A vulcanization device

Abstract

The present invention provides a vulcanization device, which includes a machine base, a first guiding structure, a top cover, a first driving device, a first mounting plate, a second mounting plate, a connecting structure, a second driving device, a second guiding structure, a third mounting plate, an upper mold, a lower mold, a left mold, a right mold, an inflatable inner bladder, a gas needle and an air flow channel; in the vulcanization device of the present invention, the inflatable inner bladder is directly fixedly installed on the lower mold, and the gas needle is arranged at the installation cavity position in the middle of the lower mold cavity. When the inflatable inner bladder is installed on the lower mold, the gas needle is directly inserted into the inflatable inner bladder; when using the vulcanization device for production, workers directly sleeved the rubber blank on the inflatable inner bladder, and then the four molds are closed. The inflatable inner bladder sleeved with the rubber blank is located inside the mold cavity, and then the next step of heating and blowing molding is carried out; since there is no need to insert the gas needles arranged on the left and right molds into the holes of the vulcanization inner bladder, the gas needles are not easily damaged, the qualified rate is improved, the production cost is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of rubber vulcanization equipment, and in particular to a vulcanization equipment for rubber flexible joints. Background Art

[0002] Vulcanization is the final and most important step in the processing of rubber products. Through a series of complex chemical reactions, it transforms rubber into a highly elastic or hard cross-linked rubber, thereby imparting the corresponding mechanical and chemical properties. Unvulcanized rubber consists of large linear molecules. When subjected to external forces, these molecules shift, resulting in noticeable deformation. However, after vulcanization, the rubber's molecular structure forms a network, restricting the movement of the macromolecules. This results in vulcanized rubber having greater tensile and elastic strength than unvulcanized rubber.

[0003] The rubber flexible joint is a relatively special rubber product (the finished product structure can be referred to Chinese appearance patent CN305496695S). Its final molding and vulcanization are completed in this last process. The previous process is to put the already manufactured cylindrical rubber blank (with large inner diameters at the upper and lower ends and a small inner diameter in the middle, which is very different from the appearance of the finished rubber flexible joint) on the vulcanization liner, place them together inside the mold, and carry out subsequent molding and vulcanization inside the mold; because the shape of the rubber blank and the shape of the rubber flexible joint are very different, the molding process requires heating the rubber blank inside the mold. After heating the rubber blank to soften, the vulcanization liner is inflated, and the vulcanization liner expands the rubber blank and squeezes it into the mold to form.

[0004] The traditional production process is to set the mold into four pieces that can cooperate with each other. When the upper and lower pieces are connected, several inner cavities can be formed. Each inner cavity is used to load a vulcanized liner with a rubber blank; the left and right pieces are used for connection, pressure, and inflating the vulcanized liner. In order to improve production efficiency, the current production process has also been designed as a semi-automated equipment. During the actual production, the lower mold automatically extends, and the worker places the vulcanized liner with the rubber blank on the lower mold one by one horizontally. After placement, the lower mold retracts, and the upper mold presses down. The upper and lower molds are closed to form an inner cavity space. The left and right molds are squeezed toward the middle and closed until they are aligned with the ends of the upper and lower molds. When the left and right molds are squeezed toward the middle, the air needles set on the left and right molds need to be accurately inserted into the holes of the vulcanized liner. After completing this step, the vulcanizer starts working and heats the mold. After heating to a certain degree, the vulcanized liner is inflated. After the vulcanized liner expands, the rubber blank is squeezed onto the inner wall of the mold, forming the appearance of the rubber flexible joint.

[0005] However, the above-mentioned existing technologies have technical defects. That is, when the upper and lower molds are closed and the left and right molds are squeezed towards the middle for closing, the air needles provided on the left and right molds often cannot accurately insert into the holes of the vulcanized inner bladder, resulting in damage to the air needles, production failure, and an increase in the rejection rate. Therefore, the applicant has designed a new type of vulcanization device that does not require the operation of inserting needles into the vulcanized inner bladder, avoiding damage to the air needles, improving the production efficiency, and reducing the rejection rate. Summary of the Invention

[0006] Therefore, the object of the present invention is to provide a new type of vulcanization device.

[0007] For this purpose, the present invention provides a vulcanization device, including:

[0008] A machine base;

[0009] A first guiding structure, fixedly arranged on the machine base along the vertical direction;

[0010] A top cover, opposite to the machine base, fixedly arranged at the top end of the first guiding structure;

[0011] A first driving device, installed on the top cover, having a first driving shaft;

[0012] A first mounting plate, movably arranged between the machine base and the top cover through the first guiding structure in the up and down direction, and the first mounting plate is connected to the first driving shaft;

[0013] Two second mounting plates, arranged opposite to each other left and right, and respectively movably arranged between the first mounting plate and the machine base through the first guiding structure in the up and down direction;

[0014] A connecting structure, connecting the first mounting plate and the second mounting plate, and the first mounting plate drives the second mounting plate to move up and down along the first guiding structure through the connecting structure;

[0015] Two second driving devices, respectively arranged oppositely on the two second mounting plates, having second driving shafts;

[0016] A second guiding structure, fixedly arranged between the two second mounting plates along the horizontal direction;

[0017] Two third mounting plates, movably arranged between the two second mounting plates through the second guiding structure in the left and right direction, and respectively connected to the second driving shafts of the two second driving devices;

[0018] An upper mold, installed on the bottom surface of the first mounting plate, having an upper mold cavity;

[0019] a lower die, mounted on the machine base, opposite to the upper die, and having a lower die cavity, the lower die cavity being opposite to the upper die cavity;

[0020] A left mold, mounted on the third mounting plate on the left side, having a left mold cavity;

[0021] a right mold, mounted on the third mounting plate on the right side, having a right mold cavity, the right mold cavity being opposite to the left mold cavity;

[0022] An inflatable liner is fixedly arranged on the lower mold cavity;

[0023] An air needle is provided on the lower mold cavity and extends into the interior of the inflatable liner;

[0024] an air flow channel, provided on at least one of the lower mold, the upper mold, the left mold and the right mold, and communicated with the air needle air channel;

[0025] When the upper mold, the lower mold, the left mold and the right mold are closed, the inflatable liner is located in the mold cavity formed by the upper mold, the lower mold, the left mold and the right mold.

[0026] As a preferred solution, the first guide structure is a first guide rod with a smooth outer diameter arranged between the machine base and the top cover; and / or the second guide structure is a second guide rod with a smooth outer diameter arranged between the two first mounting plates.

[0027] As a preferred solution, the connection structure includes connecting columns, and the number of the connecting columns is at least four; wherein,

[0028] At least two of the ends are connected to the top of the second mounting plate, pass through the through hole provided on the first mounting plate, and then extend for a certain length and are provided with a fixed plug;

[0029] One end of at least two others is connected to the top of another second mounting plate, passes upward through the through hole provided on the first mounting plate, continues to extend for a certain length, and is provided with a fixed plug.

[0030] As a preferred solution, the inflatable liner includes:

[0031] The liner is cylindrical, made of elastic and retractable material, and has a hollow inner cavity; the top has a top surface, the bottom has a bottom surface, and the bottom surface is provided with a bottom through hole communicating with the hollow inner cavity;

[0032] A movable support member is installed inside the hollow inner cavity, comprising an upper support member and a lower support member, wherein the upper support member and the lower support member can move relative to each other along the axial direction by a certain distance;

[0033] The top cover is installed on the top of the inner container, and the top cover, the top surface and the upper support are fixedly connected.

[0034] The base is fixedly installed on the lower mold and has a connecting portion which is a hollow cylindrical shape. The base is further provided with a second through hole which communicates with the inner cavity of the connecting portion. The connecting portion passes through the bottom through hole and is fixedly connected to the lower support, and fixes the bottom surface between the base and the lower support.

[0035] As a preferred solution, when the upper support and the lower support extend to the longest length, it is 0.8 - 1.2 times the axial length of the hollow inner cavity; when the upper support and the lower support are shortened to the shortest length, it is at least 3 mm shorter than the axial length of the hollow inner cavity.

[0036] As a preferred solution, the upper support includes an upper end portion and a lower cylinder. One end of the lower cylinder is fixedly connected to the upper end portion, and the other end extends in a direction away from the upper end portion.

[0037] The lower support includes a lower end portion and an upper cylinder. One end of the upper cylinder is fixedly connected to the lower end portion, and the other end extends in a direction away from the lower end portion.

[0038] The lower cylinder and the upper cylinder are sleeved and arranged so as to be relatively movable.

[0039] The lower cylinder is provided with a long through hole, and the upper cylinder is provided with a limiting post; or, the lower cylinder is provided with a limiting post, and the upper cylinder is provided with a long through hole.

[0040] The limiting post passes through the long through hole.

[0041] As a preferred solution, the base has a bottom plate, the connecting portion is arranged on the bottom plate, and when the connecting portion is fixedly connected to the lower support, the bottom surface is squeezed and fixed between the lower support and the bottom plate.

[0042] As a preferred solution, at one end of the bottom plate away from the connecting portion, a connecting sleeve is fixedly provided. The connecting sleeve has an external thread and is adapted to be screwed and fixed to a lower threaded hole provided on the lower mold cavity.

[0043] As a preferred solution, an installation cavity is provided in the middle of the lower mold cavity, a connecting cavity is provided in the middle of the installation cavity, a ventilation hole is provided in the middle of the connecting cavity, and an air needle is installed at the position of the ventilation hole.

[0044] When the base is installed inside the installation cavity, the outer wall of the connecting sleeve is screwed and fixed to the inner wall of the connecting cavity. The bottom plate may or may not be in contact with the step connecting the installation cavity and the connecting cavity. The side wall of the bottom plate is located at the position of the installation cavity. After being installed in place, the upper edge of the side wall of the bottom plate is substantially flush with the upper edge of the installation cavity.

[0045] As a preferred solution, the lower mold is movably installed on the machine base and has a working position where it moves to a position on the machine base opposite to the upper mold, and a loading position where it moves to one side of the machine base and is not opposite to the upper mold.

[0046] As a preferred solution, it further includes a receiving frame provided with a plurality of receiving columns for receiving the products after demoulding.

[0047] The receiving frame is movably installed on the machine base and has a receiving position where it moves to a position on the machine base opposite to the position after the left mold and the right mold are closed, and a discharging position where it moves to one side of the machine base.

[0048] As a preferred solution, the lower mold and the receiving frame are connected in series by a movable mechanism, and the movable mechanism drives the lower mold and the receiving frame to move back and forth.

[0049] As a preferred solution, the movable mechanism includes:

[0050] A pair of slide rails, which are arranged oppositely, with one end fixed on the machine base and the other end extending towards the side away from the machine base. The receiving frame can slide back and forth along the slide rails.

[0051] Supporting wheels, which are provided in several numbers and are evenly installed on the side surfaces of the two slide rails close to each other.

[0052] A sliding plate for fixedly carrying the lower mold, which can slide back and forth above the machine base and the supporting wheels.

[0053] At least two fixed pulleys are respectively arranged at both ends of the slide rails;

[0054] A pulling rope, which is in a ring shape, passes around the two fixed pulleys and is fixedly connected to the sliding plate and the receiving frame respectively.

[0055] A third driving device is used to drive the sliding plate to move back and forth, and further drive the receiving frame to move back and forth.

[0056] The technical solution provided by the present invention has the following advantages:

[0057] The vulcanization equipment of the present invention is different from traditional vulcanization equipment. When traditional vulcanization equipment is used, the vulcanization inner bladder sleeved with a rubber blank needs to be horizontally placed on the lower mold first. After the lower mold retracts to a position opposite to the upper mold, the upper and lower molds are closed. Then, the left and right molds descend to a position directly opposite to the position of the closed upper and lower molds, and then squeeze towards the middle. When squeezing, the air needles arranged on the left and right molds need to be accurately inserted into the holes of the vulcanization inner bladder. However, the vulcanization equipment of the present invention is different. The vulcanization equipment of the present invention directly fixedly installs the inflatable inner bladder on the lower mold, and the air needles are arranged at the installation cavity position in the middle of the lower mold cavity. The inflatable inner bladder is fixedly installed on the lower mold, and the air needles always remain inserted into the inflatable inner bladder. When using the vulcanization equipment for production, the worker directly sleeved the rubber blank on the inflatable inner bladder, and then the four molds are closed. The inflatable inner bladder sleeved with the rubber blank is located inside the mold cavity, and at this time, the next step of heating and blowing molding can be carried out. The vulcanization equipment of the present invention does not need to accurately insert the air needles arranged on the left and right molds into the holes of the vulcanization inner bladder when closing the mold, eliminating the step of inserting the air needles, so it is not easy to damage the air needles, improving the yield rate, reducing the production cost, and improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the prior art or the specific embodiments of the present invention, the following briefly introduces the drawings used in the description of the prior art or the specific embodiments.

[0059] Figure 1 is the overall structural schematic diagram of the vulcanization equipment of the present invention.

[0060] Figure 2 is Figure 1 the enlarged structural schematic diagram of part A in

[0061] Figure 3 is Figure 1 another perspective view of

[0062] Figure 4 is for installing on Figure 1 the explosion structural schematic diagram of the vulcanization mold on the vulcanization equipment in

[0063] Figure 5 is Figure 4 the enlarged structural schematic diagram of part B in

[0064] Figure 6 is the cross-sectional view of the vulcanization inner bladder installed on the lower mold.

[0065] Figure 7 is the perspective view of the vulcanization inner bladder.

[0066] Figure 8 is Figure 7 another perspective view of

[0067] Figure 9 is Figure 7 a sectional view of.

[0068] Figure 10 is Figure 7 a sectional view after rotating 90°.

[0069] Figure 11 is a schematic structural diagram of the cooperation and connection between the upper support member and the lower support member.

[0070] Reference numerals: 100, lower die; 101, lower die cavity; 102, installation cavity; 103, ventilation hole; 104, step; 105, connection cavity; 200, upper die; 201, upper die cavity; 300, left die; 301, left die cavity; 400, right die; 401, right die cavity; 500, inflatable inner bladder; 600, air flow channel; 601, machine base; 602, top cover; 603, first driving device; 604, first driving shaft; 605, first mounting plate; 606, connecting column; 607, fixed plug; 608, first guide rod; 609, second guide rod; 701, second mounting plate; 702, second driving device; 703, second driving shaft; 704, third mounting plate; 801, receiving frame; 802, receiving column; 901, slide rail; 902, supporting wheel; 903, sliding plate; 1, inner bladder; 10, hollow inner cavity; 11, top surface; 12, bottom surface; 13, bottom through hole; 14, top through hole; 2, upper support member; 20, upper threaded hole; 21, upper end portion; 22, lower cylinder; 23, long strip through hole; 3, lower support member; 30, lower threaded hole; 31, lower end portion; 32, upper cylinder; 33, limiting column; 4, top cover; 41, first through hole; 5, base; 50, bottom plate; 51, connecting portion; 52, second through hole; 54, bottom plate side wall; 55, connecting sleeve; 6, air needle. Detailed implementation manners

[0071] In order to enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0072] It should be noted that the terms "first", "second", etc. in the claims and the specification of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units is not limited to those steps or units clearly listed, but may also include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0073] In this application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those skilled in the art, the specific meanings of these terms in this application can be understood according to specific circumstances. In addition, the meaning of the term "plurality" should be two or more. It should be noted that, without conflict, the embodiments and the features in the embodiments of this application can be combined with each other. The following will describe this application in detail with reference to the drawings and in combination with the embodiments.

[0074] Embodiment

[0075] This embodiment provides a vulcanization device, as Figures 1-4 shown, including a machine base 601, a first guiding structure, a top cover 602, a first driving device 603, a first mounting plate 605, a second mounting plate 701, a connecting structure, a second driving device 702, a second guiding structure, a third mounting plate 704, and a lower mold 100, an upper mold 200, a left mold 300, a right mold 400, an inflatable inner bladder 500, a gas needle 6, and an air flow channel 600.

[0076] Among them: The machine base 601 is fixedly arranged; the first guiding structure is fixedly arranged on the machine base 601 along the vertical direction. In this embodiment, the first guiding structure is a first guiding rod 608 with a smooth outer diameter. There are 4 first guiding rods 608, which are fixedly installed between the machine base 601 and the top cover 602 along the vertical direction; the top cover 602 is opposite to the machine base 601 and is fixedly arranged at the top of the first guiding structure, that is, fixedly arranged at the top of the four first guiding rods 608.

[0077] The first driving device 603 is installed on the top cover 602 and has a first driving shaft 604 extending downward; the first mounting plate 605 is arranged between the machine base 601 and the top cover 602 so as to be movable up and down through a first guiding structure, and the first mounting plate 605 is connected to the first driving shaft 604; specifically, a first guiding hole is provided on the first mounting plate 605 and sleeved on the first guiding rod 608.

[0078] There are two second mounting plates 701, which are arranged opposite to each other left and right, and are respectively arranged between the first mounting plate 605 and the machine base 601 so as to be movable up and down through a first guiding structure; the first mounting plate 605 and the second mounting plates 701 are connected through a connecting structure, and the first mounting plate 605 drives the second mounting plates 701 to move up and down along the first guiding structure through the connecting structure.

[0079] Specifically, the connecting structure includes connecting columns 606. There are at least four connecting columns 606. At least two of them have one end connected to the top of one second mounting plate 701, pass upward through a through hole provided on the first mounting plate 605, and after extending a certain length, a fixed plug 607 is provided; at least two of the other ends are connected to the top of the other second mounting plate 701, pass upward through a through hole provided on the first mounting plate 605, and after extending a certain length, a fixed plug 607 is provided. The function of such a setting is that when demolding, the first driving device 603 first drives the first mounting plate 605 to move upward through the first driving shaft 604, and then drives the upper mold 200 to move upward. The upper mold 200 first separates from the top of the rubber soft joint; after the upper mold 200 separates from the top of the rubber soft joint, the fixed plug 607 of the connecting structure starts to contact the top of the first mounting plate 605. At this time, the first driving shaft 604 drives the second mounting plates 701 to move upward through the first mounting plate 605 and the connecting columns 606, and then drives the left mold 300 and the right mold 400 to move upward, so that the rubber soft joint can be taken off from the inflatable inner bladder 500 and retained between the left mold 300 and the right mold 400.

[0080] There are two second driving devices 702, which are respectively arranged on the two second mounting plates 701 oppositely and have second driving shafts 703; a second guiding structure is fixedly arranged horizontally between the two second mounting plates 701; the second guiding structure is a second guiding rod 609 with a smooth outer diameter, and there are at least two of them, which are arranged between the two second mounting plates 701.

[0081] There are two third mounting plates 704, which are arranged between the two second mounting plates 701 so as to be movable left and right through the second guiding structure. Specifically, second guiding holes are provided on the third mounting plates 704 and sleeved on the second guiding rods 609 to realize movable mounting, and the two third mounting plates 704 are respectively connected to the second driving shafts 703 of the two second driving devices 702.

[0082] The upper mold 200 is installed on the bottom surface of the first mounting plate 605 and has an upper mold cavity 201; the lower mold 100 is installed on the machine base 601, opposite to the upper mold 200, and has a lower mold cavity 101, and the lower mold cavity 101 is opposite to the upper mold cavity 201.

[0083] The left mold 300 is installed on the third mounting plate 704 on the left side and has a left mold cavity 301; the right mold 400 is installed on the third mounting plate 704 on the right side and has a right mold cavity 401, and the right mold cavity 401 is opposite to the left mold cavity 301. After the left mold 300 and the right mold 400 are closed.

[0084] The inflatable inner bladder 500 is fixedly arranged on the lower mold cavity 101; the air needle 6 is arranged on the lower mold cavity 101 and extends into the inflatable inner bladder 500; the air flow channel 600 is arranged on at least one of the lower mold 100, the upper mold 200, the left mold 300 and the right mold 400 and is in airway communication with the air needle 6; when the upper mold 200, the lower mold 100, the left mold 300 and the right mold 400 are closed, the inflatable inner bladder 500 is located in the mold cavity formed by the closing of the upper mold 200, the lower mold 100, the left mold 300 and the right mold 400.

[0085] Compared with traditional equipment, the improvement of the vulcanization equipment in this embodiment lies in fixedly arranging the inflatable inner bladder 500 inside the lower mold cavity 101 of the lower mold 100 and fixedly arranging the air needle 6 on the lower mold cavity 101; when installing the inflatable inner bladder 500 into the lower mold cavity 101, the air needle 6 extends into the inflatable inner bladder 500 for inflating and deflating the inflatable inner bladder 500. During subsequent production, the inflatable inner bladder 500 and the lower mold cavity 101 always maintain a fixed connection, and the air needle 6 is always inserted into the inflatable inner bladder 500. Compared with traditional equipment, when the left and right molds are closed, there is no longer a problem of inserting the air needle 6 arranged on the left and right molds into the inflatable inner bladder 500, so the air needle 6 is not easily damaged, the product yield rate increases, and since the alignment accuracy is no longer as strict as before, the production is easier and the efficiency is higher.

[0086] The inflatable inner bladder 500 can be a conventional inner bladder structure or an improved type. This embodiment also discloses an improved inflatable inner bladder 500, such as Figures 7-11As shown in the figure, it includes an inner container 1, a movable support, a top cover 4 and a base 5. Among them: The inner container 1 is cylindrical, made of elastic and telescopic material, and has a hollow inner cavity 10; it has a top surface 11 at the top and a bottom surface 12 at the bottom, and a bottom through hole 13 communicating with the hollow inner cavity 10 is opened on the bottom surface 12; the movable support is installed inside the hollow inner cavity 10, including an upper support 2 and a lower support 3, and the upper support 2 and the lower support 3 can move relative to each other axially by a certain distance; the top cover 4 is installed on the top of the inner container 1, and the top cover 4, the top surface 11 and the upper support 2 are fixedly connected; the base 5 is fixedly installed on the lower die 100, and has a connecting part 51, and the connecting part 51 is a hollow cylinder; a second through hole 52 is also provided on the base 5, and the second through hole 52 communicates with the inner cavity of the connecting part 51; the connecting part 51 passes through the bottom through hole 13 and is fixedly connected to the lower support 3, and fixes the bottom surface 12 between the base 5 and the lower support 3.

[0087] Further, when the upper support 2 and the lower support 3 are extended to the longest length, it is 0.9 times the axial length of the hollow inner cavity 10; when the upper support 2 and the lower support 3 are shortened to the shortest length, it is 3 mm shorter than the axial length of the hollow inner cavity 10.

[0088] The advantage of the above improved inflatable inner container 500 is that a support with a hard support function is provided inside the inflatable inner container 500. When a worker sleeves a rubber blank on the inflatable inner container 500, the inflatable inner container 500 is not easily bent and the sleeving is more convenient; when the upper support 2 and the lower support 3 are shortened to the shortest length, it is 3 mm shorter than the axial length of the hollow inner cavity 10. When the upper die presses down and contacts the top of the inflatable inner container 500, it may continue to press down a certain distance. Since the upper and lower supports are at the shortest length at this time, they will not abut against the upper die and will not prevent the normal pressing down of the upper die; moreover, the upper and lower dies can properly limit the inflatable inner container 500, so that the top of the inflatable inner container 500 can basically remain directly opposite to the cavity of the upper die without deviation; when vulcanization is completed and demolding is required, the top of the inflatable inner container 500 may adhere to the upper die. When the upper die moves upward, it will stretch the inflatable inner container 500. After the upper support 2 and the lower support 3 are provided, when the inflatable inner container 500 is stretched to the maximum length of the upper and lower supports, the upper and lower supports will help the inflatable inner container 500 resist the pulling force of the upper die, so as to pull the top of the inflatable inner container 500 away from the upper die, smoothly achieve demolding, and can protect the inner container from being damaged by excessive stretching.

[0089] As a deformation design scheme, it can be set that when the upper support 2 and the lower support 3 are extended to the longest length, it is 0.8 - 1.2 times the axial length of the hollow inner cavity 10; when the upper support 2 and the lower support 3 are shortened to the shortest length, it is at least 3 mm shorter than the axial length of the hollow inner cavity 10. The specific values can be determined by those skilled in the art according to the actual situation.

[0090] In this embodiment, the upper support member 2 includes an upper end portion 21 and a lower cylinder 22. One end of the lower cylinder 22 is fixedly connected to the upper end portion 21, and the other end extends away from the upper end portion 21. The lower support member 3 includes a lower end portion 31 and an upper cylinder 32. One end of the upper cylinder 32 is fixedly connected to the lower end portion 31, and the other end extends away from the lower end portion 31. The lower cylinder 22 and the upper cylinder 32 are sleeved and arranged so as to be relatively movable. A long strip through hole 23 is formed in the lower cylinder 22, and a limiting post 33 is arranged on the upper cylinder 32 (alternatively, the limiting post 33 can also be arranged on the lower cylinder 22, and a long strip through hole 23 is formed in the upper cylinder 32). The limiting post 33 is arranged in the long strip through hole 23.

[0091] A first through hole 41 is formed in the top plate 4, a top through hole 14 is formed in the top surface 11, and an upper threaded hole 20 is formed in the upper support member 2. The first through hole 41, the top through hole 14 and the upper threaded hole 20 are arranged vertically opposite to each other. After using a bolt to pass through the first through hole 41 and the top through hole 14, it is screwed and fixedly connected to the upper threaded hole 20. This is a way given by the applicant to fixedly connect the top plate 4, the top surface 11 and the upper support member 2. Those skilled in the art can also use other existing fixing methods that can achieve this purpose.

[0092] A top plate side wall 42 is integrally formed on the side of the top plate 4. The top plate 4 and the top plate side wall 42 form a top cover, and the top of the inner container 1 is installed into the inside of the top cover.

[0093] The base 5 provided at the lower part of the inflatable inner container 500 has a bottom plate 50. A connecting portion 51 is arranged on the bottom plate 50. When the connecting portion 51 is fixedly connected to the lower support member 3, the bottom surface 12 is squeezed and fixed between the lower support member 3 and the bottom plate 50. A second through hole 52 is formed in the bottom plate 50. The second through hole 52 is directly opposite to the cavity of the connecting portion 51, and the aperture is smaller than the aperture of the cavity of the connecting portion 51.

[0094] It further includes a sealing washer 56 and a sealing nut 57. The sealing washer 56 is sleeved on the part of the air needle 6 that penetrates into the inner cavity of the connecting portion 51. The sealing nut 57 is threadedly connected to the inner wall of the connecting portion 51 and is used to squeeze the sealing washer 56 to achieve a sealed connection.

[0095] A bottom plate side wall 54 is integrally formed on the side of the bottom plate 50. The bottom plate 50 and the bottom plate side wall 54 form a bottom cover, and the bottom of the inner container 1 is installed into the inside of the bottom cover. After the bottom of the inner container 1 is installed into the inside of the bottom cover, the bottom position of the inner container 1 can be protected.

[0096] In this embodiment, as Figures 4-6As shown in the figure, an installation cavity 102 is provided in the middle of the lower die cavity 101. A connection cavity 105 is provided in the middle of the installation cavity 102. A ventilation hole 103 is provided in the middle of the connection cavity 105. The air needle 6 is installed at the position of the ventilation hole 103. At one end of the bottom plate 50 away from the connection part 51, a connection sleeve 55 is fixedly provided. The connection sleeve 55 has an external thread, and the outer wall of the connection sleeve 55 is screwed and fixed to the inner wall of the connection cavity 105. After the outer wall of the connection sleeve 55 is screwed and fixed to the inner wall of the connection cavity 105, the bottom plate 50 contacts or does not contact the step 104. The side wall 54 of the bottom plate is located at the position of the installation cavity 102, and after being installed in place, the upper edge of the side wall 54 of the bottom plate is basically flush with the upper edge of the installation cavity 102.

[0097] In this embodiment, the lower die 100 is movably installed on the machine base 601, and has a working position that moves to the machine base 601 and faces the upper die 200, and a loading position that moves to one side of the machine base 601 and does not face the upper die 200.

[0098] It further includes a receiving frame 801. A number of receiving columns 802 are provided on the receiving frame 801 for receiving the products after demolding. The receiving frame 801 is movably installed on the machine base 601, and has a receiving position that moves to the machine base 601 and faces the position after the left die 300 and the right die 400 are closed, and an unloading position that moves to one side of the machine base 601.

[0099] The lower die 100 and the receiving frame 801 are connected in series through a movable mechanism, and the movable mechanism drives the lower die 100 and the receiving frame 801 to move back and forth.

[0100] As Figures 1-3 shown, the movable mechanism includes: a slide rail 901, a supporting wheel 902, a slide plate 903, a fixed pulley, a pulling rope and a third driving device. Among them,

[0101] There is a pair of slide rails 901, which are arranged oppositely, one end is fixed on the machine base 601, and the other end extends towards the side away from the machine base 601. The receiving frame 801 can slide back and forth along the slide rail 901. There are several supporting wheels 902, which are evenly installed on the side surfaces of the two slide rails 901 close to each other. The slide plate 903 is used to fixedly carry the lower die 100 and can slide back and forth above the machine base 601 and the supporting wheels 902. There are at least two fixed pulleys, which are respectively arranged at both ends of the same slide rail 901. The pulling rope is in a ring shape, passes around the two fixed pulleys, and is respectively fixedly connected to the slide plate 903 and the receiving frame 801. The third driving device is used to drive the slide plate 903 to move back and forth, and further drive the receiving frame 801 to move back and forth.

[0102] The advantage of setting the pulling rope into a loop, passing it around two fixed pulleys, and fixedly connecting it to the sliding plate 903 and the receiving frame 801 respectively is that when the sliding plate 903 is located on the machine base 601 and is opposite to the upper mold 200, the receiving frame 801 is located outside the machine. After the rubber blank installed on the lower mold 100 is formed and vulcanized, the upper mold 200 and the lower mold 100 are separated, the left mold 300 and the right mold 400 still remain closed, and are lifted to a high position. The third driving device operates to drive the sliding plate 903 to be pushed out from the position opposite to the upper mold 200 along the slide rail 901 to the outside of the machine base 601. At this time, due to the action of the pulling rope, the pulling rope drives the receiving frame 801 to move to a position below the closed position of the left mold 300 and the right mold 400; control the left mold 300 and the right mold 400 to separate, and the finished rubber flexible joint falls on the receiving column 802 of the receiving frame 801; by installing the rubber blank on the lower mold 100 located outside the machine base 601, when the lower mold 100 is pushed into the machine base 601 again to be opposite to the upper mold 200, the receiving frame 801 loaded with the finished rubber flexible joint is moved out, which is convenient for workers to collect.

[0103] The usage process of the vulcanization equipment in this embodiment is as follows:

[0104] Initial state: The first driving device 603 drives the first mounting plate 605 to move upward to the top along the first guide rod 608 through the first driving shaft 604. The upper mold 200 is installed on the bottom surface of the first mounting plate 605 and also moves upward to the top position along with the first mounting plate 605;

[0105] When the first mounting plate 605 moves, it drives the two second mounting plates 701 to move upward through the connecting column 606. The second driving devices 702 respectively installed on the two second mounting plates 701 drive the third mounting plates 704 to separate along the second guide rod 609 through the second driving shafts 703. The left mold 300 and the right mold 400 are respectively oppositely installed on the two third mounting plates 704 and also separate along with the third mounting plates 704;

[0106] The third driving device pulls the sliding plate 903 to move onto the machine base 601, so that the lower mold 100 installed on the sliding plate 903 is opposite to the upper mold 200 installed on the first mounting plate 605; when pulling the sliding plate 903, the sliding plate 903 drives the receiving frame 801 to move to the outside of the machine through the pulling rope and the fixed pulleys arranged at both ends of the slide rail 901.

[0107] Start to start working: The third driving device starts and pushes the sliding plate 903 to move outward. The sliding plate 903 gradually moves onto the supporting wheel 902. The movement of the sliding plate 903 simultaneously drives the receiving frame 801 to move onto the machine base 601 and be located below the upper mold 200 through the pulling rope;

[0108] After the slide plate 903 is moved into position, the lower mold 100 is installed on the slide plate 903, and the inflatable liner 500 is fixedly installed on the lower mold 100. The worker begins to put the rubber blank on the inflatable liner 500;

[0109] After all the sleeves are installed, the third driving device is started, pulling the slide 903 inward. The slide 903 gradually moves from the support wheel 902 to the machine base 601 until it moves to the initial position, so that the lower mold 100 is positioned opposite the upper mold 200. Similarly, the movement of the slide 903 simultaneously drives the support frame 801 to move along the slide rail 901 to the outside of the machine through the pulling rope.

[0110] The first drive device 603 is activated, the first drive shaft 604 extends, and the first mounting plate 605 moves downward along the first guide rod 608. The second mounting plate 701 is connected to the first mounting plate 605 via the connecting column 606 and moves downward along with the first mounting plate 605 until the second mounting plate 701 is lowered to face the lower mold 100. Then, the first drive device 603 stops.

[0111] The second driving device 702 is started, and the two third mounting plates 704 are driven to move toward the middle through the second driving shaft 703 until the left mold 300 and the right mold 400 are closed at the inflatable liner position and then stop;

[0112] The first driving device 603 is started again, and the first driving shaft 604 continues to extend downward until the upper mold 200 mounted on the first mounting plate 605 is closed on the left mold 300 and the right mold 400 and stops;

[0113] The equipment heats the upper mold 200, the lower mold 100, the left mold 300, and the right mold 400 to a certain temperature. Then, air is inflated into the inflatable liner 500 through the air needle 6 via the air flow channel 600 provided on the upper mold 200, the lower mold 100, the left mold 300, or the right mold 400. After the inflatable liner 500 expands, the heated and softened rubber blank is squeezed into the mold cavity for a certain period of time. Then, the gas in the inflatable liner 500 is discharged through the air needle 6 and the air flow channel 600, and the inflatable liner 500 recovers.

[0114] The first driving device 603 is started and moves upward via the first driving shaft 604. At this time, the upper mold 200 mounted on the first mounting plate 605 is separated from the top of the inflatable liner 500.

[0115] The first drive shaft 604 continues to move upward, driving the second mounting plate 701 upward via the connecting column 606. The finished rubber flexible joint is then held by the left mold 300 and the right mold 400 mounted on the third mounting plate 704. The two molds move upward together and are demolded from the lower mold 100. The first drive shaft 604 rises to its initial position, and the first drive device 603 stops.

[0116] The third driving device starts, driving the slide plate 903 to move along the slide rail 901 until it moves above the supporting wheel 902 located on one side of the device; while the third driving device drives the slide plate 903 to move, the slide plate 903 drives the receiving frame 801 to move onto the machine base 601 through the pulling rope and the fixed pulley until it is vertically opposite to the position where the left mold 300 and the right mold 400 are clamped, and each receiving column 802 is vertically opposite to the position where a pair of left mold 300 and right mold 400 are clamped;

[0117] The second driving device 702 starts, driving the two third mounting plates 704 to separate left and right through the second driving shaft 703, separating the left mold 300 and the right mold 400, and the finished rubber flexible joint falls onto the receiving column 802;

[0118] Reinstall the rubber flexible joint on the lower mold 100 installed on the slide plate 903, and the next production cycle can be carried out.

[0119] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or variations can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or variations derived therefrom are still within the protection scope of this innovative technical solution.

Claims

1. A vulcanization device, characterized in that, Including: A machine base (601); A first guiding structure fixedly arranged on the machine base (601) in the vertical direction; A top cover (602), opposite to the machine base (601), fixedly arranged at the top end of the first guiding structure; A first driving device (603) installed on the top cover (602) and having a first driving shaft (604); A first mounting plate (605) movably arranged up and down between the machine base (601) and the top cover (602) through the first guiding structure, and the first mounting plate (605) is connected to the first driving shaft (604); There are two second mounting plates (701), arranged opposite to each other left and right, and respectively movably arranged up and down between the first mounting plate (605) and the machine base (601) through the first guiding structure; A connecting structure connecting the first mounting plate (605) and the second mounting plate (701), and the first mounting plate (605) drives the second mounting plate (701) to move up and down along the first guiding structure through the connecting structure; There are two second driving devices (702), respectively arranged opposite to each other on the two second mounting plates (701) and having second driving shafts (703); A second guiding structure fixedly arranged horizontally between the two second mounting plates (701); There are two third mounting plates (704), movably arranged left and right between the two second mounting plates (701) through the second guiding structure, and respectively connected to the second driving shafts (703) of the two second driving devices (702); An upper mold (200) installed on the bottom surface of the first mounting plate (605) and having an upper mold cavity (201); A lower mold (100) installed on the machine base (601), opposite to the upper mold (200), and having a lower mold cavity (101), and the lower mold cavity (101) is opposite to the upper mold cavity (201); A left mold (300) installed on the left third mounting plate (704) and having a left mold cavity (301); A right mold (400) installed on the right third mounting plate (704) and having a right mold cavity (401), and the right mold cavity (401) is opposite to the left mold cavity (301); An inflatable inner bladder (500) fixedly arranged on the lower mold cavity (101); An air needle (6) arranged on the lower mold cavity (101) and extending into the interior of the inflatable inner bladder (500); An air flow channel (600) arranged on at least one of the lower mold (100), the upper mold (200), the left mold (300) and the right mold (400), and in airway communication with the air needle (6); When the upper mold (200), the lower mold (100), the left mold (300) and the right mold (400) are closed, the inflatable inner bladder (500) is located in the mold cavity formed by the closing of the upper mold (200), the lower mold (100), the left mold (300) and the right mold (400); The first guiding structure is a first guiding rod (608) with a smooth outer diameter disposed between the machine base (601) and the top cover (602); and / or, the second guiding structure is a second guiding rod (609) with a smooth outer diameter disposed between the two second mounting plates (701).

2. The vulcanization equipment according to claim 1, characterized in that: The connecting structure includes connecting columns (606), and there are at least four connecting columns (606); among them, one end of at least two is connected to the top of one of the second mounting plates (701), passes upward through a through hole provided on the first mounting plate (605), and after extending a certain length, a fixed plug (607) is provided; one end of at least two others is connected to the top of the other second mounting plate (701), passes upward through a through hole provided on the first mounting plate (605), and after extending a certain length, a fixed plug (607) is provided.

3. The vulcanization device according to claim 1, characterized in that, The inflatable inner bladder (500) includes: An inner bladder (1), which is cylindrical, made of an elastic and telescopic material, and has a hollow inner cavity (10); it has a top surface (11) at the top and a bottom surface (12) at the bottom, and a bottom through hole (13) communicating with the hollow inner cavity (10) is provided on the bottom surface (12); A movable support member, installed inside the hollow inner cavity (10), including an upper support member (2) and a lower support member (3), and the upper support member (2) and the lower support member (3) can relatively move axially by a certain distance; A top cover (4), installed on the top of the inner bladder (1), and the top cover (4), the top surface (11) and the upper support member (2) are fixedly connected; A base (5), detachably and fixedly installed on the lower die (100), having a connecting portion (51), and the connecting portion (51) is a hollow cylinder; a second through hole (52) is further provided on the base (5), and the second through hole (52) communicates with the inner cavity of the connecting portion (51) for the air needle (6) to pass through; the connecting portion (51) passes through the bottom through hole (13) and is fixedly connected to the lower support member (3), and fixes the bottom surface (12) between the base (5) and the lower support member (3).

4. The vulcanization device according to claim 3, characterized in that: When the upper support member (2) and the lower support member (3) extend to the longest length, it is 0.8 - 1.2 times the axial length of the hollow inner cavity (10); when the upper support member (2) and the lower support member (3) shorten to the shortest length, it is at least 3 mm shorter than the axial length of the hollow inner cavity (10).

5. The vulcanization device according to claim 3 or 4, wherein: The upper support member (2) includes an upper end portion (21) and a lower cylinder (22), one end of the lower cylinder (22) is fixedly connected to the upper end portion (21), and the other end extends in a direction away from the upper end portion (21); The lower support member (3) includes a lower end portion (31) and an upper cylinder (32); one end of the upper cylinder (32) is fixedly connected to the lower end portion (31), and the other end extends in a direction away from the lower end portion (31); The lower cylinder (22) and the upper cylinder (32) are sleeved and arranged so as to be relatively movable; A long strip through hole (23) is formed in the lower cylinder (22), and a limit post (33) is arranged on the upper cylinder (32); alternatively, a limit post (33) is arranged on the lower cylinder (22), and a long strip through hole (23) is formed in the upper cylinder (32); The limit post (33) is arranged through the long strip through hole (23).

6. The vulcanization equipment according to claim 3, characterized in that: The base (5) has a bottom plate (50), and the connecting part (51) is arranged on the bottom plate (50). When the connecting part (51) is fixedly connected to the lower support (3), the bottom surface (12) is squeezed and fixed between the lower support (3) and the bottom plate (50); A second through hole (52) is formed in the bottom plate (50); the second through hole (52) is opposite to the cavity of the connecting part (51), and the aperture is smaller than the aperture of the cavity of the connecting part (51); It further includes: A sealing washer (56), sleeved on the part of the air needle (6) penetrating into the inner cavity of the connecting part (51); A sealing nut (57), threadedly connected to the inner wall of the connecting part (51), for squeezing the sealing washer (56) to achieve a sealed connection.

7. The vulcanizing device according to claim 6, characterized in that: An installation cavity (102) is arranged in the middle of the lower mold cavity (101), a connecting cavity (105) is arranged in the middle of the installation cavity (102), a ventilation hole (103) is arranged in the middle of the connecting cavity (105), and the air needle (6) is installed at the position of the ventilation hole (103); At one end of the bottom plate (50) far from the connecting part (51), a connecting sleeve (55) is fixedly arranged. The connecting sleeve (55) has an external thread, and the outer wall of the connecting sleeve (55) is screwed and fixed to the inner wall of the connecting cavity (105).

8. The vulcanization equipment according to claim 1, characterized in that: The lower mold (100) is movably installed on the machine base (601), and has a working position moved to the machine base (601) and facing the upper mold (200), and a loading position moved to one side of the machine base (601) and not facing the upper mold (200).

9. The vulcanization device according to claim 8, characterized in that: It further includes a receiving frame (801), and a plurality of receiving columns (802) are arranged on the receiving frame (801) for receiving the product after demolding; The receiving frame (801) is movably installed on the machine base (601), and has a receiving position moved to the machine base (601) and directly below the position after the left mold (300) and the right mold (400) are closed, and a discharging position moved to one side of the machine base (601).

10. The vulcanization device according to claim 9, characterized in that: The lower mold (100) and the receiving frame (801) are connected in series through a movable mechanism, and the movable mechanism drives the lower mold (100) and the receiving frame (801) to move back and forth; The movable mechanism includes: Sliding rails (901), a pair of which are arranged oppositely, one end is fixed on the machine base (601), and the other end extends towards the side away from the machine base (601); the receiving frame (801) can slide back and forth along the sliding rails (901); There are a plurality of supporting wheels (902) evenly mounted on the side surfaces of the two slide rails (901) that are close to each other; A slide plate (903) is used for fixedly supporting the lower mold (100) and is capable of sliding back and forth above the machine base (601) and the supporting wheel (902); There are at least two fixed pulleys, which are respectively arranged at both ends of the slide rail (901); The pulling rope is in a ring shape, passes through the two fixed pulleys, and is fixedly connected to the slide plate (903) and the receiving frame (801) respectively; The third driving device is used to drive the slide plate (903) to move back and forth, thereby driving the receiving frame (801) to move back and forth.

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