Forming die for rubber strip and circular ring type rubber

Abstract

The utility model relates to a forming die for a rubber strip and circular ring type rubber. The forming die comprises a die body, a first baffle, a second baffle and a fastener. A feeding groove and a discharging groove are formed in the outer side, exposed out of a heating plate of the vulcanizing machine, of the mold, and the vulcanizing channel is communicated between the feeding groove and the discharging groove. The first baffle seals the feeding port, the second baffle seals the discharging port, the fasteners enable the first baffle and the second baffle to be tightly attached to the side walls of the corresponding open sections, it can be ensured that rubber materials are fully filled in the vulcanization channel, the rubber materials cannot flow out in the vulcanization process, and the vulcanization quality is ensured. And the fasteners are convenient for mounting and dismounting the corresponding first baffle plate or the second baffle plate in the second mold and subsequent vulcanization, and the mounting and dismounting efficiency is high. In the last die, whether the first baffle is installed or not can be selected to produce the rubber strip or the circular ring type rubber ring. The mold is simple in structure, convenient to mount and dismount and higher in compatibility, the production efficiency is remarkably improved, and the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of rubber preparation equipment, and particularly relates to a forming die for rubber strips and ring-shaped rubber. Background Art

[0002] Vulcanized rubber refers to rubber that has been vulcanized and has characteristics such as non-stickiness and not being easily broken. Most rubber products are made of this kind of rubber, also called cured rubber, commonly known as rubber or rubber sheet. When vulcanizing rubber, the rubber compound needs to be placed in a vulcanization die and vulcanized by a rubber vulcanizer. The shape of the rubber finished product depends on the die.

[0003] To meet the vulcanization of longer rubber compounds, when the existing die for a vulcanizer is in use, it is necessary to heat and form several rubber compounds continuously into an integrated mechanism during vulcanization. This die can only produce long-strip or ring-shaped rubber selectively, with poor compatibility and high cost, which affects the processing efficiency of rubber.

[0004] Therefore, it is necessary to provide a forming die for rubber strips and ring-shaped rubber to solve the above problems. Content of the Utility Model

[0005] The utility model relates to a forming die for rubber strips and ring-shaped rubber. The forming die for rubber strips and ring-shaped rubber can ensure sufficient filling of the rubber compound in the vulcanization channel and prevent the rubber compound from flowing out during vulcanization by using a first baffle and a second baffle to block the corresponding inlets and outlets, thus ensuring the quality of vulcanization. Fasteners are arranged between the first baffle and the second baffle and are detachably connected, which is convenient for installing and disassembling the corresponding first baffle or second baffle during the second mold and subsequent vulcanization, with high installation and disassembly efficiency, thereby improving the processing efficiency of rubber. Moreover, in the last mold, it can be selected whether to install the first baffle to produce rubber strips or ring-shaped rubber gaskets. This die can produce both rubber strips and ring-shaped rubber gaskets, with a simple structure, convenient installation and disassembly, higher compatibility, significantly improved production efficiency, and reduced cost, solving the problems of poor compatibility and low production efficiency in the prior art where the die can only produce long-strip or ring-shaped rubber selectively.

[0006] To solve the above problems, the content of the utility model is: a forming die for rubber strips and ring-shaped rubber, which comprises:

[0007] A mold, in which a feeding groove, a discharging groove and a vulcanization channel are sequentially arranged. The feeding groove and the discharging groove are arranged outside the heating plate of the vulcanizer exposed by the mold, and the vulcanization channel is located at the corresponding position of the heating plate and communicates between the feeding groove and the discharging groove; an open section is arranged between the other ends of the feeding groove and the discharging groove. One end of the feeding groove communicating with the open section is the feeding port, and one end of the discharging groove communicating with the open section is the discharging port;

[0008] A first baffle, which is used to seal the feeding port during vulcanization;

[0009] A second baffle, which is used to seal the discharging port during vulcanization; and,

[0010] A fastener is arranged in the open section. One end of the fastener abuts against the first baffle, and the other end of the fastener abuts against the second baffle, so that the first baffle and the second baffle are closely attached to the side walls of the corresponding open section;

[0011] Wherein, when producing a long strip of rubber strip, in the first mold, the first baffle seals the feeding port, and the second baffle seals the discharging port; in the second mold and the last mold, the B-end raw head of the feeding groove of the previous mold is located in the vulcanization channel of the mold, and the first mature product together with the B-end raw head section in the previous mold is filled into the discharging groove of the next mold. The A-end raw head of the discharging groove of the previous mold and the second mature product connected to the A-end raw head in the vulcanization channel are located outside the mold. The first baffle seals the feeding port, and the fastener abuts between the first baffle and the side wall of the open section where the discharging port is arranged; or,

[0012] When producing a rubber rubber ring, the assembly of the mold in the first mold and the penultimate mold is the same as that in the production of the long strip of rubber strip above; in the last mold, the B-end raw head after vulcanization of the penultimate mold is located in the vulcanization channel of the last mold, and the first mature product together with the B-end raw head section in the penultimate mold is filled into the discharging groove. The A-end raw head of the discharging groove of the penultimate mold and the second mature product connected to the A-end raw head in the vulcanization channel are located outside the mold. The A-end raw head after vulcanization of the first mold is located in the vulcanization channel, and a part of the second mature product connected to the A-end raw head of the first mold is located in the feeding groove, and the vulcanization channel is filled with raw rubber.

[0013] Further, the first baffle and the second baffle are arranged with the same structure. The first baffle is arranged in an L-shaped structure. One end of the first baffle is screwed to the outside of the mold, and the other end of the first baffle is bent and closely attached to the side wall of the open section and is hermetically connected to the feeding port, saving costs, fitting more closely, and being more convenient for installation and disassembly.

[0014] Furthermore, the thickness of the first baffle is smaller than the thickness of the mold, thereby saving costs.

[0015] Furthermore, the vulcanization channel is configured as a C-shaped structure, and the longitudinal section of the vulcanization channel is configured as a circular structure, which saves space, facilitates the removal of the vulcanized rubber, and reduces friction resistance.

[0016] Furthermore, the open section is configured as a square structure, and the distance that the inner wall of the open section penetrates into the vulcanization channel is less than the radius of the vulcanization channel, which facilitates sealing of the feed port and the discharge port and provides more operating space for removing the vulcanized rubber.

[0017] Furthermore, the fastener is configured as a bolt structure, one end of the fastener is provided with a thread, the first baffle is provided with a threaded hole, one end of the fastener is threadedly connected to the threaded hole, and installation and disassembly are more convenient. The end surface of the other end of the fastener abuts against the side of the second baffle away from the discharge port.

[0018] Furthermore, the fastener and the vulcanization channel are staggered, which does not affect the vulcanization process after the second mold and improves work efficiency.

[0019] Furthermore, the other end of the fastener is threadedly connected to a nut, and the end of the nut abuts against the side of the second baffle, which is convenient for adjusting the abutment length of the fastener and improving compatibility, and can also increase the contact area with the second baffle and improve the sealing effect.

[0020] Furthermore, the mold includes an upper mold and a lower mold, both of which are set to a square structure, and the upper mold is screwed to the lower mold to facilitate installation and removal of the mold. An open first groove is set on one side of the upper mold, and an open second groove is set on one side of the lower mold. The first groove and the second groove enclose the vulcanization channel, which is convenient for cleaning the vulcanization channel and improving the quality of the rubber.

[0021] Furthermore, a plurality of mold openings are spaced apart around the side of the upper mold away from the lower mold, and the mold openings are used to remove the upper mold, which facilitates mold disassembly and mold closing, and is more convenient to operate.

[0022] Due to the adoption of the above-mentioned forming die for rubber strips and ring-shaped rubber, compared with the prior art, the beneficial effects of the present utility model are as follows: The present utility model relates to a forming die for rubber strips and ring-shaped rubber. The forming die for rubber strips and ring-shaped rubber includes a die, a first baffle, a second baffle, and a fastener. An inlet groove, an outlet groove, and a vulcanization channel are sequentially arranged in the die. The inlet groove and the outlet groove are arranged outside the heating plate of the vulcanizer exposed to the outside of the die, and the vulcanization channel is located at the corresponding position of the heating plate and communicates between the inlet groove and the outlet groove. An open section is arranged between the other ends of the inlet groove and the outlet groove. One end of the inlet groove communicating with the open section is the inlet port, and one end of the outlet groove communicating with the open section is the outlet port. The first baffle is used to seal the inlet port during vulcanization. The second baffle is used to seal the outlet port during vulcanization. The fastener is arranged in the open section. One end of the fastener abuts against the first baffle, and the other end of the fastener abuts against the second baffle so that the first baffle and the second baffle are closely attached to the side walls of the corresponding open section. Among them, when a long rubber strip is formed, in the first mold, the first baffle seals the inlet port, and the second baffle seals the outlet port. In the second mold and the last mold, the B-end head of the inlet groove of the previous mold is located in the vulcanization channel of the die. The first mature product together with the B-end head section in the previous mold is filled into the outlet groove of the next mold. The A-end head of the outlet groove of the previous mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the die. The first baffle seals the inlet port, and the fastener abuts between the first baffle and the side wall of the open section provided with the outlet port. The first mature product and the second mature product are the rubber materials vulcanized in the vulcanization channel. Or, when a rubber ring is formed, the assembly of the die in the first mold and the penultimate mold is the same as that in the formation of the long rubber strip mentioned above. In the last mold, the B-end head vulcanized in the penultimate mold is located in the vulcanization channel of the last mold. The first mature product together with the B-end head section in the penultimate mold is filled into the outlet groove. The A-end head of the outlet groove of the penultimate mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the die. The A-end head vulcanized in the first mold is located at the corresponding position at one end of the vulcanization channel connecting the inlet groove, and a part of the second mature product connected to the A-end head vulcanized in the first mold is located in the inlet groove. The vulcanization channel is used to fill the raw rubber completely. The forming die for rubber strips and ring-shaped rubber can ensure sufficient filling of the rubber material in the vulcanization channel by blocking the corresponding inlet and outlet with the first baffle and the second baffle, and the rubber material will not flow out during the vulcanization process, ensuring the quality of vulcanization. The fastener is arranged between the first baffle and the second baffle and is detachably connected, which is convenient for installing and disassembling the corresponding first baffle or second baffle during the vulcanization of the second mold and subsequent molds, and the installation and disassembly efficiency is high, thereby improving the processing efficiency of rubber. Moreover, in the last mold, it is possible to choose whether to install the first baffle to produce rubber strips or ring-shaped rubber rings.This mold can produce both rubber strips and ring-shaped rubber gaskets. It has a simple structure, is convenient for installation and disassembly, has higher compatibility, significantly improves production efficiency, reduces costs, and solves the problem in the prior art that molds can only produce long-strip or ring-shaped rubber selectively, resulting in poor compatibility and low production efficiency. Brief Description of the Drawings

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following briefly introduces the drawings required to be used in the embodiments. The drawings in the following description are only the corresponding drawings of some embodiments of the present invention.

[0024] Figure 1 It is a schematic structural diagram of an embodiment of the first mold of the molding mold for rubber strips and ring-shaped rubber of the present invention.

[0025] Figure 2 It is Figure 1 The schematic cross-sectional structure diagram of A-A in

[0026] Figure 3 It is a schematic structural diagram of an embodiment of the second mold to the last mold of the molding mold for rubber strips and ring-shaped rubber of the present invention.

[0027] Figure 4 It is Figure 3 The schematic cross-sectional structure diagram of B-B in

[0028] Figure 5 It is a schematic structural diagram of an embodiment of the last mold for making rubber gaskets of the molding mold for rubber strips and ring-shaped rubber of the present invention.

[0029] Figure 6 It is Figure 5 The schematic cross-sectional structure diagram of C-C in

[0030] In the figure: 1. Molding mold for rubber strips and ring-shaped rubber; 21. Upper mold; 22. Lower mold; 23. Feeding groove; 24. Discharging groove; 25. Vulcanization channel; 26. Open section; 27. Mold opening; 3. First baffle; 4. Second baffle; 5. Fastener; 61. B-end raw head; 62. A-end raw head; 63. First mature product; 64. Second mature product. Detailed Embodiments

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0032] The directional terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", "top" and "bottom", etc., are only with reference to the orientation of the attached drawings. The directional terms used are for explaining and understanding the present utility model, rather than for limiting the present utility model.

[0033] In the figures, units with similar structures are denoted by the same reference numerals.

[0034] Please refer to Figure 1 、 Figure 2 In this embodiment, the forming die 1 for the rubber strip and the annular rubber includes a die, a first baffle 3, a second baffle 4 and a fastener 5. An inlet groove 23, an outlet groove 24 and a vulcanization channel 25 are sequentially arranged in the die. The inlet groove 23 and the outlet groove 24 are arranged outside the heating plate of the vulcanizer exposed outside the die, and the vulcanization channel 25 is located at the corresponding position of the heating plate, and the vulcanization channel 25 communicates between the inlet groove 23 and the outlet groove 24. An open section 26 is arranged between the other ends of the inlet groove 23 and the outlet groove 24. The end of the inlet groove 23 communicating with the open section 26 is the inlet port, and the end of the outlet groove 24 communicating with the open section 26 is the outlet port. The first baffle 3 is used to seal the inlet port during vulcanization. The second baffle 4 is used to seal the outlet port during vulcanization. The fastener 5 is arranged in the open section 26. One end of the fastener 5 abuts against the first baffle 3, and the other end of the fastener 5 abuts against the second baffle 4, so that the first baffle 3 and the second baffle 4 are closely attached to the side walls of the corresponding open section 26.

[0035] Wherein, when forming a long rubber strip, in the first mold, the first baffle 3 seals the inlet port, and the second baffle 4 seals the outlet port. In the second mold and the last mold, the B-end head 61 of the inlet groove 23 of the previous mold is located in the vulcanization channel 25 of the die. Specifically, it can be placed at the corresponding position of the end of the vulcanization channel 25 connected to the outlet groove 24. The first mature product 63 together with the B-end head 61 in the previous mold is filled into the outlet groove 24 of the next mold. The A-end head 62 of the outlet groove 24 of the previous mold and the second mature product 64 connected to the A-end head 62 in the vulcanization channel 25 are located outside the die. The first baffle 3 seals the inlet port, and the fastener 5 abuts between the first baffle 3 and the side wall of the open section 26 provided with the outlet port. The first mature product 63 and the second mature product 64 are the rubber materials vulcanized in the vulcanization channel 25.

[0036] Or,

[0037] When producing the rubber rubber ring, the assembly of the mold in the first mold and the penultimate mold is the same as that in the production of the long strip rubber strip above. In the last mold, the B-end head 61 after vulcanization of the penultimate mold is located in the vulcanization channel 25 of the last mold. Specifically, it can be placed at the position corresponding to the end of the vulcanization channel 25 connected to the discharge chute 24. The first mature product 63 together with the B-end head 61 section in the penultimate mold is filled into the discharge chute 24. The A-end head 62 of the discharge chute 24 of the penultimate mold and the second mature product 64 connected to the A-end head 62 in the vulcanization channel 25 are located outside the mold. The A-end head 62 after vulcanization of the first mold is located at the position corresponding to the end of the vulcanization channel 25 connected to the feed chute 23. A part of the second mature product 64 connected to the A-end head 62 after vulcanization of the first mold is located in the feed chute 23. The vulcanization channel 25 is filled with raw rubber.

[0038] Both the feed chute 23 and the discharge chute 24 are exposed at the outer end of the heating plate, which can avoid over-vulcanization during repeated vulcanization of both ends of the rubber material and improve the quality of rubber material vulcanization. The first baffle 3 and the second baffle 4 block the corresponding inlets and outlets, which can ensure sufficient filling of the rubber material in the vulcanization channel 25 and prevent the rubber material from flowing out during vulcanization, ensuring the quality of vulcanization. The fastener 5 is arranged between the first baffle 3 and the second baffle 4 and is detachably connected, which is convenient for installing and disassembling the corresponding first baffle 3 or second baffle 4 during the vulcanization of the second mold and subsequent molds, with high installation and disassembly efficiency, thus improving the processing efficiency of rubber.

[0039] In this embodiment, please refer to Figure 1 、 Figure 2 The mold includes an upper mold 21 and a lower mold 22. Both the upper mold 21 and the lower mold 22 are set as square structures, and the upper mold 21 and the lower mold 22 are connected by screws, which is convenient for installing and disassembling the mold. One side of the upper mold 21 is provided with an open first groove, and one side of the lower mold 22 is provided with an open second groove. The first groove and the second groove enclose a sealed vulcanization channel 25. The upper mold 21 and the lower mold 22 are detachably connected, which is convenient for taking out the vulcanized rubber material and cleaning the vulcanization channel 25, improving the quality of rubber.

[0040] A plurality of mold opening ports 27 are arranged at intervals on the circumferential side of the side of the upper mold 21 facing away from the lower mold 22. The mold opening ports 27 are used to remove the upper mold 21, which is convenient for mold disassembly and assembly, and the operation is more convenient.

[0041] In this embodiment, the first baffle 3 and the second baffle 4 are set with the same structure. The first baffle 3 is set as an L-shaped structure. One end of the first baffle 3 is screwed to the outside of the mold, and the other end of the first baffle 3 is bent and closely attached to the side wall of the open section 26 and is hermetically connected to the feed port, saving costs, having a closer fit, and being more convenient for installation and disassembly.

[0042] Among them, the thickness of the first baffle 3 is less than that of the mold, which saves costs. Specifically, the first baffle 3 and the second baffle 4 are symmetrically arranged along the central axis of the mold. One side of the first baffle 3 is flush with the side of the lower mold 22 facing away from the upper mold 21. The other side of the first baffle 3 covers the vulcanization channel 25 of the upper mold 21, and the fitting width of the other side of the first baffle 3 and the upper mold 21 is less than half of the thickness of the upper mold 21. It can effectively save costs while ensuring good sealing.

[0043] The vulcanization channel 25 is set as a C-shaped structure, and the longitudinal section of the vulcanization channel 25 is set as a circular structure, which saves space and is also convenient for taking out the vulcanized rubber and reduces the frictional resistance. In this way, it can be applied to both ring-shaped rubber and strip-shaped rubber. The discharge groove 24 and the feed groove 23 are also set as arc-shaped structures, and the radii of the three are the same.

[0044] The open section 26 is set as a square structure, and the distance that the inner wall of the open section 26 extends into the vulcanization channel 25 is less than the radius of the vulcanization channel 25, which is convenient for sealing the feed port and the discharge port and also provides more operating space for taking out the vulcanized rubber.

[0045] Specifically, the fastener 5 is set as a bolt structure. One end of the fastener 5 is provided with a thread, and a threaded hole is provided on the first baffle 3. One end of the fastener 5 is threadedly connected to the threaded hole, and the installation and disassembly are more convenient. The end face of the other end of the fastener 5 abuts against the side of the second baffle 4 facing away from the discharge port.

[0046] Among them, the fastener 5 is arranged in a dislocation manner with the vulcanization channel 25, which does not affect the vulcanization processing after the second mold and improves the working efficiency.

[0047] A nut is threadedly connected to the other end of the fastener 5, and the end of the nut abuts against the side of the second baffle 4, which is convenient for adjusting the abutting length of the fastener 5, improves the compatibility, and can also increase the contact area with the second baffle 4 to improve the sealing effect. Or, the threaded connection length between the fastener 5 and the nut is adjusted to adjust the abutting length of the fastener 5 to adapt to the spacing difference between different first baffles 3 and second baffles 4.

[0048] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 , and the working principle of the first baffle 3 and the second baffle 4 in this embodiment for producing large-size strip-shaped rubber strips will be elaborated in detail below.

[0049] I. Vulcanization of the first mold rubber strip

[0050] Please refer to Figure 1 、 Figure 2, the feeding chute 23, the discharging chute 24, and the vulcanization channel 25 are filled with raw rubber. The first baffle 3, the second baffle 4, and the fastener 5 are assembled into the open section 26 to seal the feeding port and the discharging port, so as to prevent the unvulcanized or under-vulcanized rubber from being extruded from the mold when the upper mold 21 and the lower mold 22 are closed and during vulcanization, which may cause the product to lack rubber or have insufficient density and affect the product quality.

[0051] II. Vulcanization of the second mold rubber strip

[0052] Please refer to Figure 3 , Figure 4 , disassemble the first baffle 3 and the second baffle 4. The rubber product of the first mold moves clockwise in the mold to the specified position, that is, the B-end raw head 61 corresponding to vulcanization in the feeding chute 23 of the first mold moves to the position corresponding to the end of the vulcanization channel 25 of the mold connected to the discharging chute 24. The first mature product 63 together with the B-end raw head 61 section in the first mold is filled into the discharging chute 24. The A-end raw head 62 corresponding to vulcanization in the discharging chute 24 of the first mold and the second mature product 64 connected to the A-end raw head 62 in the vulcanization channel 25 are taken out from the open section 26 and placed outside the mold.

[0053] Then add new rubber material to the vulcanization channel 25 and the feeding chute 23, assemble the first baffle 3, and fix it with the fastener 5 to block the feeding port of the feeding chute 23. The discharging port of the discharging chute 24 of the second mold is filled with the mature product section together with the B-end raw head 61 section of the first mold, so that unvulcanized or under-vulcanized rubber can be prevented from being extruded from the mold during mold closing and vulcanization on both sides.

[0054] III. Vulcanization of the nth mold rubber strip (n is a natural number such as 3, 4, 5... )

[0055] Please refer to Figure 3 , Figure 4 , for the vulcanization operation of the third mold and subsequent molds, disassemble the first baffle 3. The rubber product of the previous mold moves clockwise in the mold to the specified position, that is, the B-end raw head 61 corresponding to vulcanization in the feeding chute 23 of the previous mold moves to the position corresponding to the end of the vulcanization channel 25 of the mold connected to the discharging chute 24. The first mature product 63 together with the B-end raw head 61 section in the previous mold is filled into the discharging chute 24. The A-end raw head 62 corresponding to vulcanization in the discharging chute 24 of the previous mold and the second mature product 64 connected to the A-end raw head 62 in the vulcanization channel 25 are taken out from the open section 26 and placed outside the mold.

[0056] Then add new rubber material to the vulcanization channel 25 and the feeding chute 23, assemble the first baffle 3, and fix it with the fastener 5 to block the feeding port of the feeding chute 23. The discharging port of the discharging chute 24 of the next mold is filled with the mature product section together with the B-end raw head 61 section of the previous mold, so that unvulcanized or under-vulcanized rubber can be prevented from being extruded from the mold during mold closing and vulcanization on both sides.

[0057] until the desired vulcanized length is reached.

[0058] In the above embodiments, it is used to directly and continuously produce a long rubber strip at one time. Of course, there can also be the following method. Multiple semi-finished rubber strips are repeatedly produced using the first mold, and then the semi-finished rubber strips are processed by the second mold according to the actual rubber strip length requirement to complete the production of the rubber strip with the required length. It is flexible and controllable, suitable for interspersed production of rubber strips with different lengths, and can improve production efficiency.

[0059] First, please refer to Figure 1 、 Figure 2 , fill the feeding groove 23, discharging groove 24, and vulcanization channel 25 with raw rubber. Assemble the first baffle 3, second baffle 4, and fastener 5 into the open section 26 to seal the feeding port and discharging port, so as to prevent unvulcanized or under-vulcanized rubber from being extruded from the mold when the upper mold 21 and the lower mold 22 are closed and during vulcanization, which may cause the product to lack rubber or have insufficient density and affect the product quality.

[0060] Second, repeat the first step to produce multiple semi-finished rubber strips.

[0061] Third, vulcanize the rubber strip in the second mold

[0062] Please refer to Figure 3 、 Figure 4 , disassemble the first baffle 3 and the second baffle 4. The rubber product in the first mold moves clockwise in the mold to the designated position, that is, the B-end raw head 61 corresponding to vulcanization in the feeding groove 23 of the first mold moves to the position corresponding to one end of the vulcanization channel 25 of the mold connected to the discharging groove 24. The first mature product 63 together with the B-end raw head 61 section in the first mold is filled into the discharging groove 24. The A-end raw head 62 corresponding to vulcanization in the discharging groove 24 of the first mold and the second mature product 64 connected to the A-end raw head 62 in the vulcanization channel 25 are taken out from the open section 26 and placed outside the mold.

[0063] Then add new rubber material to the vulcanization channel 25 and the feeding groove 23, assemble the first baffle 3, and fix it with the fastener 5 to block the feeding port of the feeding groove 23. The discharging port of the discharging groove 24 of the second mold is filled with the mature product section together with the B-end raw head 61 section of the first mold, so that unvulcanized or under-vulcanized rubber can be prevented from being extruded from the mold when the mold is closed and during vulcanization on both sides.

[0064] Fourth, the number of semi-finished rubber strips required for processing can be calculated according to the actual rubber strip length. Then repeat the above third step.

[0065] Among them, if the actual length of the rubber strip is not an integer multiple of the semi-finished rubber strip, the B-end raw head 61 corresponding to vulcanization in the feeding groove 23 of the first mold can be adjusted to the depth of the vulcanization channel 25 of the mold to reduce the vulcanization length of the raw rubber material, so that rubber strips of any length can be vulcanized, with higher compatibility.

[0066] Please refer to Figures 1 to 6 , and the working principles of the first baffle 3 and the second baffle 4 in this embodiment for producing large-size ordinary-section circular-ring rubber gaskets will be elaborated in detail below.

[0067] I. Calculate the number of molds to be vulcanized

[0068] Calculate the number of molds to be vulcanized according to the unfolded size of the circular-ring rubber gasket and the combined unfolded size of the feeding groove 23, vulcanization channel 25, and discharging groove 24 in the mold.

[0069] II. Vulcanize the rubber gasket in the first mold

[0070] Please refer to Figure 1 , Figure 2 , the first baffle 3, the second baffle 4, and the fastener 5 are assembled into the open section 26 to seal the feeding port and discharging port, so as to prevent the feeding groove 23, discharging groove 24, and vulcanization channel 25 from being filled with raw rubber during the mold closing of the upper mold 21 and the lower mold 22 and during vulcanization, and to prevent the unvulcanized or under-vulcanized rubber from being extruded from the mold, resulting in defective products or insufficient density and affecting the quality of the products.

[0071] III. Vulcanize the rubber gasket in the second mold

[0072] Please refer to Figure 3 , Figure 4 , disassemble the first baffle 3 and the second baffle 4. The rubber product of the first mold moves clockwise in the mold to the designated position. The B-end raw head 61 corresponding to vulcanization in the feeding groove 23 of the first mold moves to the position corresponding to the end of the vulcanization channel 25 connected to the discharging groove 24. The first mature product 63 together with the B-end raw head 61 section in the first mold is filled into the discharging groove 24. The A-end raw head 62 corresponding to vulcanization in the discharging groove 24 of the first mold and the second mature product 64 connected to the A-end raw head 62 in the vulcanization channel 25 are taken out from the open section 26 and placed outside the mold;

[0073] Then, add new rubber material to the vulcanization channel 25 and the feeding groove 23, assemble the first baffle 3, and fix it with the fastener 5 to block the feeding port of the feeding groove 23. The discharging port of the discharging groove 24 of the second mold is filled with the mature product section together with the B-end raw head 61 section of the first mold, so that both sides can prevent the unvulcanized or under-vulcanized rubber from being extruded from the mold during mold closing and vulcanization.

[0074] IV. Vulcanize the rubber gaskets in the third mold and the second-to-last mold

[0075] Please refer to Figure 3 and Figure 4 , remove the first baffle 3, and the rubber product of the previous mold moves clockwise in the mold to the specified position, that is, the B-end head 61 corresponding to vulcanization in the feed chute 23 of the previous mold moves to the position corresponding to one end of the vulcanization channel 25 of the mold connected to the discharge chute 24. The first mature product 63 together with the B-end head 61 section in the previous mold is filled into the discharge chute 24. The A-end head 62 corresponding to vulcanization in the discharge chute 24 of the previous mold and the second mature product 64 connected to the A-end head 62 in the vulcanization channel 25 are taken out from the open section 26 and placed outside the mold;

[0076] Then add new rubber material to the vulcanization channel 25 and the feed chute 23, assemble the first baffle 3, and fix it with the fastener 5 to block the feed port of the feed chute 23. The discharge port of the discharge chute 24 of the next mold is filled with the first mature product 63 section together with the B-end head 61 section of the previous mold, and the vulcanization channel 25 is filled with raw rubber.

[0077] V. Vulcanization of the rubber ring in the last mold

[0078] Please refer to Figure 5 and Figure 6 , remove the first baffle 3, and the B-end head 61 after vulcanization in the penultimate mold moves clockwise to the position corresponding to one end of the vulcanization channel 25 of the mold connected to the discharge chute 24; at the same time, the first mature product 63 section together with the B-end head 61 after vulcanization in the penultimate mold fills the position of the discharge chute 24 of the mold;

[0079] The A-end head 62 after vulcanization in the first mold is located at the position corresponding to one end of the vulcanization channel 25 connected to the feed chute 23, and a part of the second mature product 64 connected to the A-end head 62 after vulcanization in the first mold is located in the feed chute 23. At the same time, the second mature product 64 fills the feed port of the mold;

[0080] The vulcanization channel 25 is filled with raw rubber. During vulcanization, the B-end head 61, the A-end head 62 and the raw rubber part in the vulcanization channel 25 are formed into one body for vulcanization operation. At this point, the rubber ring is vulcanized and mature.

[0081] In this embodiment, the utility model relates to a forming mold for rubber strips and ring-shaped rubbers. The forming mold for rubber strips and ring-shaped rubbers includes a mold, a first baffle, a second baffle, and a fastener. An inlet groove, an outlet groove, and a vulcanization channel are sequentially arranged in the mold. The inlet groove and the outlet groove are arranged outside the heating plate of the vulcanizer exposed by the mold, and the vulcanization channel is located at the corresponding position of the heating plate and communicates between the inlet groove and the outlet groove. An open section is arranged between the other ends of the inlet groove and the outlet groove. One end of the inlet groove communicating with the open section is the inlet port, and one end of the outlet groove communicating with the open section is the outlet port. The first baffle is used to seal the inlet port during vulcanization. The second baffle is used to seal the outlet port during vulcanization. The fastener is arranged in the open section, one end of the fastener abuts against the first baffle, and the other end of the fastener abuts against the second baffle, so that the first baffle and the second baffle are closely attached to the side walls of the corresponding open section. Among them, in the first mold, the first baffle seals the inlet port, and the second baffle seals the outlet port. In the second mold and the penultimate mold, the B-end head of the inlet groove of the previous mold is located inside the mold. The first mature product together with the B-end head section in the previous mold is filled into the outlet groove of the next mold. The A-end head of the outlet groove of the previous mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the mold. The first baffle seals the inlet port, and the fastener abuts between the first baffle and the side wall of the open section provided with the outlet port. When a long rubber strip is formed, the B-end head of the inlet groove of the penultimate mold is located in the vulcanization channel of the last mold. The first mature product together with the B-end head section in the penultimate mold is filled into the outlet groove. The A-end head of the outlet groove of the penultimate mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the mold. The first baffle seals the inlet port, and the fastener abuts between the first baffle and the side wall of the open section provided with the outlet port. Or, when a rubber ring is formed, the B-end head after vulcanization of the penultimate mold is located inside the last mold. The first mature product together with the B-end head section in the penultimate mold is filled into the outlet groove. The A-end head of the outlet groove of the penultimate mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the mold. The A-end head after vulcanization of the first mold is located at the corresponding position of one end of the vulcanization channel connecting the inlet groove. A part of the second mature product connected to the A-end head after vulcanization of the first mold is located in the inlet groove, and the vulcanization channel is used to fill raw rubber. The forming mold for rubber strips and ring-shaped rubbers can ensure sufficient filling of the rubber material in the vulcanization channel by blocking the corresponding inlets and outlets with the first baffle and the second baffle, and the rubber material will not flow out during the vulcanization process, ensuring the quality of vulcanization. The fastener is arranged between the first baffle and the second baffle and is detachably connected, which is convenient for installing and disassembling the corresponding first baffle or second baffle during the vulcanization of the second mold and subsequent molds, and the installation and disassembly efficiency is high, thereby improving the processing efficiency of rubber. Moreover, in the last mold, it is possible to choose whether to install the first baffle to produce rubber strips or ring-shaped rubber rings.This mold can produce both rubber strips and ring-shaped rubber gaskets. It has a simple structure, is convenient to install and disassemble, has higher compatibility, significantly improves production efficiency, reduces costs, and solves the problem in the prior art that the mold can only produce long strip-shaped or ring-shaped rubber alternatively, resulting in poor compatibility and low production efficiency.

[0082] In summary, although the present utility model has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present utility model. Those of ordinary skill in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the scope defined by the claims.

Claims

1. A forming mold for a rubber strip and an annular rubber, characterized in that, include: A mold, wherein a feed trough, a discharge trough and a vulcanization channel are sequentially arranged in the mold, the feed trough and the discharge trough are arranged on the outer side of the mold exposed to the heating plate of the vulcanizer, the vulcanization channel is located at a corresponding position of the heating plate, and the vulcanization channel is connected between the feed trough and the discharge trough; an open section is arranged between the other end of the feed trough and the discharge trough, one end of the feed trough connected to the open section is a feed port, and one end of the discharge trough connected to the open section is a discharge port; a first baffle, the first baffle being used to seal the feed port during vulcanization; A second baffle, the second baffle is used to seal the discharge port during vulcanization; and A fastener is disposed in the open section, one end of the fastener abuts against the first baffle, and the other end of the fastener abuts against the second baffle, so that the first baffle and the second baffle are closely attached to the corresponding side wall of the open section; Wherein, when generating a long strip of rubber strip, in the first mold, the first baffle seals the feed port, and the second baffle seals the discharge port; in the second mold and the last mold, the B-end head of the feed trough of the previous mold is located in the vulcanization channel of the mold, the first mature product together with the B-end head section in the previous mold is filled into the discharge trough of the next mold, the A-end head of the discharge trough of the previous mold and the second mature product connected to the A-end head in the vulcanization channel are located outside the mold, the first baffle seals the feed port, and the fastener abuts between the first baffle and the side wall of the open section where the discharge port is provided; or, When generating the rubber rubber ring, the assembly of the molds in the first mold and the penultimate mold is consistent with the above-mentioned generation of the long rubber strip; in the last mold, the B-end raw head after vulcanization in the penultimate mold is located in the vulcanization channel of the last mold, the first mature product together with the B-end raw head section in the penultimate mold is filled into the discharge trough, the A-end raw head of the discharge trough of the penultimate mold and the second mature product connected to the A-end raw head in the vulcanization channel are located outside the mold, the A-end raw head after vulcanization in the first mold is located in the vulcanization channel, and the part of the second mature product connected to the A-end raw head of the first mold is located in the feed trough, and the vulcanization channel is used to be filled with raw rubber.

2. The forming die for the rubber strip and the ring-shaped rubber according to claim 1, characterized in that, The first baffle plate has the same structure as the second baffle plate. The first baffle plate is set as an L-shaped structure. One end of the first baffle plate is screwed to the outer side of the mold, and the other end of the first baffle plate is bent and tightly attached to the side wall of the open section and sealed to the feed port.

3. The forming die for the rubber strip and the ring-shaped rubber according to claim 2, characterized in that The thickness of the first baffle is smaller than the thickness of the mold.

4. The forming die for the rubber strip and the ring-shaped rubber according to claim 1, characterized in that, The vulcanization channel is configured as a C-shaped structure, and the longitudinal section of the vulcanization channel is configured as a circular structure.

5. The forming die for the rubber strip and the ring-shaped rubber according to claim 4, characterized in that, The open section is configured as a square structure, and the distance that the inner wall of the open section penetrates into the vulcanization channel is less than the radius of the vulcanization channel.

6. The forming die for the rubber strip and the ring-shaped rubber according to claim 1, characterized in that, The fastener is configured as a bolt structure, one end of the fastener is provided with a thread, a threaded hole is provided on the first baffle plate, one end of the fastener is threadedly connected in the threaded hole; the end face of the other end of the fastener abuts against the side of the second baffle plate away from the discharge port.

7. The forming die for the rubber strip and the ring-shaped rubber according to claim 6, characterized in that, The fastener is arranged offset from the vulcanization channel.

8. The forming mold for the rubber strip and the ring-shaped rubber according to claim 6, characterized in that, The other end of the fastener is threadedly connected with a nut, and the end of the nut abuts against the side surface of the second baffle.

9. The forming die for the rubber strip and the ring-shaped rubber according to claim 1, characterized in that, The mold includes an upper mold and a lower mold. Both the upper mold and the lower mold are arranged in a square structure, and the upper mold and the lower mold are connected by screws. An open first groove is provided on one side of the upper mold, and an open second groove is provided on one side of the lower mold. The first groove and the second groove enclose to form the vulcanization channel.

10. The forming die for the rubber strip and the ring-shaped rubber according to claim 9, characterized in that, A plurality of mold opening ports are arranged at intervals on the circumferential side of the side of the upper mold facing away from the lower mold, and the mold opening ports are used to remove the upper mold.

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