Mold for manufacturing rubber product

Abstract

The invention discloses a mold for manufacturing a rubber product, and relates to the technical field of rubber product production, the mold comprises a mouth mold and a pre-mouth mold, the mouth mold and the pre-mouth mold are assembled through a sealing mechanism, the upper part of the pre-mouth mold is provided with an injection port communicated with the interior of the pre-mouth mold, the exterior of the mouth mold is provided with a cooling mechanism, and the cooling mechanism is connected with the mouth mold. The cooling mechanism comprises an annular sleeve arranged on the outer side wall of the mouth-shaped die in a sleeving mode, the interior of the annular sleeve is of a hollow structure, an annular baffle is vertically arranged in the annular sleeve and divides the interior of the annular sleeve into a cooling cavity and a neutralizing cavity, and the cooling cavity is close to the innermost side of the annular sleeve. According to the mold for manufacturing the rubber product, when cold water is injected into the annular sleeve to cool the mold, the cold water in the cooling cavity can continuously flow back into the neutralizing cavity to be neutralized with the cold water, so that the temperature of the cooled water is not too high, and the cooling effect on the mold can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber product production, in particular to a mold for manufacturing rubber products. Background Art

[0002] As rubber products are used more and more widely in all walks of life, the quality and performance requirements of rubber products are getting higher and higher. In the production process of rubber products, molds play a vital role. They directly affect the shape, size and performance of the product. Therefore, it is of great significance to study new molds for manufacturing rubber products. Rubber products are generally composed of a combination of pre-mouth and mouth.

[0003] The current rubber product molds have the following defects:

[0004] 1. After the rubber product raw materials are injected into the mold, they need to be cooled and molded. Currently, they are cooled by flowing cold water. However, when the cold water contacts the mold, the high temperature of the mold increases the temperature of the cold water, thereby reducing its cooling effect.

[0005] 2. During injection molding, the mold is prone to leakage due to sealing problems. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides a mold for manufacturing rubber products, which solves the problem of poor cooling and sealing effects of traditional rubber product molds.

[0007] To achieve the above objectives, the present invention is implemented through the following technical scheme: a mold for manufacturing rubber products, including a mouth mold and a pre-mouth mold, the mouth mold and the pre-mouth mold are assembled through a sealing mechanism, and the upper part of the pre-mouth mold is provided with an injection port communicating with the interior thereof, and the outside of the mouth mold is provided with a cooling mechanism.

[0008] The cooling mechanism includes an annular sleeve which is sleeved on the outer wall of the die. The interior of the annular sleeve is a hollow structure, and an annular baffle is vertically arranged in the annular sleeve. The annular baffle divides the interior of the annular sleeve into two areas, a cooling chamber and a neutralization chamber. The cooling chamber is close to the innermost side of the annular sleeve, and a plurality of annular partitions 1 are longitudinally equidistantly arranged in the cooling chamber. The annular partition 1 divides each cooling chamber into a plurality of small spaces, and one side of the annular baffle is located in each small space and is respectively provided with an inlet hole and a reflux hole from bottom to top. An annular partition 2 is arranged in the neutralization chamber between the inlet hole and the reflux hole. Each annular partition 2 also divides the neutralization chamber into a plurality of small spaces. The upper and lower sides of the annular sleeve are respectively provided with a water inlet and a drain.

[0009] Preferably, the water inlet and the water outlet are both communicated with the interior of the neutralization chamber.

[0010] Preferably, a plurality of the inlet holes and the reflow holes are arranged at equal distances, and the inlet holes and the reflow holes are distributed in an annular shape on the outer wall of the annular baffle.

[0011] Preferably, the annular baffle is made of ceramic material.

[0012] Preferably, a limit strip is horizontally provided on the inner wall of the injection port, a turbine fan is provided at the lower part of one end of the limit strip, the turbine fan is located at the central axis of the injection port, and blades are provided on each blade of the turbine fan.

[0013] Preferably, the sealing mechanism includes an annular groove arranged on the upper part of the mouth mold and an annular groove at the lower part of the pre-mouth mold. An annular positioning block is longitudinally slidably arranged inside the annular groove. The mouth mold and the pre-mouth mold can be assembled by inserting the annular positioning block into the annular groove at the lower part of the pre-mouth mold, thereby playing a role of sealing and preventing dislocation.

[0014] Preferably, a water-swellable pad is fixedly provided at the bottom of the annular positioning block, and the bottom of the water-swellable pad is fixedly provided on the inner lower side of the annular groove. An annular gap groove is provided at the upper part of the mouth mold at the inner side of the annular positioning block, and a slurry inlet hole communicating with the interior of the annular groove is provided at the lower part of the inner wall of the annular gap groove.

[0015] Preferably, a plurality of slurry inlet holes are equidistantly arranged, and are distributed in a ring shape on the inner wall of the annular gap groove, and the slurry inlet holes correspond to the positions of the water-swellable pads inside the annular groove.

[0016] Preferably, a limit rod is connected to one side of the turbine fan at a position above its blades, one end of the limit rod is connected to a moving ball, the inner wall of the injection port is hinged with a movable rod, one end of the movable rod is connected to a fixed ball, and one side of the movable rod is connected to the inner wall of the injection port by an elastic strip, and the moving ball at one end of the limit rod will collide with the fixed ball once each time the limit rod rotates one circle.

[0017] The present invention provides a mold for manufacturing rubber products, which has the following beneficial effects compared with the prior art:

[0018] 1. When cold water is injected into the annular sleeve to cool the mold for manufacturing rubber products, the cold water in the cooling chamber can continuously flow back to the neutralization chamber to be neutralized with the cold water, so that the cooling water temperature will not be too high, thereby improving the cooling effect on the mold.

[0019] 2. The mold for manufacturing rubber products is provided with a sealing mechanism. When the mold leaks slurry, the slurry will first enter the annular groove through the annular gap groove and the slurry inlet hole and contact the water-swellable pad, thereby driving the annular positioning block to move and make it fit tightly with the top side of the annular groove, thereby preventing the slurry from leaking out and achieving a good sealing effect. The annular positioning block is inserted into the annular groove to prevent dislocation, thereby preventing the quality of rubber product processing from being affected by the dislocation of the mouth mold and the pre-mouth mold.

[0020] 3. When the slurry is added to the injection port of the rubber product manufacturing mold, the high-speed movement of the slurry can drive the turbine fan to rotate, and the worm fan drives the blade to rotate. The blade can crush the agglomerated slurry, thereby improving the quality of mold molding.

[0021] 4. The mold for manufacturing rubber products can make the moving ball constantly collide with the fixed ball when the worm wheel rotates. Under the elasticity of the elastic strip, the fixed ball will quickly reset after being collided, so that the injection port will vibrate and the raw materials attached to the inner wall of the injection port will be shaken off. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the disassembly of the structure of the present invention;

[0024] Figure 3 It is a structural schematic diagram of the cooling mechanism of the present invention;

[0025] Figure 4 It is a structural schematic diagram of the injection port of the present invention;

[0026] Figure 5 It is a schematic diagram of the connection structure between the die and the pre-die of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the sealing mechanism of the present invention;

[0028] Figure 7 It is a plan view of the injection port structure of the present invention.

[0029] In the figure: 1. Mouth mold; 2. Pre-mouth mold; 3. Sealing mechanism; 31. Annular groove; 32. Annular slot; 33. Annular positioning block; 34. Water-expandable pad; 35. Annular gap groove; 36. Slurry inlet hole; 4. Injection port; 41. Limit strip; 42. Turbofan; 43. Blade; 44. Limit rod; 45. Moving ball; 46. Movable rod; 47. Fixed ball; 48. Elastic strip; 5. Cooling mechanism; 51. Annular sleeve; 52. Annular baffle; 53. Cooling chamber; 54. Neutralizing chamber; 55. Annular partition one; 56. Inlet hole; 57. Reflux hole; 58. Annular partition two; 59. Water inlet; 510. Drainage outlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] See also Figure 1-Figure 6 , the present invention provides four technical solutions:

[0032] Embodiment 1

[0033] See also Figure 1 and Figure 2 In an embodiment of the present invention, a mold for manufacturing a rubber product includes a die mold 1 and a pre-die mold 2. The die mold 1 and the pre-die mold 2 are assembled through a sealing mechanism 3, and an injection port 4 communicating with the interior of the pre-die mold 2 is provided on the upper portion of the pre-die mold 2, and a cooling mechanism 5 is provided on the outside of the die mold 1.

[0034] See also Figure 3 In the embodiment of the present invention, the cooling mechanism 5 includes an annular sleeve 51 sleeved on the outer wall of the die 1, the interior of the annular sleeve 51 is a hollow structure, and an annular baffle 52 is vertically arranged in the annular sleeve 51, the annular baffle 52 divides the interior of the annular sleeve 51 into two areas, a cooling chamber 53 and a neutralization chamber 54, the cooling chamber 53 is close to the innermost side of the annular sleeve 51, and a plurality of annular baffles 55 are longitudinally equidistantly arranged in the cooling chamber 53, the annular baffles 55 divide each cooling chamber 53 into a plurality of small spaces, and one side of the annular baffle 52 is located in each small space and is respectively provided with an inlet hole 56 and a reflux hole 57 from bottom to top, an annular baffle 2 58 is arranged in the neutralization chamber 54 between the inlet hole 56 and the reflux hole 57, and each annular baffle 2 58 also divides the neutralization chamber 54 into a plurality of small spaces, and a water inlet 59 and a drain outlet 510 are respectively provided on the upper and lower sides of the annular sleeve 51.

[0035] In the above scheme: after the slurry is injected, it is necessary to cool the slurry. During cooling, cold water is added to the water inlet 59. The cold water first enters the neutralization chamber 54, and then enters the cooling chamber 53 through the inlet hole 56 to cool the annular sleeve 51, and then cools the mold. After that, the cold water enters the neutralization chamber 54 through the reflux hole 57, and this process is repeated until it is discharged from the drain port 510. The cold water in the cooling chamber 53 is closest to the mold to be formed, so the water temperature in the cooling chamber 53 will be higher, while the cold water in the neutralization chamber 54 is far away from the mold to be formed, so the cold water temperature in the neutralization chamber 54 is lower. When the cold water in the cooling chamber 53 flows back to the neutralization chamber 54, it will be neutralized with the low-temperature cold water in the neutralization chamber 54, and then return to the cooling chamber 53 after neutralization, so that the water temperature for cooling the mold will never be too high, thereby improving the effect of rubber product mold forming.

[0036] For further information, see Figure 3 In the embodiment of the present invention, the water inlet 59 and the drain outlet 510 are both connected to the interior of the neutralization chamber 54, so that the injected cold water first enters the water inlet 59 and is finally discharged from the drain outlet 510, so that the water in the cooling chamber 53 can flow back to the neutralization chamber 54 for neutralization, so that the cooling water temperature will not be too high.

[0037] For further information, see Figure 3 In the embodiment of the present invention, a plurality of inlet holes 56 and reflux holes 57 are evenly spaced, and each inlet hole 56 and each reflux hole 57 are distributed in a ring shape on the outer wall of the annular baffle 52, so that the cold water can evenly flow back into the neutralization chamber 54, thereby improving the neutralization effect of the cold water.

[0038] For further information, see Figure 3 In the embodiment of the present invention, the annular baffle 52 is made of ceramic material, which is a high temperature resistant and heat insulating material, so that the water temperature in the neutralization cavity 54 will be affected by the mold temperature, thereby lowering the temperature of the high temperature cooling water during neutralization.

[0039] It should be added that the annular baffle 52 is not limited to being made of ceramic material, but may also be made of other high temperature resistant and heat-insulating materials.

[0040] The second embodiment is different from the first embodiment in that:

[0041] See also Figure 4 In the embodiment of the present invention, a limit strip 41 is horizontally arranged on the inner wall of the injection port 4, a turbine fan 42 is arranged at the lower part of one end of the limit strip 41, the turbine fan 42 is located at the central axis position of the injection port 4, and each blade of the turbine fan 42 is provided with a blade 43.

[0042] In the above scheme: when manufacturing rubber products, slurry needs to be injected into the injection port 4. The injected slurry moves at a faster speed, so when passing through the turbine fan 42, it will cause rotation. When the turbine fan 42 rotates, the blade 43 on the turbine fan 42 will cut the slurry. If agglomerated slurry is injected, the blade 43 will break it up, which is beneficial to the molding quality of the subsequent rubber products.

[0043] Embodiment 3 is different from Embodiment 1 in that:

[0044] See also Figure 5 and Figure 6 In the embodiment of the present invention, the sealing mechanism 3 includes an annular groove 31 arranged on the upper part of the mouth mold 1 and an annular groove 32 at the lower part of the pre-mouth mold 2. An annular positioning block 33 is longitudinally slidably arranged inside the annular groove 31. By inserting the annular positioning block 33 into the annular groove 32 at the lower part of the pre-mouth mold 2, the mouth mold 1 and the pre-mouth mold 2 can be assembled to play a role in sealing and preventing dislocation.

[0045] See also Figure 5 and Figure 6 In the embodiment of the present invention, a water-swellable pad 34 is fixedly provided at the bottom of the annular positioning block 33, and the bottom of the water-swellable pad 34 is fixedly provided on the inner lower side of the annular groove 31. An annular gap groove 35 is provided at the upper part of the mouth mold 1 at the inner side of the annular positioning block 33, and a slurry inlet hole 36 communicating with the inner part of the annular groove 31 is provided at the lower part of the inner wall of the annular gap groove 35.

[0046] In the above scheme: the annular groove 32 on the pre-mouth mold 2 is clamped onto the annular positioning block 33 on the mouth mold 1, so that the two are assembled. The annular positioning block 33 can prevent the mouth mold 1 and the pre-mouth mold 2 from being misaligned, and the annular positioning block 33 can also play a sealing effect. When the sealing effect decreases, the injected slurry will first flow into the annular gap groove 35, and then enter the annular groove 31 through the slurry inlet hole 36, and wet the water-swellable pad 34 in the annular groove 31. After being wetted, the water-swellable pad 34 will expand, thereby moving the annular positioning block 33 upward, and the top of the annular positioning block 33 will fit tightly against the inner top side of the annular groove 32, so that the sealing effect is improved, so that leakage of slurry will not occur.

[0047] For further information, see Figure 5 and Figure 6 In the embodiment of the present invention, a plurality of slurry inlet holes 36 are equidistantly arranged, and the slurry inlet holes 36 are distributed in a ring shape on the inner wall of the annular gap groove 35, and the slurry inlet holes 36 correspond to the position of the water-swellable pad 34 inside the annular groove 31. When the slurry leaks, the slurry will flow into the annular groove 31 evenly through each slurry inlet hole 36, thereby wetting the water-swellable pad 34.

[0048] The fourth embodiment is different from the first embodiment in that:

[0049] See also Figure 7 In the embodiment of the present invention, a limiting rod 44 is connected to one side of the turbine fan 42 at the upper position of its blades, one end of the limiting rod 44 is connected to a moving ball 45, a movable rod 46 is hinged to the inner wall of the injection port 4, one end of the movable rod 46 is connected to a fixed ball 47, and one side of the movable rod 46 is connected to the inner wall of the injection port 4 through an elastic strip 48. When the limiting rod 44 rotates one circle, the moving ball 45 at one end of the limiting rod 44 will collide with the fixed ball 47 once.

[0050] In the above scheme: when the turbine fan 42 rotates, it drives the limit rod 44 to rotate, and the limit rod 44 drives the moving ball 45 to rotate. The moving ball 45 will collide with the fixed ball 47 once every time it rotates one circle. Under the elasticity of the elastic strip 48, when the fixed ball 47 is collided, the fixed ball 47 will move to one side under the pressure. When the moving ball 45 leaves the fixed ball 47, the elastic strip 48 quickly resets the fixed ball 47. This is repeated, which can make the injection port 4 vibrate and shake off the raw materials attached to the inner wall of the injection port 4, saving raw materials.

[0051] Working principle: The annular groove 32 on the pre-mouth mold 2 is clamped onto the annular positioning block 33 on the mouth mold 1 to assemble the two. The annular positioning block 33 can prevent the mouth mold 1 and the pre-mouth mold 2 from being misaligned, and the annular positioning block 33 can also play a sealing effect;

[0052] When the sealing effect decreases, the injected slurry will first flow into the annular gap groove 35, and then enter the annular groove 31 through the slurry inlet hole 36, so as to wet the water-swellable pad 34 in the annular groove 31. The water-swellable pad 34 will expand after being wetted, so that the annular positioning block 33 will move up, and the top of the annular positioning block 33 will be tightly fitted on the inner top side of the annular groove 32, so that the sealing effect is improved, and the phenomenon of slurry leakage will not occur;

[0053] When manufacturing rubber products, slurry needs to be injected into the injection port 4. The injected slurry moves at a relatively fast speed, so when passing through the turbine fan 42, it will rotate. When the turbine fan 42 rotates, the blade 43 on the turbine fan 42 will cut the slurry. If there is agglomerated slurry when it is injected, the blade 43 will break it up, which is beneficial to the molding quality of the subsequent rubber products.

[0054] When the turbine fan 42 rotates, it drives the limit rod 44 to rotate, and the limit rod 44 drives the moving ball 45 to rotate. The moving ball 45 will collide with the fixed ball 47 once every time it rotates one circle. Under the elasticity of the elastic strip 48, when the fixed ball 47 is collided, the fixed ball 47 will move to one side under the pressure. When the moving ball 45 leaves the fixed ball 47, the elastic strip 48 quickly resets the fixed ball 47. This is repeated, which can make the injection port 4 vibrate and shake off the raw materials attached to the inner wall of the injection port 4, saving raw materials.

[0055] After the slurry is injected, it is necessary to cool the slurry. When cooling, cold water is added to the water inlet 59. The cold water first enters the neutralization cavity 54, and then enters the cooling cavity 53 through the inlet hole 56 to cool the annular sleeve 51, thereby cooling the mold. After that, the cold water enters the neutralization cavity 54 through the reflux hole 57, and this process is repeated until it is discharged from the drain port 510.

[0056] The cold water in the cooling chamber 53 is closest to the molding mold, so the water temperature in the cooling chamber 53 will be higher, while the cold water in the neutralization chamber 54 is far away from the molding mold, so the cold water temperature in the neutralization chamber 54 is lower. When the cold water in the cooling chamber 53 flows back to the neutralization chamber 54, it will be neutralized with the low-temperature cold water in the neutralization chamber 54, and then return to the cooling chamber 53 again after neutralization, so that the water temperature for cooling the mold will never be too high, thereby improving the molding effect of the rubber product mold.

[0057] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

Claims

1. A mold for manufacturing a rubber product, comprising a die (1) and a pre-die (2), characterized in that: The die mold (1) and the pre-die mold (2) are assembled via a sealing mechanism (3), and an injection port (4) communicating with the interior of the pre-die mold (2) is provided on the upper portion thereof, and a cooling mechanism (5) is provided on the exterior of the die mold (1); The cooling mechanism (5) comprises an annular sleeve (51) sleeved on the outer wall of the die (1); the interior of the annular sleeve (51) is a hollow structure, and an annular baffle (52) is vertically arranged in the annular sleeve (51); the annular baffle (52) divides the interior of the annular sleeve (51) into two areas, a cooling chamber (53) and a neutralization chamber (54); the cooling chamber (53) is close to the innermost side of the annular sleeve (51), and a plurality of annular baffles (55) are longitudinally equidistantly arranged in the interior of the cooling chamber (53); the annular baffles (55) are arranged in a longitudinal direction. Each cooling chamber (53) is divided into a plurality of small spaces, and one side of the annular baffle (52) is provided with an inlet hole (56) and a return hole (57) from bottom to top in each small space, and an annular partition plate (58) is provided in the neutralization chamber (54) at a position between the inlet hole (56) and the return hole (57), and each annular partition plate (58) also divides the neutralization chamber (54) into a plurality of small spaces, and the upper and lower sides of the annular sleeve (51) are provided with a water inlet (59) and a water outlet (510) respectively; A limiting rod (44) is connected to one side of the turbine fan (42) at a position above its blades, one end of the limiting rod (44) is connected to a moving ball (45), an inner wall of the injection port (4) is hinged with a movable rod (46), one end of the movable rod (46) is connected to a fixed ball (47), and one side of the movable rod (46) is connected to the inner wall of the injection port (4) via an elastic strip (48), and when the limiting rod (44) rotates one circle, the moving ball (45) at one end of the limiting rod (44) will collide with the fixed ball (47) once.

2. A mold for manufacturing rubber products according to claim 1, characterized in that: The water inlet (59) and the water outlet (510) are both in communication with the interior of the neutralization chamber (54).

3. A mold for manufacturing rubber products according to claim 1, characterized in that: A plurality of the inlet holes (56) and the reflow holes (57) are arranged at equal intervals, and each of the inlet holes (56) and the reflow holes (57) are distributed in an annular shape on the outer wall of the annular baffle (52).

4. A mold for manufacturing rubber products according to claim 1, characterized in that: The annular baffle (52) is made of ceramic material.

5. The mold for manufacturing rubber products according to claim 1, characterized in that: A limit strip (41) is horizontally arranged on the inner wall of the injection port (4), a turbine fan (42) is arranged at the lower part of one end of the limit strip (41), the turbine fan (42) is located at the central axis of the injection port (4), and each blade of the turbine fan (42) is provided with a blade (43).

6. A mold for manufacturing rubber products according to claim 1, characterized in that: The sealing mechanism (3) comprises an annular groove (31) arranged at the upper part of the die (1) and an annular groove (32) arranged at the lower part of the pre-die (2); an annular positioning block (33) is arranged inside the annular groove (31) for longitudinal sliding; the die (1) and the pre-die (2) can be assembled by inserting the annular positioning block (33) into the annular groove (32) at the lower part of the pre-die (2), thereby achieving the functions of sealing and preventing dislocation.

7. A mold for manufacturing rubber products according to claim 6, characterized in that: A water-swellable pad (34) is fixedly arranged at the bottom of the annular positioning block (33), and the bottom of the water-swellable pad (34) is fixedly arranged on the lower inner side of the annular groove (31). An annular gap groove (35) is arranged at the upper part of the die (1) at the inner side of the annular positioning block (33), and a slurry inlet hole (36) communicating with the inner part of the annular groove (31) is arranged at the lower part of the inner wall of the annular gap groove (35).

8. The mold for manufacturing rubber products according to claim 1, characterized in that: A plurality of slurry inlet holes (36) are arranged at equal intervals, and the slurry inlet holes (36) are distributed in an annular shape on the inner wall of the annular gap groove (35), and the slurry inlet holes (36) correspond to the positions of the water-swellable pads (34) inside the annular groove (31).

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