate 6 penetrates through the mounting hole 15 through a fastener to be fixedly connected with a lower hot plate of the vulcanizing machine.

The inclined guide post group 10 may be fixed on the supporting plate 6, and may be symmetrically provided with two groups, where each group of inclined guide posts includes a first inclined guide post 101 and a second inclined guide post 102, respectively. The first inclined guide post 101 penetrates through the second template 5 and the first slider 31, and is inclined with respect to the central axis of the through hole. The second oblique guide post 102 penetrates the second die plate 5 and the second slider 32, and is disposed obliquely with respect to the center axis through which it passes, and the first oblique guide post 101 are disposed symmetrically with respect to the center axis of the through hole. The first inclined guide post 101 and the second inclined guide post 102 may be V-shaped or inverted V-shaped. The supporting plate 6 is raised or lowered relative to the second template 5, so that the first and second inclined guide posts 101 and 102 move the first and

second sliders

31 and 32 to slide towards or away from each other.

In one example, the first and second

diagonal guide posts

101 and 102 are in a "V" shape, the second template 5 is raised relative to the pallet 6, the first and

second sliders

31 and 32 slide in a direction away from each other, i.e., back-to-back sliding, the second template 5 is lowered relative to the pallet 6, and the first and

second sliders

31 and 32 slide in a direction closer to each other, i.e., opposite to each other.

In another example, the first and second

diagonal guide posts

101 and 102 are inverted "v" shaped, the second die plate 5 is raised relative to the pallet 6, the first and

second sliders

31 and 32 slide toward each other, i.e., slide toward each other, the second die plate 5 is lowered relative to the pallet 6, and the first and

second sliders

31 and 32 slide away from each other, i.e., slide away from each other.

The second template 5 is lifted or lowered relative to the pallet 6, the pallet 6 may be stationary, and the second template 5 is lifted or lowered; it is also possible that the second template 5 is stationary and the pallet 6 is raised or lowered.

Supporting plates 14 can be arranged on two opposite sides of the second template 5, and a telescopic rod of a jacking mechanism of the vulcanizing machine pushes against the supporting plates 14 to drive the second template 5 to lift.

As shown in fig. 2, 4A and 4B, the first and second oblique guide posts 101 and 102 are in a V-shaped structure. In an initial state, the supporting plate 6 is fixed on a lower hot plate of the vulcanizing machine, a jacking mechanism of the vulcanizing machine jacks up the second template 5 relative to the supporting plate 6, and the first slide block 31 and the second slide block 32 are in a split state.

The mold closing process of the forming mold is as follows: the jacking mechanism of the vulcanizing machine descends to drive the second template 5 and the first slide block 31 and the second slide block 32 on the second template to descend along the two V-shaped first inclined guide columns 101 and the two V-shaped second inclined guide columns 102 respectively, the two first inclined guide columns 101 and the two second inclined guide columns 102 respectively stir the first slide block 31 and the second slide block 32 to move towards each other, namely, to be close to each other, when the second template 5 moves to be in contact with the supporting plate 6, the first slide block 31 and the second slide block 32 are combined to form a complete through hole, then the first template 2 moves to an opening of the through hole pressed in the forming body 3 along with the upper hot plate on the vulcanizing machine close to the forming body 3, so that the through hole, the first template 2 and the second template 5 form a cavity together, and the die assembly operation is completed.

Then, molten rubber liquid is injected into the injection port, the whole cavity is filled, pressure is maintained through the upper hot plate and the lower hot plate, cooling is carried out, grooves are arranged on the inner wall of the through hole of the forming body 3, and the rubber liquid is formed into a rubber body with convex ribs 1 on the surface after cooling.

The demolding process of the molding die 100 is as follows: firstly, the first template 2 is far away from the forming body 3 (the first slide block 31 and the second slide block 32) along with the upper hot plate, and the first demoulding is completed; then, the second template 5 and the forming body 3 move and are pulled out along the horizontal direction along with the lower hot plate, then, a jacking mechanism of the vulcanizing machine jacks up the second template 5 relative to the supporting plate 6, so that the second template 5 is separated from the supporting plate 6, and secondary demolding is finished; then, the first slider 31 and the second slider 32 respectively ascend along the two v-shaped first and second inclined guide posts 101 and 102, and the two first and second inclined guide posts 101 and 102 respectively poke the first slider 31 and the second slider 32 to move back to back, i.e. move away from each other, so that the first slider 31 and the second slider 31 are separated to separate from the rubber member, and the third demolding is completed. The second demolding and the third demolding are performed simultaneously, that is, the second mold plate 5 jacks up the supporting plate 6, and the first slider 31 and the second slider 32 are separated from the rubber part, so that the demolding efficiency can be greatly improved.

It should be noted that the first slider 31 and the second slider 32 slide in opposite directions or in opposite directions, and are not limited to the toggle driving of the slanted guide post set 10 in an integrated or separated manner, and in other embodiments, the first slider and the second slider may be driven by a horizontal telescopic mechanism, such as an air cylinder or a hydraulic cylinder. The linear driving mechanism can also be used for driving, for example, a motor is matched with a lead screw nut pair, so that the rotary motion of the motor is converted into the horizontal movement of the nut, and the first sliding block 31 and/or the second sliding block 32 are/is driven to slide. The first slide block 31 and/or the second slide block 32 can also be driven to slide by electromagnetic driving and by powering on and powering off the magnet.

In some embodiments, as shown in fig. 4A, the guide 7 is disposed on each of two sides of the first slider 31 and/or two sides of the second slider 32, the guide 7 extends along the sliding direction of the first slider 31 and the second slider 32, and the first slider 31 and/or the second slider 32 slides along the guide 7. The guide blocks 7 may be provided only on both sides of the first slider 31; guides may be provided only on both sides of the second slider 32; it is also possible to provide guides 7 on both sides of the first slider 31 and on both sides of the second slider 32. The guide member 7 plays a role in guiding the first slider 31 and/or the second slider 32, so that the first slider 31 and the second slider 32 move relatively or more stably in the process of moving back to back, and the first slider 31 and the second slider 32 are prevented from being separated from the second template 5.

In one example, the guide member 7 may be a guide block including a side plate and a top plate, the side plate being engaged with a side edge of the first slider 31 and/or the second slider 32 to guide in the sliding direction (horizontal direction). The top plate is pressed on the edge of the top surface of the first sliding block 31 and/or the second sliding block 32, and plays a role in limiting in the vertical direction, so that the first sliding block 31 and/or the second sliding block 32 are prevented from being separated from the second template 5.

But not limited thereto, the guide 7 may also be a slide rail provided on the second template 5, along which the first slider 31 and/or the second slider 32 slide toward or away from each other in the sliding direction.

In some embodiments, as shown in fig. 2, the pallet 6 has a first locking portion 61 extending in a direction toward the second form 5, the first locking portion 61 passing through the second form 5 and having an inner surface slidably engaged with a lower portion of the outer surface of the forming body 3. An annular hole is formed in the second template 5 at a position corresponding to the first locking portion 61, and the first locking portion 61 may be annular and pass through the annular hole. The inner surface of the first locking portion 61 and the outer surface of the molded body 3 may be inclined surfaces 4, and locking is performed by inclined surface fitting. In the process that the first slider 31 and the second slider 32 slide in opposite directions or slide in opposite directions, the lower portion of the outer surface of the first slider 31 and the lower portion of the outer surface of the second slider 32 respectively abut against the surface of the first locking portion 61 and slide along the inclined surface 4, and the molded body 3 is locked in the first locking portion 61 in the state that the molded body 3 is combined, so that the molded body 3 and the first template 2 are matched tightly, and the molding quality can be improved.

In other embodiments, as shown in fig. 2, the first template 2 is extended with a second locking portion 13 toward the second template 5, the inner surface of the second locking portion 13 is slidably fitted with the upper portion of the outer surface of the molded body 3, and the molded body 3 is located in the second locking portion 13 in the state that the molded body 3 is assembled.

The upper part of the outer surface of the first slide block 31 and the upper part of the outer surface of the second slide block 32 form a first inclined surface, correspondingly, the second locking portion 13 can be annular, the inner surface of the annular forms a second inclined surface matched with the first inclined surface, in the process that the first slide block 31 and the second slide block 32 slide close to each other or far away from each other, the first inclined surface formed on the upper parts of the outer surfaces of the first slide block 31 and the second slide block 32 is in sliding fit with the second inclined surface formed on the inner surface of the second locking portion 13, so that the first slide block 31 and the second slide block 32 are limited, and in the state that the molded body 3 is combined, the molded body 3 is locked through the second locking portion 13, the mold combination is tighter, and the molding quality can be improved.

In some embodiments, a first positioning assembly is disposed between the first template 2 and the second template 5; and/or a second positioning component is arranged between the second template 5 and the supporting plate 6.

In an example, the first positioning component includes a first positioning hole 91 and a first positioning pin 81 corresponding to the first positioning hole 91, wherein the first positioning hole 91 may be disposed in the second template 5, and the first positioning pin 81 is disposed in the first template 2, extends toward the second template 5, and may protrude into the first positioning hole 91. In the die closing process, the first positioning hole 91 is matched with the first positioning pin 81, so that the positioning operation is facilitated, and the die closing is more accurate and convenient. Alternatively, the first positioning hole 91 is provided in the first die plate 2, and the first positioning pin 81 is provided in the second die plate 5, extends in the direction of the first die plate 2, and can protrude into the first positioning hole 91.

In another example, the second positioning assembly includes a second positioning hole 92 and a second positioning pin 82 corresponding to the second positioning hole 92, wherein the second positioning hole 92 is disposed on the supporting plate 6, and the second positioning pin 82 is disposed on the second mold plate 5, extends toward the supporting plate 6, and is capable of extending into the second positioning hole 92. In the mold closing process, the second positioning hole 92 and the second positioning pin 82 are matched, so that the positioning operation is convenient, and the mold closing is more accurate and convenient. Alternatively, the second positioning hole 92 is provided in the second die plate 5, and the second positioning pin 82 is provided in the second blade 6, extends toward the second die plate 5, and is capable of protruding into the second positioning hole 92.

As described above, the positions of the first positioning pin 81 and the first positioning hole 91 provided in the first die plate 2 and the second die plate 5 can be interchanged. The second positioning pins 82 and the second positioning holes 92 can be interchanged in the second template 5 and the pallet sheet.

In some embodiments, the second formwork 5 is provided with a latch 12, the supporting plate 6 is provided with a latch 11, and the latch 11 cooperates with the latch 12 to lock the supporting plate 6 and the second formwork 5 together for the hoisting operation.

In another example, a latch 11 is disposed on the second formwork 5, and a latch 12 is disposed on the supporting plate 6, and the latch 11 cooperates with the latch 12 to lock the supporting plate 6 and the second formwork 5 for the hoisting operation. In other words, the second template 5 and the supporting plate 6 can be locked by the locking hook 11 and the locking buckle 12, and the arrangement positions of the locking hook 11 and the locking buckle 12 can be interchanged with each other.

According to an embodiment of the present invention, there is also provided a vulcanizing machine including the forming mold mentioned in any one of the above embodiments.

In some embodiments, the curing press includes a frame, an upper hot plate and a lower hot plate disposed on the frame. The upper platen can be relatively close to or far from the lower platen. The upper hot plate can lift along the guide post. The lower heat plate is movable in a horizontal direction. Wherein, the first template 2 of the forming die is arranged on the upper hot plate and goes up and down along with the upper hot plate. The second platen 5 of the molding die is provided on the lower hot plate and moves in the horizontal direction following the lower hot plate.

The first pattern plate 2 can be connected as a fixed pattern plate with an upper hot plate on a vulcanizer and can be lifted up and down to approach or separate from the molded body 3 along with the upper hot plate. The second template 5 can be used as a movable template and connected with a lower hot plate on a vulcanizing machine, and moves along the horizontal direction along with the lower hot plate. When the mold closing device is used, the forming body 3 is positioned on the second template 5, the first template 2 moves to the opening of the through hole pressed on the forming body 3 along with the upper hot plate on the vulcanizing machine close to the forming body 3, so that the through hole, the first template 2 and the second template 5 jointly form a cavity, and the mold closing operation is completed. Next, the molten rubber liquid is injected into the injection port 13, the entire cavity is filled, pressure is maintained by the upper and lower hot plates, and cooling is performed to mold the rubber body 200. Then, the molding die 100 is released, specifically, the first die plate 2 is separated from the molded body 3 following the upper hot plate, the second die plate 5 and the molded body 3 are pulled out together with the lower hot plate in the horizontal direction, and then the molded body 3 is separated and separated from the rubber member, thereby completing the release of the molding die.

According to the vulcanizing machine provided by the embodiment of the invention, the grooves matched with the convex ribs of the rubber part are arranged on the inner wall of the through hole of the forming body 3, the injection raw material is filled into the cavity at one time by using an injection process to form the rubber part with the framework, and the formed rubber part is separated in a split mode through the forming body 3, so that the vulcanizing machine is simple in structure and convenient to demold; the injection process is adopted for one-step molding, the operation is convenient, and the production efficiency is improved.

In some embodiments, the vulcanizer further comprises a jacking mechanism for jacking the second platen 5 to disengage the second platen 5 from the pallet 6 of the injection molding mold. Supporting plates 14 can be arranged on two opposite sides of the second template 5, and a telescopic rod of a jacking mechanism of the vulcanizing machine pushes against the supporting plates 14 to drive the second template 5 to lift. The jacking mechanism may be a hydraulic cylinder.

As shown in fig. 2, 4A and 4B, as described above, the first and second oblique guide posts 101 and 102 are in a v-shaped structure. In an initial state, the supporting plate 6 is fixed on a lower hot plate of the vulcanizing machine, a jacking mechanism of the vulcanizing machine jacks up the second template 5 relative to the supporting plate 6, and the first slide block 31 and the second slide block 32 are in a split state.

The mold closing process of the forming mold is as follows: the jacking mechanism of the vulcanizing machine descends to drive the second template 5 and the first slide block 31 and the second slide block 32 on the second template to descend along the two V-shaped first inclined guide columns 101 and the second inclined guide columns 102 respectively, the two first inclined guide columns 101 and the second inclined guide columns 102 respectively stir the first slide block 31 and the second slide block 32 to move towards each other, namely, to be close to each other, when the second template 5 moves to be in contact with the supporting plate 6, the first slide block 31 and the second slide block 32 are combined to form a complete through hole, then the first template 2 moves to an opening of the through hole pressed in the forming body 3 along with the upper hot plate on the vulcanizing machine close to the forming body 3, so that the through hole, the first template 2 and the second template 5 form a cavity together, and the die assembly operation is completed.

Then, molten rubber liquid is injected into the injection port, the whole cavity is filled, pressure is maintained through the upper hot plate and the lower hot plate, cooling is carried out, grooves are arranged on the inner wall of the through hole of the forming body 3, and the rubber liquid is formed into a rubber body with convex ribs on the surface after cooling.

As an example, when the vulcanizing machine is used specifically, the product structure is realized through the original mechanical structure of the vulcanizing machine without adding a mechanism device. The fixed die (the first template 2) fixes an upper bracket (an upper hot plate) of the machine table by using bolts; the inclined guide post fixing plate (supporting plate 6) is fixed to a machine table sliding plate (lower hot plate) by bolts; the movable mould plate (second mould plate 5) is jacked up by a machine reset lower supporting plate (jacking mechanism) and utilizes the inclined guide post to separate the slide blocks (the first slide block 31 and the second slide block 32), and the slide blocks are folded by utilizing the inclined guide post when the reset lower supporting plate is put down. The injection is performed through a flow channel dividing point (a plurality of injection ports 13). The mold is simple in design, the production efficiency is improved, the processing cost is reduced, and the operation is convenient; the appearance of the product is beautiful, the integral grade is improved, and the novel field of the vulcanization technology is broken through.

According to an embodiment of the present invention, there is further provided a rubber member molding method 300 applied to the molding die of any of the above embodiments, the rubber member molding method includes step S11, step S12, and step S13.

In step S11, the molded bodies 3 are combined with each other to form a cavity together with the first template 2 and the second template 5. The first die plate 2 and the second die plate 5 are respectively pressed on the upper and lower openings of the through hole of the forming body 3, thereby forming a shape matching with the rubber (shown in fig. 1).

In step S12, a rubber material is injected into the chamber. As mentioned above, the first mold plate 2 may be provided with one or more injection ports 13 communicating with the cavity, and the molten injection rubber raw material is filled into the cavity from top to bottom through the injection ports 13 of the first mold plate 2. In another example, one or more injection ports 13 communicating with the cavity may be opened in the second mold plate 5, and the molten injection rubber raw material fills the cavity from bottom to top through the injection ports of the second mold plate 5. Wherein, the cavity is filled from top to bottom by the injection raw materials, the filling is quicker by the self gravity of the injection raw materials, and the molding efficiency is improved. The injection raw materials fill the cavity from bottom to top, the flow rate is slow, the filling is more uniform and full, and the performance of the molded rubber piece is more stable. In another example, one or more injection ports 13 may be opened in both the first mold plate 2 and the second mold plate 5, so as to greatly increase the feeding speed. The injection port 13, which may also be referred to as a gate, may be located at a middle position and formed in a bell mouth shape with a small top and a large bottom, so that feeding is faster, more efficient, and feeding is also balanced.

In some embodiments, as shown in fig. 3A, the injection port 13 is provided in plurality, and the plurality of injection ports 13 communicate with each other. For example, four injection ports 13 that communicate with each other are formed in a cross shape, two opposing injection ports 13 communicate with each other through a groove, and the injection ports 13 at four end points are formed downward as needle-like holes and penetrate to the chamber. But not limited thereto, the number of the injection ports 13 may be three, for example, three injection ports 13 may be arranged in a triangular shape. The number of injection ports 13 may also be more.

In step S13, the molded body 3 is separated and detached from the molded rubber member. The rubber raw material in the cavity is subjected to pressure maintaining through the upper hot plate and the lower hot plate, and then is cooled, and the cooled rubber liquid is combined with the framework to form the rubber body. And then, demoulding the forming mold, specifically, moving the first template 2 away from the forming body 3 along with the upper hot plate, moving the second template 5 and the forming body 5 along with the lower hot plate along the horizontal direction, pulling out, separating the forming body 3 from the rubber piece, and completing the demoulding operation of the forming mold.

In some embodiments, the forming mold includes a first slider 31, a second slider 32, and a diagonal guide pillar group 10;

step S11 includes: the second template 5 ascends or descends relative to the inclined guide post group 10, so that the inclined guide post group 10 drives the first slide block 31 and the second slide block 32 to slide and combine oppositely;

step S13 includes: the second template 5 descends or ascends relative to the inclined guide group 10, so that the inclined guide column group 10 drives the first slide block 31 and the second slide block 32 to slide back to the split body.

As mentioned above, the diagonal guide post may be "V" shaped or inverted "V" shaped. The supporting plate 6 is raised or lowered relative to the second template 5, so that the first and second inclined guide posts 101 and 102 move the first and

second sliders

31 and 32 to slide towards or away from each other.

In one example, the first and second

diagonal guide posts

second sliders

In another example, the first and second

diagonal guide posts

second sliders

31 and 32 slide away from each other, i.e., slide away from each other.

The term "plurality" as used herein means two or more, and other terms are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In the above description, the terms "first", "second", and the like are used to describe various information, but the information should not be limited to these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present invention.

In the above description, the terms "center", "longitudinal", "lateral", "front", "rear", "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present embodiment and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and be operated.

In the above description, unless otherwise specified, "connected" includes a direct connection between the two without any other member, and also includes an indirect connection between the two with any other element.

It should be apparent that the foregoing description and illustrations are by way of example only and are not intended to limit the present disclosure, application or uses. While embodiments have been described in the embodiments and depicted in the drawings, the present invention is not limited to the particular examples illustrated by the drawings and described in the embodiments as the best mode presently contemplated for carrying out the teachings of the present invention, and the scope of the present invention will include any embodiments falling within the foregoing description and the appended claims.

Claims

1. A molding die, comprising:

a first template;

the second template is arranged below the first template;

the forming body is provided with a through hole which is communicated up and down, and the inner wall of the through hole is provided with a plurality of grooves;

the molding body is combined in a matched mode of the molding mold, and the through hole, the groove, the first template and the second template form a cavity which is used for containing injection raw materials; and under the demoulding state of the forming mould, the forming body is separated to be separated from a finished product.

2. The molding die according to claim 1,

the forming body comprises a first sliding block and a second sliding block which are arranged on the second template in a sliding mode, and the first sliding block and the second sliding block slide oppositely to enable the forming body to be combined; the first sliding block and the second sliding block slide back to each other so that the forming body is separated.

3. The molding die of claim 2, further comprising:

the supporting plate is arranged below the second template;

the inclined guide post group is V-shaped or inverted V-shaped and comprises a first inclined guide post and a second inclined guide post, wherein the first inclined guide post penetrates through the second template and the first sliding block, and the second inclined guide post penetrates through the second template and the second sliding block;

the second template is lifted relative to the supporting plate, and the first inclined guide post and the second inclined guide post stir the first sliding block and the second sliding block to slide in opposite directions or in a back-to-back direction, so that the forming body is combined or separated.

4. The molding die according to claim 3,

the supporting plate extends towards the second template to form a first locking part, the first locking part penetrates through the second template, the inner surface of the first locking part is in sliding fit with the lower part of the outer surface of the forming body, and/or,

and a second locking part extends from the first template towards the second template, and the inner surface of the second locking part is in sliding fit with the upper part of the outer surface of the forming body.

5. The molding die according to claim 4,

the inner surface of the first locking part and the lower part of the outer surface of the forming body are inclined planes; and/or the presence of a gas in the gas,

the inner surface of the second locking part and the upper part of the outer surface of the forming body are inclined planes.

6. The molding die according to claim 2 or 3,

the two sides of the first sliding block and/or the two sides of the second sliding block are respectively provided with a guide piece, the guide pieces extend along the sliding direction of the first sliding block and the second sliding block, and the first sliding block and/or the second sliding block slide along the guide pieces.

7. The molding die according to claim 3,

a first positioning assembly is arranged between the first template and the second template; and/or the presence of a gas in the gas,

and a second positioning assembly is arranged between the second template and the supporting plate.

8. The molding die according to claim 3 or 7,

the second template is provided with a lock catch or a lock hook;

the supporting plate is provided with a locking hook or a locking buckle;

the supporting plate and the second template are locked and fixed by matching the lock hook and the lock catch.

9. The molding die according to claim 1,

the first template and/or the second template are/is provided with one or more injection ports communicated with the cavity.

10. The molding die of claim 9,

the plurality of injection ports are communicated with each other.

11. The molding die according to any one of claims 1 to 3,

the first template extends towards the second template to form an extension part, the extension part extends into the through hole and abuts against the second template, and a gap for the injection raw material to flow into is formed between the extension part and the inner wall of the through hole; the grooves are communicated in sequence to form a spiral shape.

12. A vulcanizer characterized by comprising:

the forming die of any one of claims 1-12;

a frame;

the upper hot plate is arranged on the frame;

the lower hot plate is arranged on the frame, wherein the upper hot plate can be relatively close to or far away from the lower hot plate;

the first template of the forming mold is arranged on the upper hot plate, and the second template of the forming mold is arranged on the lower hot plate.

13. The vulcanizer of claim 12, further comprising:

and the jacking mechanism is used for jacking the second template so as to separate the second template from the supporting plate of the forming mold.

14. A rubber member molding method applied to the molding die according to any one of claims 1 to 11, the rubber member molding method comprising:

the forming body is combined with the first template and the second template to form a cavity;

injecting rubber feedstock into the chamber;

the forming body is separated and separated from the formed rubber piece.

15. The method for molding a rubber member according to claim 14, wherein the molding die comprises a first slide block, a second slide block and a diagonal guide post group;

the molded body assembly includes:

the second template ascends or descends relative to the inclined guide post group, so that the inclined guide post group stirs the first slide block and the second slide block to slide oppositely to form a combined body;

the molded body is divided into bodies including:

the second template descends or ascends relative to the inclined guide post group, so that the inclined guide post group stirs the first sliding block and the second sliding block to slide backwards to form a split body.