Vulcanization production process for circular rubber corrugated connection flat plate

Abstract

The invention provides a vulcanization production process of a circular rubber corrugated connecting flat plate. The process comprises the following steps: preparing a strip-shaped product, trimming a half-cooked rubber section of the strip-shaped product, aligning, coating a raw rubber strip to form a semi-finished product, fusing at high temperature and high pressure through a vulcanization mold to form a corrugated cover structure, and finally cooling and curing to obtain a finished product. The strip-shaped product contains cloth strips for reinforcement, and a connector part is provided with a cooked rubber section and a half-cooked rubber section so as to facilitate trimming and butt joint. By adopting the vulcanization production process, the production process is simplified, the production cost is reduced and the production efficiency is improved by optimizing the structural design of the strip-shaped product and improving the operation method of finishing and coating steps. And under the high-temperature condition, the rubber material begins to soften and flow, semi-finished products of the rubber material are fully fused and cured, and the overall strength and sealing performance of the finished product are improved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber product production, in particular to a vulcanization production process for a circular rubber corrugated connection flat plate. Background Art

[0002] In the rubber products industry, circular rubber corrugated connecting plates are widely used in various mechanical connection and sealing occasions due to their good elasticity and sealing performance.

[0003] Traditional production processes often use uniform cooked or raw rubber materials when preparing strip products, and lack structural optimization for the connector part. This makes it difficult for the connector part to be tightly combined with other parts during subsequent processing, affecting the overall strength and sealing performance of the finished product, easily leading to problems such as unstable finished product quality, and making it difficult to meet the needs of modern industrial production.

[0004] Therefore, it is necessary to provide a circular rubber corrugated connection flat plate vulcanization production process to solve the above technical problems. Summary of the invention

[0005] The invention provides a vulcanization production process for connecting a circular rubber corrugated plate, so as to solve the problems of loose connection of products and low production efficiency in the prior art.

[0006] In order to solve the above technical problems, the technical solution of the present invention is: a vulcanization production process for connecting a circular rubber corrugated plate, which comprises:

[0007] S1: preparing a strip product, wherein the strip product comprises a first connector and a second connector,

[0008] The first connector includes a first cooked rubber section and a first semi-cooked rubber section arranged in sequence;

[0009] The second connector includes a second cooked rubber section and a second semi-cooked rubber section arranged in sequence;

[0010] S2: trimming the first half-cooked rubber section and the second half-cooked rubber section;

[0011] The thickness of the first semi-cooked rubber segment gradually decreases at one end away from the first cooked rubber segment;

[0012] The thickness of the second semi-cooked rubber segment gradually decreases at one end away from the second cooked rubber segment;

[0013] S3: aligning the first half-cooked rubber segment and the second half-cooked rubber segment after the reduction;

[0014] S4: wrapping the first semi-cooked rubber segment and the second semi-cooked rubber segment with the raw rubber strip to form a semi-finished product;

[0015] S5: placing the stacked semi-finished products in a vulcanization mold;

[0016] S6: Under high temperature and high pressure conditions, the superimposed semi-finished products are fused to form a corrugated cover structure;

[0017] S7: Cooling the mold to solidify the corrugated cover structure, thereby obtaining an integrally formed circular rubber corrugated connecting plate.

[0018] In the present invention, the strip-shaped product comprises a rubber layer and a cloth strip embedded in the rubber layer.

[0019] In the present invention, the first connector further comprises a first raw fabric segment, and the first raw fabric segment is connected to the first semi-cooked rubber segment away from the first cooked rubber segment.

[0020] The second connector further comprises a second raw fabric segment, the second raw fabric segment is connected to the second semi-cooked rubber segment away from the second cooked rubber segment,

[0021] The step S1 further includes: removing the first raw fabric segment and the second raw fabric segment.

[0022] In the present invention, the ratio of the thickness of the first semi-cooked rubber segment at one end away from the first cooked rubber segment to the thickness of the first cooked rubber segment is between 1:4 and 1:2, and the length of the first semi-cooked rubber segment is between 25 mm and 35 mm.

[0023] In the present invention, the length ratio of the first raw fabric segment to the first semi-cooked rubber segment is between 2:1 and 5:3.

[0024] In the present invention, the vulcanization mold comprises:

[0025] A first module, wherein the first module is provided with a first channel, and the first channel is used for passing the strip-shaped product; and

[0026] A second mold is arranged above the first mold, the second mold is provided with a second mold cavity, and the second mold cavity is used for injection molding the semi-finished product; wherein the second mold comprises:

[0027] A second upper die, wherein a first groove is provided at a bottom end of the second upper die;

[0028] The second lower mold is relatively arranged at the bottom end of the second upper mold, and the top end of the second lower mold is provided with a second groove. A mold cavity is formed between the second upper mold and the second lower mold, and the mold cavity is used for hot injection molding to form a rubber corrugated product. The second lower mold is provided with a locking groove.

[0029] In the present invention, the vulcanization mold further comprises:

[0030] An adaptive locking mechanism comprising:

[0031] A plug-in connector, disposed at the bottom end of the second upper mold; and

[0032] An elastic lock buckle is arranged on the second lower mold, the elastic lock buckle is engaged with the plug-in component, and the second upper mold and the second lower mold are closed; and

[0033] An ejection mechanism is connected to the second lower mold, and the ejection mechanism is used to eject the rubber corrugated finished product.

[0034] In the present invention, the top end of the second lower mold is provided with a first through hole; the ejection mechanism comprises:

[0035] A fixing seat, arranged in the second lower mold;

[0036] an ejector plate, located below the fixing seat, the ejector plate being provided with an ejector pin, the ejector pin corresponding to the position of the first through hole, and the ejector pin being used to eject the product; and

[0037] A driving assembly is connected to the ejection plate and the fixing seat, and the driving assembly drives the ejection plate to move relative to the fixing seat.

[0038] In the present invention, the elastic lock comprises:

[0039] A gusset plate is disposed in the second lower mold, and the gusset plate is movably connected to the connector; and

[0040] The second elastic member is connected to the buckle plate and the second lower mold, and the second elastic member pushes the buckle plate to squeeze the connector.

[0041] In the present invention, the ejector plate is provided with a first guide hole, and the first guide hole is located on a side of the ejector plate close to the pinch plate;

[0042] The plug-in connector includes a first guide column, which is arranged at the bottom end of the second lower mold and is inserted into the first guide hole.

[0043] A first guide surface is disposed on one side of the first guide column, and the cross-sectional width of the first guide column gradually decreases downward, and the first guide surface is used to abut against the buckle plate.

[0044] Compared with the prior art, the present invention has the following beneficial effects: the circular rubber corrugated connecting plate vulcanization production process of the present invention respectively sets a first connector and a second connector at both ends of the strip product, and each connector is formed by a cooked rubber segment and a semi-cooked rubber segment arranged in sequence; the cooked rubber segment has high strength and stability, while the semi-cooked rubber segment has certain plasticity and adhesion. In the trimming step, the present invention gradually reduces the thickness of the first semi-cooked rubber segment and the second semi-cooked rubber segment to form a conical or inclined structure. This trimming method helps the accuracy of alignment and coating operations in subsequent steps, and improves production efficiency and finished product quality. In the coating step, the present invention uses a raw rubber strip to coat the trimmed semi-cooked rubber segment to form a semi-finished product; the close combination of the raw rubber strip and the semi-cooked rubber segment provides a sufficient material basis for the subsequent vulcanization process.

[0045] The vulcanization production process of the present invention simplifies the production process, reduces production costs, and improves production efficiency by optimizing the structural design of the strip product and improving the operation methods of the trimming and coating steps. Under high temperature conditions, the rubber material begins to soften and flow, and the semi-finished products of the rubber material are fully fused and solidified, thereby improving the overall strength and sealing performance of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. The drawings described below are only drawings corresponding to some embodiments of the present invention.

[0047] Figure 1 The process flow chart of the preferred embodiment of the present invention.

[0048] Figure 2 It is a schematic structural diagram of a rubber vulcanizing machine according to a preferred embodiment of the present invention.

[0049] Figure 3 It is a schematic diagram of the strip product structure of the first embodiment of the present invention.

[0050] Figure 4 It is a schematic structural diagram of a first connector and a second connector according to a first embodiment of the present invention.

[0051] Figure 5 It is a schematic diagram of the semi-finished product structure of the first embodiment of the present invention.

[0052] Figure 6 It is a side view of a vulcanization mold according to the first embodiment of the present invention.

[0053] Figure 7 The cross section of the vulcanization mold of the first embodiment of the present invention is Figure 1 .

[0054] Figure 8 FIG. 4 is a top view of the second module according to the first embodiment of the present invention.

[0055] Fig. 9 The cross section of the vulcanization mold of the first embodiment of the present invention is Figure 2 .

[0056] Fig.10 for Fig. 9 A magnified view of the structure at A.

[0057] Fig.11 for Fig. 9 Enlarged view of the structure at B.

[0058] Fig.12 It is a schematic diagram of the partial structure of the finished strip product of the second embodiment of the present invention.

[0059] Fig.13 Schematic diagram of the strip product structure of the second embodiment of the present invention.

[0060] Fig.14 It is a cross-sectional view of a vulcanization mold according to a third embodiment of the present invention.

[0061] Fig.15 It is a schematic diagram of the overall structure of the second mold of the third embodiment of the present invention.

[0062] Fig.16 It is a cross-sectional view of the second mold structure of the third embodiment of the present invention.

[0063] Fig.17 Schematic diagram of an adaptive locking mechanism according to a third embodiment of the present invention.

[0064] Fig.18 The adaptive locking mechanism of the third embodiment of the present invention is in use Figure 1 .

[0065] Fig.19 The adaptive locking mechanism of the third embodiment of the present invention is in use Figure 2 .

[0066] Fig. 20 The adaptive locking mechanism of the third embodiment of the present invention is in use Figure 3 .

[0067] Reference numerals: 1, second module; 11, second upper mold; 111, first groove; 12, second lower mold; 13, mold cavity; 131, first upper splicing plate; 1311, first plug-in block; 1312, first plug-in groove; 132, second upper splicing plate; 1321, second plug-in block; 133, first locking screw; 134, third upper splicing plate; 135, first lower splicing plate; 1351, third plug-in block; 1352, third plug-in groove; 136, second lower splicing plate; 1361 , fourth plug-in slot; 137, second locking screw; 138, third upper splicing plate; 2, rubber vulcanizer; 21, upper hot plate; 22, lower hot plate; 3, first module; 31, first upper mold; 32, first lower mold; 33, first channel; 41, first connector; 411, first cooked rubber section; 412, first semi-cooked rubber section; 413, first raw cloth section; 42, second connector; 421, second cooked rubber section; 422, second semi-cooked rubber section; 423, second raw cloth section; 43, raw rubber strip.

[0068] Second embodiment: 1a, second mold group; 11a, second upper mold; 12a, second lower mold; 13a, mold cavity; 3a, first mold group; 31a, first upper mold; 32a, first lower mold; 33a, first channel; 41a, first connector; 42a, second connector; 44, second flange edge; 45, first flange edge.

[0069] Third embodiment: 1b, second die set; 11b, second upper die; 111, first groove; 112, anti-slip block; 12b, second lower die; 121, second groove; 122, locking groove; 123, first through hole; 124, positioning groove; 125, second guide hole; 126, anti-slip groove; 13b, die cavity; 14, adaptive locking mechanism; 141, connector; 1411, first guide column; 1412, first guide surface; 1413, limit block ; 1414, limiting surface; 142, positioning block; 143, elastic lock; 1431, buckle plate; 1432, second elastic member; 1433, positioning column; 1434, mounting plate; 144, ejection mechanism; 1441, fixing seat; 1442, ejection plate; 14421, first guide hole; 14422, fixing surface; 1443, first elastic member; 1444, ejector pin; 145, reset rod; 146, second guide column; 15, sealing strip. DETAILED DESCRIPTION

[0070] 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 those skilled in the art without creative work are within the scope of protection of the present invention.

[0071] The directional terms mentioned in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "side", "top" and "bottom", are only for reference to the orientation of the drawings. The directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0072] The terms "first", "second", etc. in the present invention are used for descriptive purposes only and should not be understood as indicating or implying relative importance, and should not be used as a limitation on the order of precedence.

[0073] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] The following is a preferred embodiment of a vulcanization production process for a circular rubber corrugated connection plate provided by the present invention that can solve the above technical problems.

[0075] Please refer to Figure 1 , Figure 2 and Figure 3 ,in Figure 1 The process flow chart of the preferred embodiment of the present invention. Figure 2 It is a schematic structural diagram of a rubber vulcanizing machine according to a preferred embodiment of the present invention. Figure 3 It is a schematic diagram of the strip product structure of the first embodiment of the present invention.

[0076] In the figures, structurally similar elements are denoted by the same reference numerals.

[0077] The present invention provides a vulcanization production process for a circular rubber corrugated connection plate, which comprises:

[0078] 1. Materials and preparation.

[0079] S1: Prepare strip products.

[0080] like Figure 3 and Figure 4 As shown, the strip-shaped product includes a strip-shaped product prepared with a first connecting head 41 and a second connecting head 42, and each connecting head includes a cooked rubber section and a semi-cooked rubber section.

[0081] The strip product in this embodiment includes a first connector 41 and a second connector 42. The first connector 41 is composed of a first cooked rubber segment 411 and a first semi-cooked rubber segment 412, and the second connector 42 is composed of a second cooked rubber segment 421 and a second semi-cooked rubber segment 422. The cooked rubber segment has a high degree of vulcanization and provides stable connection performance; the semi-cooked rubber segment has a certain degree of flexibility, which is convenient for subsequent processing and connection.

[0082] The strip product in this embodiment includes a rubber layer and a cloth strip embedded in the rubber layer, and the cloth strip extends out of the rubber layer to form a raw cloth segment. The raw cloth segment acts as a skeleton in the rubber layer, which can enhance the structural stability of the entire strip product and make it more durable; at the connector part, the raw cloth segment is tightly combined with the rubber layer to form a more secure connection interface. When the strip product needs to be connected or spliced, the raw cloth segment can provide additional connection strength to ensure that the connection is not easy to break.

[0083] like Figure 5 As shown, if the strip product includes a first raw fabric segment 413 and a second raw fabric segment 423, these raw fabric segments need to be removed in step S1 to facilitate the subsequent coating and vulcanization of the raw rubber strip 43. In this embodiment, the first connector 41 also includes a first raw fabric segment 413, which is connected to the first semi-cooked rubber segment 412 away from the first cooked rubber segment 411; the second connector 42 also includes a second raw fabric segment 423, which is connected to the second semi-cooked rubber segment 422 away from the second cooked rubber segment 421.

[0084] S2: trimming the semi-cooked rubber segment: trimming the first semi-cooked rubber segment 412 and the second semi-cooked rubber segment 422 so that the thickness of the ends away from the cooked rubber segment gradually decreases. The trimmed first connector 41 and the second connector 42 have the following structures: Figure 5 shown.

[0085] The first semi-cooked rubber section 412 and the second semi-cooked rubber section 422 are trimmed to gradually reduce the thickness of the end away from the cooked rubber section to facilitate subsequent alignment and connection. The trimmed semi-cooked rubber section thickness ratio to the cooked rubber section thickness is between 1:4 and 1:2, and the length is between 25mm and 35mm to ensure the stability and strength of the connection.

[0086] The dimensions of the first connector 41 in this embodiment are preferably as follows: the thickness of the first cooked rubber section 411 is preferably 8 mm, the thickness of the first raw cloth section 413 is 0.5 mm, the length of the first semi-cooked rubber section 412 is 30 mm, the thickness of the end of the first semi-cooked rubber section 412 away from the first cooked rubber section 411 is 3 mm, and the length of the first raw cloth section 413 is 50 mm. The dimensions of the second connector 42 are substantially the same as those of the first connector 41, and are not described in detail herein.

[0087] 2. The formation of semi-finished products.

[0088] S3: Aligning the trimmed semi-cooked rubber segments: Aligning the trimmed first semi-cooked rubber segment 412 and the second semi-cooked rubber segment 422. Figure 5 shown.

[0089] S4: The raw rubber strip 43 covers the first semi-cooked rubber segment 412 and the second semi-cooked rubber segment 422 to form a semi-finished product. The raw rubber strip 43 will be filled between the two semi-cooked rubber segments to form a tight connection.

[0090] 3. Injection molding and vulcanization.

[0091] S5: Place the semi-finished product in the vulcanization mold, such as Figure 6 shown.

[0092] The semi-finished product is placed in a vulcanization mold, which includes a first mold group 3 and a second mold 1. The first mold group 3 is provided with a first channel 33 for passing the strip product; the second mold is arranged above the first mold, including a second upper mold 11 and a second lower mold 12.

[0093] like Figure 7 As shown, a first groove 111 is provided at the bottom of the second upper mold 11, a second groove 121 is provided at the top of the second lower mold 12, and a mold cavity 13 is formed between the second upper mold 11 and the second lower mold 12 for hot injection molding to form a rubber corrugated finished product.

[0094] The stacked semi-finished products are placed in the mold cavity 13 of the vulcanization mold to ensure that the strip-shaped products are correctly inserted into the mold. The first module 3 and the second module 1 in this embodiment have roughly the same structure, which will not be described in detail here. Figure 8 and Fig. 9 , taking the second module 1 in this embodiment as an example, the structure of the vulcanization mold is described in detail as follows:

[0095] The second upper mold 11 is formed by sequentially splicing a plurality of upper splicing plates, which is convenient for processing and replacing the groove and is suitable for vulcanization connection of strip products of various lengths and sizes.

[0096] Combination Fig. 9 , Fig.10 and Fig.11In this embodiment, the second upper mold 11 at least includes a first upper splicing plate 131 and a second upper splicing plate 132. A first plug-in block 1311 is provided at one end of the first upper splicing plate 131, and a first plug-in slot 1312 is provided at the other end of the first upper splicing plate 131; a second plug-in block 1321 is provided at one end of the second upper splicing plate 132, and a second plug-in slot is provided at the other end of the second upper splicing plate 132, wherein the first plug-in block 1311 is plugged into the second plug-in slot. The first plug-in slot 1312 is used to plug and lock other upper splicing plates, for example, a third upper splicing plate 134 is installed at the end of the first upper splicing plate 131 away from the second upper splicing plate 132; the second plug-in block 1321 is used to plug and lock other upper splicing plates, for example, a fourth upper splicing plate is installed at the end of the second upper splicing plate 132 away from the first upper splicing plate 131, thereby extending the length of the second upper mold 11 and improving the practicality of the vulcanization mold structure.

[0097] Furthermore, a first mounting hole is provided on the first plug-in block 1311, and a second mounting hole is correspondingly provided on the second upper splicing plate 132. The first mounting hole corresponds to the second mounting hole and is connected by a first locking screw 133. A combination of plug-in and locking is adopted between the upper splicing plates, and each upper template has a precise mounting hole and locking screw to ensure parallelism and tightness during splicing.

[0098] Combination Fig. 9 , Fig.10 and Fig.11 The structure of the second lower mold 12 is substantially the same as that of the second upper mold 11. The second lower mold 12 is formed by sequentially splicing a plurality of lower splicing plates, which is convenient for processing and replacing the mold grooves and is suitable for vulcanization connection of strip products of various lengths. The second lower mold 12 in this embodiment comprises at least a first lower splicing plate 135 and a second lower splicing plate 136. A third plug-in block 1351 is provided at one end of the first lower splicing plate 135, and a third plug-in groove 1352 is provided at the other end of the first lower splicing plate 135; a fourth plug-in block is provided at one end of the second lower splicing plate 136, and a fourth plug-in groove 1361 is provided at the other end of the second lower splicing plate 136, wherein the third plug-in block 1351 is plugged into the fourth plug-in groove 1361. The third plug-in slot 1352 is used for plugging and locking other lower splicing plates, for example, installing a third lower splicing plate on the end of the first lower splicing plate 135 away from the second lower splicing plate 136; the fourth plug-in block is used for plugging and locking other lower splicing plates, for example, installing a fourth lower splicing plate on the end of the second lower splicing plate 136 away from the first lower splicing plate 135, thereby extending the length of the second lower mold 12 and improving the practicability of the vulcanization mold structure.

[0099] Furthermore, a third mounting hole is provided on the third plug-in block 1351, and a fourth mounting hole is correspondingly provided on the second lower splicing plate 136. The third mounting hole corresponds to the fourth mounting hole and is connected by a second locking screw 137. A combination of plug-in and locking is adopted between the plurality of lower connecting plates, and each lower connecting plate has a precise mounting hole and a locking screw for matching connection, so as to ensure parallelism and tightness during splicing.

[0100] The length of a single spliced ​​plate in this embodiment is about 1.5 meters. If a strip product of 6 meters in length needs to be vulcanized, the vulcanization is performed through a spliced ​​mold to reduce the mold cost.

[0101] S6: Under high temperature and high pressure conditions, the semi-finished products are fused to form a corrugated cover structure, such as Fig.12 shown.

[0102] The structures of the first mold group 3 and the second mold 1 are arranged opposite to each other, the second lower mold 12 is connected to the lower hot plate 22 in the rubber vulcanizer 2, and the first upper mold 31 is connected to the upper hot plate 21 in the rubber vulcanizer 2.

[0103] 4. Cooling and demoulding

[0104] S7: Cooling the mold and solidifying the bellows: Cooling the mold to solidify the bellows structure, thereby obtaining an integrally formed circular rubber bellows.

[0105] S8: demoulding.

[0106] The vulcanization production process of the present invention simplifies the production process, reduces production costs, and improves production efficiency by optimizing the structural design of the strip product and improving the operation methods of the trimming and coating steps. Under high temperature conditions, the rubber material begins to soften and flow, and the semi-finished products of the rubber material are fully fused and solidified, thereby improving the overall strength and sealing performance of the finished product.

[0107] The second implementation structure of the strip product and the vulcanization mold in the vulcanization production process of the circular rubber corrugated connecting plate of the present invention is provided as follows:

[0108] The strip product structure in this embodiment is as follows Fig.13 As shown. A first flange edge 45 is provided at one end of the long side of the strip product in the extending direction, and a second flange edge 44 is provided at the other end of the long side of the strip product. The strip product in this embodiment includes a first connector 41a and a second connector 42a on both sides. The first connector 41a and the second connector 42a are connected to form a circular rubber corrugated hose with a flange. The first connector 41a is composed of a first cooked rubber segment 411 and a first semi-cooked rubber segment 412, and the second connector 42a is composed of a second cooked rubber segment and a second semi-cooked rubber segment. The cooked rubber segment has a high degree of vulcanization, providing stable connection performance; the semi-cooked rubber segment has a certain flexibility, which is convenient for subsequent processing and connection.

[0109] Combination Fig.14 The second implementation structure of the vulcanization mold in this embodiment, the vulcanization mold includes a first mold group 3a and a second mold 1a. The first mold group 3a is provided with a first channel 33a, which is used to penetrate the middle part of the strip product in this embodiment; the second mold 1a is arranged above the first mold 3a, and the second mold 1a includes a second upper mold 11a and a second lower mold 12a. The bottom end of the second upper mold 11a is provided with a first groove, and the top end of the second lower mold 12a is provided with a second groove. A cavity 13a is formed between the second upper mold 11a and the second lower mold 12a, and the cavity 13a is used for hot injection molding to form a rubber corrugated finished product.

[0110] The stacked semi-finished products are placed in the mold cavity 13a of the vulcanization mold to ensure that the strip product is correctly inserted into the mold.

[0111] The first module 3a includes a first upper module 31a and a first lower module 32a, and the first upper module 31a and the first lower module 32a are combined to form a first channel 33a. The structures of the first module 3a and the second module 1a are arranged oppositely, the second lower module 12a is connected to the lower hot plate in the rubber vulcanizer, and the first upper module 31a is connected to the upper hot plate in the rubber vulcanizer.

[0112] The production steps of the strip product in this embodiment are roughly the same as those of the strip product in the first embodiment, and are not described in detail here. The strip product in this embodiment is provided with a first flange edge 45 and a second flange edge 44 at both ends of the long side, so that the flanged rubber corrugated round tube is easy to connect with other equipment or pipelines. The first channel on the first module is specially designed to penetrate the middle part of the strip product in this embodiment, ensuring the accurate positioning of the strip product in the mold. At the same time, the mold cavity formed between the upper and lower molds of the second mold perfectly adapts to the shape of the strip product with flange, so that the material can be evenly distributed during the hot injection molding process, forming a high-quality rubber bellows finished product.

[0113] The third implementation structure of the vulcanization mold in the vulcanization production process of the circular rubber corrugated connection flat plate of the present invention is provided as follows:

[0114] Combination Fig.16The third implementation structure of the vulcanization mold in this embodiment, the vulcanization mold includes a first mold group and a second mold 1b. The first mold group is provided with a first channel 33b, which is used to insert the middle part of the strip product in this embodiment; the second mold 1b is arranged above the first mold 3b, and the second mold 1b includes a second upper mold 11b and a second lower mold 12b. The bottom end of the second upper mold 11b is provided with a first groove, and the top end of the second lower mold 12b is provided with a second groove. A cavity 13b is formed between the second upper mold 11b and the second lower mold 12b, and the cavity 13b is used for hot injection to form a rubber corrugated finished product. The stacked semi-finished product is placed in the cavity 13b of the vulcanization mold to ensure that the strip product is correctly inserted into the mold.

[0115] The present invention provides a vulcanization mold for use with a rubber vulcanizer. The first mold group includes a first upper mold and a first lower mold, and the first upper mold and the first lower mold are combined to form a first channel 33b. The second lower mold 12b is connected to a lower hot plate in the rubber vulcanizer, and the first upper mold is connected to an upper hot plate in the rubber vulcanizer.

[0116] On the basis of the first implementation structure, the vulcanization mold in this embodiment further includes an adaptive locking mechanism 14 and an ejection mechanism 144. The adaptive locking mechanism 14 ensures the tight closure of the second upper mold 11b and the second lower mold 12b to prevent leakage during the injection molding process. The ejection mechanism 144 is used to eject the vulcanized rubber corrugated finished product.

[0117] Combination Fig.17 The ejection mechanism 144 includes a fixed seat 1441, an ejection plate 1442 and a driving assembly. The ejection plate 1442 is located below the fixed seat 1441 and is provided with an ejector pin 1444 corresponding to the position of the first through hole 123 at the top of the second lower mold 12b. The driving assembly drives the ejection plate 1442 to move relative to the fixed seat 1441, so that the ejector pin 1444 ejects the finished product from the mold.

[0118] The vulcanization mold structure in this embodiment is described in detail as follows:

[0119] The second die set 1b in this embodiment includes a second upper die 11b, a second lower die 12b, an adaptive locking mechanism 14 and an ejection mechanism 144; a first groove 111 is provided at the bottom of the second upper die 11b; and the second lower die 12b is relatively provided at the bottom of the second upper die 11b. The second upper die 11b and the second lower die 12b are relatively closed by the rubber vulcanizer 2. A second groove 121 is provided at the top of the second lower die 12b, and a mold cavity 13b is formed between the second upper die 11b and the second lower die 12b. The mold cavity 13b is used for hot injection molding to form a rubber corrugated finished product, and the second lower die 12b is provided with a locking groove 122.

[0120] The adaptive locking mechanism 14 includes a plug-in connector 141 and an elastic lock 143; the plug-in connector 141 is arranged at the bottom of the second upper mold 11b; the elastic lock 143 is arranged on the second lower mold 12b, and the elastic lock 143 is engaged with the plug-in connector 141, and the second upper mold 11b and the second lower mold 12b are closed. The ejection mechanism 144 is connected to the second lower mold 12b, and the ejection mechanism 144 is used to eject the finished rubber corrugated product.

[0121] The circular rubber corrugated connecting plate vulcanization production process of the present invention is mainly composed of a second upper mold 11b, a second lower mold 12b, an adaptive locking mechanism 14 and an ejection mechanism 144. The bottom end of the second upper mold 11b is provided with a first groove 111, the shape of which matches the external contour of the rubber corrugated protective cover, and is used to form the external structure of the product during the injection molding process. The second lower mold 12b is relatively arranged at the bottom end of the second upper mold 11b, and the top end thereof is provided with a second groove 121, the shape of which matches the internal contour of the rubber corrugated protective cover. The mold cavity 13b formed between the second upper mold 11b and the second lower mold 12b is the area filled with rubber material during injection molding. In addition, the second lower mold 12b is also provided with a locking groove 122, which is used to cooperate with the elastic lock buckle 143 of the adaptive locking mechanism 14 to achieve tight closure of the mold.

[0122] The adaptive locking mechanism 14 in this embodiment is described in detail as follows:

[0123] Combination Fig.17 and Fig.18 The adaptive locking mechanism 14 includes a plug-in connector 141 and an elastic lock buckle 143; the plug-in connector 141 is arranged at the bottom end of the second upper mold 11b; the elastic lock buckle 143 is arranged on the second lower mold 12b, the elastic lock buckle 143 is engaged with the plug-in connector 141, and the second upper mold 11b and the second lower mold 12b are closed.

[0124] The connector 141 in this embodiment includes a first guide column 1411, which is arranged at the bottom end of the second lower mold 12b. A first guide surface 1412 is arranged on one side of the first guide column 1411. The cross-sectional width of the first guide column 1411 gradually decreases downward. The first guide surface 1412 is used to abut the buckle plate 1431 to ensure the fit between the connector 141 and the buckle plate 1431.

[0125] The elastic lock 143 includes a pinch plate 1431 and a second elastic member 1432. The pinch plate 1431 is disposed in the second lower mold 12b and is movably connected to the plug connector 141. The second elastic member 1432 connects the pinch plate 1431 and the second lower mold 12b, and the second elastic member 1432 pushes the pinch plate 1431 to squeeze the plug connector 141. The second elastic member 1432 connects the pinch plate 1431 and the second lower mold 12b, and pushes the pinch plate 1431 to squeeze the plug connector 141, thereby realizing adaptive locking.

[0126] When the connector 141 is inserted into the locking groove 122, the buckle plate 1431 is squeezed by the first guide column 1411 and bends inward. When the first guide column 1411 is fully inserted, the buckle plate 1431 is reset under the action of the second elastic member 1432, and the buckle plate 1431 is engaged with the first guide column 1411 to achieve tight closure of the mold.

[0127] In this embodiment, the movement trajectory of the pinch plate 1431 includes a first initial position and a first fixed position. When the pinch plate 1431 is in the first initial position, the pinch plate 1431 abuts against the ejection plate 1442, and the pinch plate 1431 limits the position of the ejection plate 1442. Fig.18 When the gusset plate 1431 is in the first fixed position, the gusset plate 1431 is separated from the ejection plate 1442, and the gusset plate 1431 abuts against the connector 141 to achieve locking, such as Fig.19 shown.

[0128] In this embodiment, the elastic lock 143 also includes a positioning column 1433 and a mounting plate 1434. The mounting plate 1434 is connected to the second lower mold 12b. One end of the second elastic member 1432 is connected to the buckle plate 1431, and the other end is abutted against the mounting plate 1434. The positioning column 1433 is arranged on one side of the mounting plate 1434, and the second elastic member 1432 is sleeved on the outside of the positioning column 1433, thereby improving the stability of the elastic lock 1433 during use.

[0129] Furthermore, the adaptive locking mechanism 14 also includes a positioning block 142 and a positioning groove 124. The positioning block 142 is arranged at the top of the connector 141, and the bottom of the positioning block 142 is connected to the bottom of the second upper mold 11b; the positioning groove 124 is arranged at the top of the second lower mold 12b, and the positioning block 142 is engaged with the positioning groove 124, further enhancing the closing stability and precision of the mold. When the mold is closed, the positioning block 142 is engaged with the positioning groove 124, further enhancing the closing stability and precision of the mold.

[0130] The ejection mechanism 144 in this embodiment is described as follows:

[0131] Combination Fig.15 , Fig.17 and Fig. 20In this embodiment, a first through hole 123 is provided at the top of the second lower mold 12b; the ejection mechanism 144 includes a fixed seat 1441, an ejection plate 1442 and a driving assembly; the fixed seat 1441 is arranged in the second lower mold 12b; the ejection plate 1442 is located below the fixed seat 1441, and the ejection plate 1442 is provided with an ejector pin 1444, which corresponds to the position of the first through hole 123 and is used to lift the product; the driving assembly is connected to the ejection plate 1442 and the fixed seat 1441, and the driving assembly drives the ejection plate 1442 to move relative to the fixed seat 1441.

[0132] Further, the driving assembly includes a first elastic member 1443, the first elastic member 1443 is connected to the fixing seat 1441 and the ejection plate 1442, and the first elastic member 1443 pushes the ejection plate 1442 to move upward. The driving assembly in this embodiment can also be a driving structure of a hydraulic telescopic rod or an electric telescopic rod.

[0133] In this embodiment, a first guide hole 14421 is provided on the ejector plate 1442, and the first guide hole 14421 is located on the side of the ejector plate 1442 close to the buckle plate 1431; the first guide column 1411 is plugged into the first guide hole 14421 to further improve the stability and precision of the mold.

[0134] Combination Fig.17 and Fig. 20 In this embodiment, the connector 141 also includes a limit block 1413, the bottom end of the limit block 1413 is connected to the first guide column 1411, and the top end of the limit block 1413 is connected to the second upper mold 11b, especially the top end of the limit block 1413 is connected to the positioning block 142, and the limit block 1413 abuts against the ejection plate 1442, so that the limit block 1413 limits the position of the ejection plate 1442 to prevent it from shifting during movement.

[0135] Furthermore, in this embodiment, a fixing surface 14422 is provided on the top of the ejection plate 1442, and the fixing surface 14422 is located at one end of the ejection plate 1442 close to the elastic lock buckle 143, and the thickness of the ejection plate 1442 close to the elastic lock buckle 143 gradually decreases. A limiting surface 1414 is provided on one side of the bottom end of the limiting block 1413, and when the limiting block 1413 abuts against the ejection plate 1442, the fixing surface 14422 and the limiting surface 1414 fit together, thereby improving the contact surface at the connection between the limiting block 1413 and the ejection plate 1442, and the structure is more stable.

[0136] Combination Fig.16 and Fig.17The side wall of the second lower mold 12b is provided with a second guide hole 125, which is vertically arranged; the driving assembly further includes a reset rod 145, one end of which is connected to the ejection plate 1442, and the other end of which passes through the second guide hole 125 and extends. The reset rod 145 slides up and down along the second guide hole 125, thereby guiding the movement of the ejection plate 1442 and ensuring the stability of the ejection plate 1442 during the movement.

[0137] The first elastic member 1443 connects the fixing seat 1441 and the ejection plate 1442, pushing the ejection plate 1442 to move upward, thereby lifting the rubber corrugated product. One end of the reset rod 145 is connected to the ejection plate 1442, and the other end extends through the vertical second guide hole 125 provided on the side wall of the second lower mold 12b, for guiding the movement of the ejection plate 1442 and resetting the ejection plate 1442 when the mold is not in use.

[0138] In this embodiment, the movement trajectory of the ejector plate 1442 includes a second initial position, a preload position, and a second fixed position arranged in sequence from top to bottom. When the ejector plate 1442 is at the second initial position, the ejector pin 1444 extends out of the top of the second lower mold 12b, and the ejector pin 1444 lifts up the rubber corrugated finished product, such as Fig. 20 As shown; when the ejector plate 1442 is located in the preload position, the buckle plate 1431 is located in the first fixed position, the positioning block 142 abuts against the ejector plate 1442, the positioning block 142 defines the position of the ejector plate 1442, and the ejector pin 1444 is located in the second lower mold 12b, as shown Fig.19 When the ejector plate 1442 is located in the second fixed position, the gusset plate 1431 is located in the first initial position, the gusset plate 1431 abuts against the ejector plate 1442, and the ejector pin 1444 is located in the second lower mold 12b, as shown in FIG. Fig.18 shown.

[0139] like Fig.17 As shown, in this embodiment, the adaptive locking mechanism 14 also includes a second guide column 146, which is vertically arranged in the second lower mold 12b. The ejector plate 1442 slides up and down along the second guide column 146, thereby improving the stability of the ejector plate 1442 during the up and down movement.

[0140] Combination Fig.15 and Fig.16 In this embodiment, the second lower mold 12b is further provided with anti-skid grooves 126 at the top, and the anti-skid grooves 126 are located on both sides of the second groove 121; the second upper mold 11b is provided with anti-slip blocks 112 at the bottom, and the anti-slip blocks 112 are engaged with the anti-slip grooves 126, which improves the stability of the second upper mold 11b and the second lower mold 12b. The bottom end of the anti-slip blocks 112 is used to close the top of the second groove 121, so that the second upper mold 11b and the second lower mold 12b are sealed to form a mold cavity 13b.

[0141] In this embodiment, sealing strips 15 are further provided on both sides of the top of the second lower mold 12b. The sealing strips 15 are correspondingly arranged below the anti-sliding block 112. When the second upper mold 11b and the second lower mold 12b are closed, the sealing strips 15 improve the sealing performance of the structure during use.

[0142] The working principle of the third implementation structure of the vulcanization mold of the present invention is as follows:

[0143] 1. Mold preparation and closing.

[0144] Align the second upper mold 11b with the second lower mold 12b, and ensure that the first guide column 1411 of the plug-in component 141 is aligned with the locking groove 122 of the second lower mold 12b. Apply external force to press the second upper mold 11b downward, so that the first guide column 1411 is inserted into the locking groove 122. The first guide column 1411 of the plug-in component 141 cooperates with the locking groove 122 of the second lower mold 12b, and the mold is tightly closed through the interaction of the pinch plate 1431 and the second elastic member 1432.

[0145] During the insertion of the first guide post 1411 , the pinch plate 1431 is squeezed by the first guide surface 1412 of the first guide post 1411 and bends inward.

[0146] When the first guide post 1411 is completely inserted into the locking groove 122 , the buckle plate 1431 is engaged with the first guide post 1411 under the action of the second elastic member 1432 to achieve adaptive locking.

[0147] At the same time, the positioning block 142 is engaged with the positioning groove 124 to further enhance the closing stability and accuracy of the mold.

[0148] The first elastic member 1443 pushes the ejection plate 1442 to move upward. When the ejection plate 1442 moves from the second initial position to the preloading position, the positioning block 142 abuts against the ejection plate 1442 to limit the further rise of the ejection plate 1442. At this time, the ejector pin 1444 is still located in the second lower mold 12b, but is in a preparatory state for ejecting the finished product.

[0149] 2. Injection molding.

[0150] The stacked semi-finished products are placed in the mold cavity 13b to fill the gap between the second upper mold 11b and the second lower mold 12b. The second lower mold 12b is connected to the lower hot plate in the rubber vulcanizer, and the first upper mold is connected to the upper hot plate in the rubber vulcanizer. Under high temperature and high pressure conditions, the semi-finished products are fused to form a corrugated cover structure.

[0151] Wait for the rubber material to cool and solidify to form a rubber corrugated finished product.

[0152] 3. Mould opening and finished product ejection.

[0153] External force is applied to lift the second upper mold 11 b upward, so that the plug-in component 141 is separated from the elastic lock buckle 143, and the mold is opened.

[0154] The first elastic member 1443 pushes the ejector plate 1442 to move upward, and the ejector plate 1442 moves from the pre-loaded position to the second fixed position, and the ejector pin 1444 extends out of the top of the second lower mold 12b to lift up the rubber corrugated product.

[0155] 4. Reset the mold.

[0156] After the mold is opened, the reset rod 145 guides the ejection plate 1442 to descend and reset, the adaptive locking mechanism 14 releases the locking force, and the ejection mechanism 144 ejects the finished product. The pinch plate 1431 is reset to the initial position under the action of the second elastic member 1432, waiting for the next mold closing. The positioning block 142 and the positioning groove 124 are also reset to the initial state, ready for the next mold closing.

[0157] This completes the working process of the vulcanization mold in the vulcanization production process of a circular rubber corrugated connection flat plate in the preferred embodiment.

[0158] The present invention relates to the improved application of the hot plate vulcanization process in the injection molding machine, especially the technical innovation in the vulcanization and splicing of strip products. The basic structure of the rubber vulcanizer, the upper hot plate and the lower hot plate and the coordination control between them follow the existing mature control technology, so they will not be described in detail here.

[0159] When vulcanization treatment is required for both ends of a single strip product, the system can independently control the upper hot plate or the lower hot plate to perform vulcanization connection operations on the connection head position, ensuring the uniformity of the vulcanization process and the stability of the product quality.

[0160] When faced with the special need to splice two strip-shaped products, the advantages of the present invention are particularly significant. Specifically, the first strip-shaped product includes a first connector and a second connector, and the second strip-shaped product includes a third connector and a fourth connector. The present invention adopts a dual-module vulcanization technology: the first module is responsible for vulcanizing the first connector of the first strip-shaped product with the third connector of the second strip-shaped product; at the same time, the second module is responsible for vulcanizing the second connector of the first strip-shaped product with the fourth connector of the second strip-shaped product. This parallel processing method not only greatly improves production efficiency, but also ensures the strength and sealing of the splicing, meets the production requirements of high-precision products, and has strong structural applicability.

[0161] In summary, although the present invention has been disclosed as above in terms of preferred embodiments, the above preferred embodiments are not intended to limit the present invention. A person skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the scope defined in the claims.

Claims

1. A vulcanization production process for circular rubber corrugated connection plates, characterized in that: include: S1: preparing a strip product, wherein the strip product comprises a first connector and a second connector, The first connector includes a first cooked rubber section and a first semi-cooked rubber section arranged in sequence; The second connector includes a second cooked rubber section and a second semi-cooked rubber section arranged in sequence; S2: trimming the first half-cooked rubber section and the second half-cooked rubber section; The thickness of the first semi-cooked rubber segment gradually decreases at one end away from the first cooked rubber segment; The thickness of the second semi-cooked rubber segment gradually decreases at one end away from the second cooked rubber segment; S3: aligning the first half-cooked rubber segment and the second half-cooked rubber segment after the reduction; S4: wrapping the first semi-cooked rubber segment and the second semi-cooked rubber segment with the raw rubber strip to form a semi-finished product; S5: placing the stacked semi-finished products in a vulcanization mold; S6: Under high temperature and high pressure conditions, the superimposed semi-finished products are fused to form a corrugated cover structure; S7: Cooling the mold to solidify the corrugated cover structure, thereby obtaining an integrally formed circular rubber corrugated connecting plate.

2. The vulcanization production process of circular rubber corrugated connecting plate according to claim 1 is characterized in that: The strip-shaped product comprises a rubber layer and a cloth strip embedded in the rubber layer.

3. The vulcanization production process of the circular rubber corrugated connection plate according to claim 2 is characterized in that: The first connector further comprises a first raw fabric segment, the first raw fabric segment is connected to the first semi-cooked rubber segment away from the first cooked rubber segment, The second connector further comprises a second raw fabric segment, the second raw fabric segment is connected to the second semi-cooked rubber segment away from the second cooked rubber segment, The step S1 further includes: removing the first raw fabric segment and the second raw fabric segment.

4. The vulcanization production process of the circular rubber corrugated connection plate according to claim 3 is characterized in that: The ratio of the thickness of the first semi-cooked rubber segment at one end away from the first cooked rubber segment to the thickness of the first cooked rubber segment is between 1:4 and 1:2, and the length of the first semi-cooked rubber segment is between 25 mm and 35 mm.

5. The vulcanization production process of circular rubber corrugated connection plate according to claim 4 is characterized in that: The length ratio of the first raw fabric segment to the first semi-cooked rubber segment is between 2:1 and 5:

3.

6. The vulcanization production process of circular rubber corrugated connection plate according to claim 1 is characterized in that: The vulcanization mold comprises: A first module, wherein the first module is provided with a first channel, and the first channel is used for passing the strip-shaped product; and A second mold is arranged above the first mold, the second mold is provided with a second mold cavity, and the second mold cavity is used for injection molding the semi-finished product; wherein the second mold comprises: A second upper die, wherein a first groove is provided at a bottom end of the second upper die; The second lower mold is relatively arranged at the bottom end of the second upper mold, and a second groove is arranged at the top end of the second lower mold. A mold cavity is formed between the second upper mold and the second lower mold, and the mold cavity is used for hot injection molding to form a rubber corrugated product. The second lower mold is provided with a locking groove.

7. The vulcanization production process of the circular rubber corrugated connection plate according to claim 6 is characterized in that: The vulcanization mold also includes: An adaptive locking mechanism comprising: A plug-in connector, disposed at the bottom end of the second upper mold; and An elastic lock buckle is arranged on the second lower mold, the elastic lock buckle is engaged with the plug-in component, and the second upper mold and the second lower mold are closed; and An ejection mechanism is connected to the second lower mold, and the ejection mechanism is used to eject the rubber corrugated finished product.

8. The vulcanization production process of circular rubber corrugated connection plate according to claim 7 is characterized in that: The top end of the second lower mold is provided with a first through hole; the ejection mechanism comprises: A fixing seat, arranged in the second lower mold; an ejector plate, located below the fixing seat, the ejector plate being provided with an ejector pin, the ejector pin corresponding to the position of the first through hole, and the ejector pin being used to eject the product; and A driving assembly is connected to the ejection plate and the fixing seat, and the driving assembly drives the ejection plate to move relative to the fixing seat.

9. The vulcanization production process of circular rubber corrugated connection plate according to claim 7, characterized in that: The elastic lock comprises: A gusset plate is disposed in the second lower mold, and the gusset plate is movably connected to the connector; and The second elastic member is connected to the buckle plate and the second lower mold, and the second elastic member pushes the buckle plate to squeeze the connector.

10. The vulcanization production process of the circular rubber corrugated connection plate according to claim 9, characterized in that: The ejector plate is provided with a first guide hole, and the first guide hole is located on a side of the ejector plate close to the gusset plate; The plug-in connector includes a first guide column, which is arranged at the bottom end of the second lower mold and is inserted into the first guide hole. A first guide surface is disposed on one side of the first guide column, and the cross-sectional width of the first guide column gradually decreases downward, and the first guide surface is used to abut against the buckle plate.

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