A detecting tool for the position accuracy of a vulcanizer hot plate and a detecting and adjusting method

Abstract

The present invention discloses a detecting tooling and a detecting and adjusting method for the position accuracy of a hot plate of a vulcanizer, including a parallelism detecting device and a coaxiality detecting device; the parallelism detecting device includes an annular middle sleeve, a weighing sensor and a display instrument; an installation hole is formed in the upper surface of the annular middle sleeve, part of the weighing sensor is installed in the installation hole, and the weighing sensor is connected with the display instrument through a connecting wire; the coaxiality detecting device includes a meter base, a first magnetic meter and a second magnetic meter; the meter base includes a circular ring and a sector body arranged on the upper surface of the circular ring; the first magnetic meter is installed on the upper surface of the circular ring, and the second magnetic meter is installed at the upper end of the sector body. The present invention can quickly detect and adjust the parallelism and coaxiality of the upper and lower hot plates of the vulcanizer, reduce the defects of flash dislocation in the first inspection products of the flexible die, inhibit the accuracy deterioration caused by the adhesion of the aluminum pattern block and the mating surface of the side plate, improve the dynamic average performance of the product, have no safety operation risk, and have the value of industry promotion.

Description

Technical Field

[0001] The present invention relates to the technical field of the position accuracy detection of the hot plates of a vulcanizer, and particularly relates to a position accuracy detection tooling and a detection and adjustment method for the hot plates of a vulcanizer. Background Art

[0002] In the tire manufacturing process, a pre-formed embryo is placed into a mold for heating and pressurization processes to expand a bladder within the mold and tightly adhere to the inner surface of the embryo for vulcanization; during vulcanization, a hot plate is used to heat the mold to ensure the stability of the mold temperature, thereby ensuring the stability of vulcanization.

[0003] During the long-term production process of a vulcanizer, the position accuracy (including the accuracy of parallelism and coaxiality) of the upper and lower hot plates will change. Once the position accuracy of the hot plates changes, it cannot meet the actual conditions of the installation process of the split mold. For example, the deterioration of the parallelism of the hot plates of the vulcanizer will cause misalignment or gaps at each parting part of the split mold, while the deterioration of the coaxiality of the hot plates of the vulcanizer will cause aluminum adhesion on the side plates, and the diameter of the cooperation between the pattern blocks and the side plates will irregularly increase and gaps will appear. Therefore, it is necessary to regularly detect and adjust the position accuracy of the hot plates. Among them, for the detection of the parallelism of the upper and lower hot plates, there are two traditional detection methods:

[0004] (1) Mechanical method for measuring the parallelism of the upper and lower hot plates of a vulcanizer

[0005] ① Between the lower plane 3 of the upper hot plate and the upper plane 2 of the lower hot plate, evenly place 3 equal-height cylinders along the circumferential direction of the lower hot plate, and then close the mold to the bottom dead center position; adjust and control the left and right closing forces according to 300 KN.

[0006] ② Use an internal micrometer 6 or a dial indicator to measure the distance between the lower plane 3 of the upper hot plate and the upper plane 2 of the lower hot plate. The difference between the maximum value and the minimum value is the parallelism error of this item. Specifically, as Figure 1 shown, Figure 1 in which 1 represents the base, 2 represents the upper plane of the lower hot plate, 3 represents the lower plane of the upper hot plate, 4 represents the connecting rod, 5 represents the crossbeam, 6 represents the equal-height cylinder, and 7 represents the internal micrometer.

[0007] (2) Hydraulic method for measuring the parallelism of the upper and lower hot plates of a vulcanizer

[0008] ① Between the lower plane 1 of the upper hot plate and the upper plane 2 of the lower hot plate, evenly place 3 equal-height cylinders along the circumferential direction of the lower hot plate, adjust the left and right closing forces according to 300 KN, and then close the mold.

[0009] ② Use a dial indicator 3 or an internal micrometer to measure the distance between the lower plane 1 of the upper hot plate and the upper plane 2 of the lower hot plate. The difference between the maximum and minimum readings is the parallelism error of this item. Specifically, as Figure 2As shown in the figure, 1 represents the upper hot plate, 2 represents the lower hot plate, 3 represents the dial indicator, 4 represents the heat insulation layer, 5 represents the central mechanism, and 6 represents the equal-height cylinder.

[0010] After the parallelism detection and adjustment using the above first or second detection method, if the parallelism of the upper and lower hot plates of the vulcanizer exceeds the tolerance range, it cannot effectively guide the precise adjustment of the closing force of the flexible mold. Only the method of pressing lead and adding pads on the flexible mold machine can be used to make up for the defect that the closing forces at the four positions of the front, rear, left, and right of the plane on the middle sleeve of the flexible mold exerted by the vulcanizer are not equal as much as possible. The adjustment efficiency and quality are both low.

[0011] In addition, if the parallelism of the upper and lower hot plates of the vulcanizer exceeds the standard seriously and it is not convenient to repair on the machine, the detection results of the above first or second detection method may not be able to ensure that the closing forces at the four positions of the front, rear, left, and right of the plane on the middle sleeve of the flexible mold exerted by the vulcanizer are consistent by using the method of pressing lead and adding pads on the flexible mold machine.

[0012] For the detection of the coaxiality of the upper and lower hot plates, the traditional detection method is as follows:

[0013] ① Control the upper and lower hot plates of the vulcanizer at a certain height as shown in the figure to not hinder the project detection. Figure 3 As shown in the figure, control the upper and lower hot plates of the vulcanizer at a certain height so as not to obstruct the project detection.

[0014] ② Install the measuring seat 3 on the journal of the ring seat of the central mechanism 4, and the magnetic base with the dial indicator is adsorbed on the measuring seat, so that the measuring head of the dial indicator touches the outer circle of the water cylinder (or oil cylinder) shaft. Rotate the measuring seat for one week, and the difference between the maximum reading and the minimum reading on the dial indicator is the coaxiality error of this project. Among them, 1 represents the water cylinder (or oil cylinder) shaft, 2 represents the dial indicator, 3 represents the magnetic base, and 4 represents the central mechanism.

[0015] ③ As shown in the figure, adsorb the magnetic base on the water cylinder (or oil cylinder) shaft again, and the dial indicator rotates along the inner diameter surface of the center of the upper hot plate for one week, and record the maximum and minimum differences. Among them, 1 represents the water cylinder (or oil cylinder) shaft, 2 represents the dial indicator, and 3 represents the upper hot plate. Figure 4 As shown in the figure, adsorb the magnetic base on the water cylinder (or oil cylinder) shaft again, and the dial indicator rotates along the inner diameter surface of the center of the upper hot plate for one week, and record the maximum and minimum differences. Among them, 1 represents the water cylinder (or oil cylinder) shaft, 2 represents the dial indicator, and 3 represents the upper hot plate.

[0016] ④ The coaxiality of the upper and lower hot plates = the coaxiality of the central mechanism to the water cylinder (or oil cylinder) shaft + the coaxiality of the water cylinder (oil cylinder) shaft and the upper hot plate.

[0017] However, after the coaxiality detection using the above detection method, the following limitations exist:

[0018] 1. Using the indirect measurement method, the cumulative error is large.

[0019] 2. The dial indicator is moved and adjusted multiple times, and the efficiency and quality are low and not scientific.

[0020] Therefore, a new detection method for the position accuracy of the hot plate needs to be proposed to meet the requirements of the process conditions. Summary of the Invention

[0021] The present invention provides a detection tooling and a detection and adjustment method for the position accuracy of the hot plate of a vulcanizer to solve the deficiencies of the prior art.

[0022] To achieve the above object, the present invention provides the following technical solutions:

[0023] In a first aspect, an embodiment of the present invention provides a detection tooling for the position accuracy of the hot plate of a vulcanizer, including a parallelism detection device and a coaxiality detection device; wherein,

[0024] The parallelism detection device includes an annular middle sleeve, a load cell, and a display instrument;

[0025] The upper surface of the annular middle sleeve is provided with mounting holes, a part of the load cell is installed in the mounting holes, and the load cell is connected to the display instrument through a connecting wire;

[0026] The coaxiality detection device includes a gauge block, a first magnetic gauge, and a second magnetic gauge;

[0027] The gauge block includes a circular ring and a sector body provided on the upper surface of the circular ring;

[0028] The first magnetic gauge is installed on the upper surface of the circular ring, and the second magnetic gauge is installed at the upper end of the sector body.

[0029] Further, in the detection tooling for the position accuracy of the hot plate of the vulcanizer, the parallelism detection device further includes a power supply module;

[0030] The power supply module is respectively connected to the load cell and the display instrument through connecting wires to supply power to the load cell and the display instrument.

[0031] Further, in the detection tooling for the position accuracy of the hot plate of the vulcanizer, there are four mounting holes, the four mounting holes are evenly spaced, and one load cell is installed in each mounting hole.

[0032] Further, in the detection tooling for the position accuracy of the hot plate of the vulcanizer, the parallelism between the upper surface and the lower surface of the annular middle sleeve is less than or equal to 0.05 mm.

[0033] Further, in the detection tooling for the position accuracy of the hot plate of the vulcanizer, the depth error of the mounting holes is less than or equal to 0.05 mm.

[0034] Further, in the detection tooling for the position accuracy of the hot plate of the vulcanizer, the specification of the load cell is 0 - 100 tons.

[0035] Second aspect, an embodiment of the present invention provides a method for detecting and adjusting the parallelism of the hot plate of a vulcanizer, which is implemented by using the parallelism detection device described in the first aspect. The method includes:

[0036] Place the two parallelism detection devices on the left and right mold mounting positions on the machine table respectively, and adjust the coaxiality with the central mechanism to be less than or equal to 1 mm;

[0037] Measure the height values between the upper planes of the respective load cells and the upper planes of the corresponding annular middle sleeves, and adjust the flatness error of the upper end planes of the respective load cells to be less than or equal to 0.05 mm by adding copper shims;

[0038] Adjust the large plate nut, and close the mold until the upper hot plate of the vulcanizer contacts the upper plane of the load cell;

[0039] Observe and record the display readings of the four load cells on each of the two parallelism detection devices through the display instrument;

[0040] Loosen the four connecting bolts of the upper hot plate, the heat insulation plate and the upper tray by 3 - 5 mm, and add shims at the corresponding positions of the heat insulation plate and the upper tray according to the minimum value data displayed on the display instrument until the maximum pressure and the minimum pressure difference at the four positions corresponding to the four load cells on each parallelism detection device are less than or equal to 10 KN;

[0041] Tighten the four connecting bolts of the upper hot plate, the heat insulation plate and the upper tray, complete the adjustment, remove the two parallelism detection devices, and prepare for the coaxiality detection of the upper and lower hot plates.

[0042] Third aspect, an embodiment of the present invention provides a method for detecting and adjusting the coaxiality of the hot plate of a vulcanizer, which is implemented by using the coaxiality detection device described in the first aspect. The method includes:

[0043] Put the coaxiality detection device on the central mechanism ring seat, and the coaxiality detection device can rotate circumferentially along the central mechanism ring seat;

[0044] Close the mold to an appropriate height, adjust the contact head of the first magnetic gauge to be able to contact the outer circle surface of the positioning ring of the lower hot plate of the vulcanizer, and zero it;

[0045] Adjust the contact head of the second magnetic gauge to contact the inner circle surface for measurement of the upper hot plate of the vulcanizer, and zero it;

[0046] Rotate the coaxiality detection device one week, and record the difference V1 between the maximum value and the minimum value of the first magnetic gauge and the difference V2 between the maximum value and the minimum value of the second magnetic gauge respectively;

[0047] The coaxiality deviation between the upper hot plate and the lower hot plate is calculated by the following formula:

[0048] |V1 - V2|;

[0049] Adjust the coaxiality deviation between the upper hot plate and the lower hot plate.

[0050] A vulcanizer hot plate position accuracy detection tooling and detection and adjustment method provided by an embodiment of the present invention can quickly detect and adjust the parallelism and coaxiality of the upper and lower hot plates of a vulcanizer, reduce the defects of flash misalignment in the first inspection products of the flexible die, inhibit the deterioration of the accuracy formed by the bonding of the aluminum pattern block and the side plate mating surface, improve the dynamic balance performance of the product, have no safety operation risks, and have the value of industry promotion. Description of the Drawings

[0051] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0052] Figure 1 It is a schematic structural diagram of a parallelism detection tool for the upper and lower hot plates of a mechanical vulcanizer in the prior art;

[0053] Figure 2 It is a schematic structural diagram of a parallelism detection tool for the upper and lower hot plates of a hydraulic vulcanizer in the prior art;

[0054] Figure 3 It is a schematic structural diagram of a coaxiality detection tool for the upper and lower hot plates of a vulcanizer in the prior art;

[0055] Figure 4 It is a schematic structural diagram of a coaxiality detection tool for the upper and lower hot plates of a vulcanizer in the prior art;

[0056] Figure 5 It is a schematic structural diagram of a parallelism detection device provided by an embodiment of the present invention;

[0057] Figure 6 It is a schematic structural diagram of a coaxiality detection device provided by an embodiment of the present invention;

[0058] Figure 7 It is a schematic structural diagram of a surface seat in an embodiment of the present invention.

[0059] Reference Signs:

[0060] Annular middle sleeve 11, load cell 12, display instrument 13;

[0061] Table base 21, first magnetic gauge 22, second magnetic gauge 23;

[0062] Ring 211, sector 212. Detailed implementation

[0063] To make the objectives, features, and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0064] In the description of the present invention, it should be understood that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component.

[0065] In addition, terms such as "long", "short", "inner", "outer", etc. indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have this specific orientation or be constructed and operated in this specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0066] The technical solutions of the present invention will be further described below with reference to the accompanying drawings and through specific implementation manners.

[0067] Embodiment 1

[0068] Please refer to Figures 5 to 7 , the embodiment of the present invention provides a detection tool for the position accuracy of the hot plate of a vulcanizer, including a parallelism detection device and a coaxiality detection device; wherein,

[0069] The parallelism detection device includes an annular middle sleeve 11, a load cell 12, and a display instrument 13;

[0070] The upper surface of the annular middle sleeve 11 is provided with a mounting hole, a part of the load cell 12 is installed in the mounting hole, and the load cell 12 is connected to the display instrument 13 through a connecting wire;

[0071] The coaxiality detection device includes a table base 21, a first magnetic gauge 22, and a second magnetic gauge 23;

[0072] The table base 21 includes a ring 211 and a sector 212 disposed on the upper surface of the ring 211;

[0073] The first magnetic meter 22 is installed on the upper surface of the ring 211, and the second magnetic meter 23 is installed at the upper end of the sector 212.

[0074] Preferably, the parallelism detection device further includes a power supply module;

[0075] The power supply module is respectively connected to the weighing sensor 12 and the display instrument 13 through connecting wires to supply power to the weighing sensor 12 and the display instrument 13.

[0076] Preferably, there are four installation holes, the four installation holes are evenly spaced, and each installation hole is provided with a weighing sensor 12.

[0077] Preferably, the parallelism between the upper surface and the lower surface of the annular middle sleeve 11 is less than or equal to 0.05 mm.

[0078] Preferably, the depth error of the installation hole is less than or equal to 0.05 mm.

[0079] Preferably, the specification of the weighing sensor 12 is 0-100 tons.

[0080] A vulcanizer hot plate position accuracy detection tooling provided by an embodiment of the present invention can quickly detect and adjust the parallelism and coaxiality of the upper and lower hot plates of the vulcanizer, reduce the defects of flash dislocation in the first inspection products of the flexible die, inhibit the accuracy deterioration caused by the bonding of the aluminum pattern block and the side plate mating surface, improve the dynamic balance performance of the product, have no safety operation risks, and have industry promotion value.

[0081] Embodiment Two

[0082] An embodiment of the present invention provides a method for detecting and adjusting the parallelism of the hot plate of a vulcanizer, which is realized by using the parallelism detection device described in Embodiment One. The method includes:

[0083] Place the two parallelism detection devices at the left and right mold installation positions on the machine table respectively, and adjust the coaxiality with the central mechanism to be less than or equal to 1 mm;

[0084] Measure the height values between the upper planes of the respective weighing sensors and the upper planes of the corresponding annular middle sleeves respectively, and adjust the upper plane error of each weighing sensor to be less than or equal to 0.05 mm by adding copper pads;

[0085] Adjust the large plate nut, close the mold until the upper hot plate of the vulcanizer contacts the upper plane of the weighing sensor, and control the left and right closing forces at 600 KN;

[0086] Observe and record the display readings of the four load cells on each of the two parallelism detection devices through the display instrument respectively;

[0087] Loosen the four connecting bolts of the upper hot plate, heat insulation plate and upper tray by 3 - 5 mm, and add gaskets at the corresponding positions of the heat insulation plate and the upper tray according to the minimum value data displayed on the display instrument. It is advisable to start with a gasket thickness of 0.2 mm and increase it gradually until the maximum pressure - minimum pressure difference at the four positions corresponding to the four load cells on each parallelism detection device is less than or equal to 10 KN;

[0088] Tighten the four connecting bolts of the upper hot plate, heat insulation plate and upper tray. After the adjustment is completed, remove the two parallelism detection devices and prepare for the coaxiality detection of the upper and lower hot plates.

[0089] A method for detecting and adjusting the parallelism of the hot plates of a vulcanizer provided by an embodiment of the present invention can quickly detect and adjust the parallelism of the upper and lower hot plates of the vulcanizer, reduce the defects of flash dislocation in the first - inspection products of the flexible die, improve the dynamic average performance of the products, have no safety operation risks, and have the value of industry promotion.

[0090] Embodiment Three

[0091] An embodiment of the present invention provides a method for detecting and adjusting the coaxiality of the hot plates of a vulcanizer, which is realized by using the coaxiality detection device described in Embodiment One. The method includes:

[0092] Put the coaxiality detection device on the center mechanism ring seat (ensure that the gap is less than or equal to 0.03 mm), and the coaxiality detection device can rotate circumferentially along the center mechanism ring seat;

[0093] Close the mold to an appropriate height, adjust the contact head of the first magnetic gauge to be able to contact the outer - circle surface of the positioning ring of the lower hot plate of the vulcanizer, and zero it;

[0094] Adjust the contact head of the second magnetic gauge to contact the inner - circle surface for measurement of the upper hot plate of the vulcanizer, and zero it;

[0095] Rotate the coaxiality detection device one week, and record the difference V1 between the maximum value and the minimum value of the first magnetic gauge and the difference V2 between the maximum value and the minimum value of the second magnetic gauge respectively;

[0096] Obtain the coaxiality deviation between the upper hot plate and the lower hot plate through the following formula calculation:

[0097] |V1 - V2|;

[0098] Adjust the coaxiality deviation between the upper hot plate and the lower hot plate (the same as the traditional method, so it will not be elaborated here).

[0099] Remove the tooling, reinstall the mold, and adjust the clamping force according to the standard;

[0100] Follow up the first inspection and deliver for production.

[0101] A method for detecting and adjusting the coaxiality of the hot plates of a vulcanizer provided by an embodiment of the present invention can quickly detect and adjust the coaxiality of the upper and lower hot plates of the vulcanizer, inhibit the deterioration of the accuracy formed by the bonding of the aluminum pattern block and the side plate mating surface, improve the dynamic balance performance of the product, have no safety operation risk, and have the value of industry promotion.

[0102] Thus far, the description of the above embodiments has been provided for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosure. The individual elements or features of a particular embodiment are generally not limited by that particular embodiment, but, where applicable, can be interchanged and used in selected embodiments even if not specifically shown or described. In many respects, the same elements or features can also be changed. Such variations are not considered to deviate from the disclosure, and all such modifications are intended to be included within the scope of the disclosure.

[0103] Example embodiments are provided so that this disclosure will be thorough and will fully convey the scope to those skilled in the art. To thoroughly understand the embodiments of this disclosure, numerous details are set forth, such as examples of specific parts, devices, and methods. Obviously, for those skilled in the art, specific details are not required, and the example embodiments can be implemented in many different forms, and neither should be construed as limiting the scope of the disclosure. In some example embodiments, well-known processes, well-known device structures, and well-known technologies are not described in detail.

[0104] Here, specific technical terms are used only for the purpose of describing particular example embodiments and are not intended for a limiting purpose. Unless the context clearly dictates otherwise, the singular forms "a" and "the" used herein can also be meant to include the plural forms. The terms "comprising" and "having" are inclusive and thus specify the presence of the stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or combinations thereof. Unless explicitly indicated the order of execution, the method steps, processes, and operations described herein are not to be construed as necessarily requiring to be executed in the particular order discussed and shown. It should also be understood that additional or alternative steps can be employed.

[0105] When an element or layer is referred to as being "on", "engaged to", "connected to", or "coupled to" another element or layer, it can be directly on, engaged to, connected to, or coupled to the other element or layer, or intervening elements or layers may be present. In contrast, when an element or layer is referred to as being "directly on", "directly engaged to", "directly connected to", or "directly coupled to" another element or layer, intervening elements or layers may not be present. Other words used to describe the relationship of elements should be interpreted in a similar manner (e.g., "between" and "directly between", "adjacent" and "directly adjacent", etc.). The term "and / or" used herein includes any and all combinations of one or more of the associated listed items. Although terms such as first, second, third, etc. may be used herein to describe various elements, components, regions, layers, and / or parts, these elements, components, regions, layers, and / or parts are not limited by these terms. These terms may only be used to distinguish one element, component, region, or part from another. Unless clearly indicated by the context, terms such as "first", "second", and other numerical terms used herein do not imply a sequence or order. Thus, a first element, component, region, layer, or part discussed below may be referred to as a second element, component, region, layer, or part without departing from the teachings of the exemplary embodiment.

[0106] Spatial relative terms, such as "inner", "outer", "beneath", "below", "lower", "above", "upper", etc., may be used herein for purposes of convenience in description to describe the relationship between one element or feature and another element or feature(s) as shown in the figures. Spatial relative terms may mean different orientations of the device in addition to the orientation depicted in the figures. For example, if the device in the figures is flipped, an element described as "beneath" or "below" another element or feature will be oriented "above" the other element or feature. Thus, the exemplary term "below" can include both an upward and a downward orientation. The device may be otherwise oriented (rotated 90 degrees or other orientations) and interpreted with the spatial relative descriptions herein.

Claims

1. A detection tool for the position accuracy of the hot plate of a vulcanizer, characterized in that It includes a parallelism detection device and a coaxiality detection device; among them, the parallelism detection device includes an annular middle sleeve, a load cell, and a display instrument; an installation hole is provided on the upper surface of the annular middle sleeve, a part of the load cell is installed in the installation hole, and the load cell is connected to the display instrument through a connecting wire; the coaxiality detection device includes a gauge base, a first magnetic gauge, and a second magnetic gauge; the gauge base includes a circular ring and a sector body provided on the upper surface of the circular ring; the first magnetic gauge is installed on the upper surface of the circular ring, and the second magnetic gauge is installed at the upper end of the sector body; there are four installation holes, the four installation holes are evenly spaced, and each installation hole is installed with a load cell; the parallelism between the upper surface and the lower surface of the annular middle sleeve is less than or equal to 0.05 mm.

2. The vulcanizer hot plate position accuracy detection tooling according to claim 1, characterized in that, The parallelism detection device further includes a power module; the power module is respectively connected to the load cell and the display instrument through connecting wires to supply power to the load cell and the display instrument.

3. The vulcanizer hot plate position accuracy detection tooling according to claim 1, characterized in that The depth error of the installation hole is less than or equal to 0.05 mm.

4. The vulcanizer hot plate position accuracy detection tooling according to claim 1, characterized in that The specification of the load cell is 0 to 100 tons.

5. A method for detecting and adjusting the parallelism of the hot plate of a vulcanizer, which is realized by using the parallelism detection device described in any one of claims 1 to 4, characterized in that, The method includes: Place the two parallelism detection devices on the left and right mold installation positions on the machine table respectively, and adjust the coaxiality with the central mechanism to be less than or equal to 1 mm; Measure the height values between the upper planes of the respective load cells and the upper planes of the corresponding annular middle sleeves respectively, and adjust the flatness error of the upper end planes of the respective load cells to be less than or equal to 0.05 mm by adding copper shims; Adjust the large plate nut and close the mold until the upper hot plate of the vulcanizer contacts the upper plane of the load cell; Observe and record the display readings of the four load cells on each of the two parallelism detection devices through the display instrument; Loosen the four connecting bolts of the upper hot plate, the heat insulation plate and the upper tray by 3 to 5 mm, and add gaskets at the corresponding positions of the heat insulation plate and the upper tray according to the minimum value data displayed on the display instrument until the maximum pressure and the minimum pressure difference at the four positions corresponding to the four load cells on each parallelism detection device are less than or equal to 10 KN; Tighten the four connecting bolts of the upper hot plate, the heat insulation plate and the upper tray, complete the adjustment, remove the two parallelism detection devices, and prepare for the coaxiality detection of the upper and lower hot plates.

6. A method for detecting and adjusting the coaxiality of the hot plate of a vulcanizer, which is realized by using the coaxiality detection device described in claim 1, characterized in that, The method includes: Put the coaxiality detection device on the central mechanism ring seat, and the coaxiality detection device can rotate circumferentially along the central mechanism ring seat; Close the mold to an appropriate height, adjust the contact head of the first magnetic gauge to be able to contact the outer circle surface of the positioning ring of the lower hot plate of the vulcanizer, and zero it; Adjust the contact head of the second magnetic gauge to contact the inner circle surface for measurement of the upper hot plate of the vulcanizer, and zero it; Rotate the coaxiality detection device one week, and record the difference V1 between the maximum value and the minimum value of the first magnetic gauge and the difference V2 between the maximum value and the minimum value of the second magnetic gauge respectively; Obtain the coaxiality deviation between the upper hot plate and the lower hot plate through the following formula calculation: |V1 - V2|; Adjust the coaxiality deviation between the upper hot plate and the lower hot plate.

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