Mold clamping force detection device of tire forming vulcanizer

Abstract

The utility model relates to the technical field of mold clamping force detection of tire forming vulcanizers, in particular to a mold clamping force detection device of a tire forming vulcanizer, which is characterized in that a movable grid plate is fixedly connected with a force measuring rod, a fixed grid plate is fixedly connected to a shell, and the force measuring rod is stably connected to the shell in a sliding manner through a first positioning sleeve and a second positioning sleeve; when the force measuring rod is stressed to slide, through relative movement of the movable grid plate and the fixed grid plate, signals of the capacitive sensor are converted through the digital circuit module and displayed in real time through the display device, so that the numerical value of the mold clamping force is read more conveniently, and the detection accuracy of the mold clamping force is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold clamping force detection of tire shaping vulcanizing machines, in particular to a mold clamping force detection device for tire shaping vulcanizing machines. Background Art

[0002] The clamping force is an important parameter in the design and operation of the tire shaping vulcanizer. When vulcanizing tires of different specifications, the manufacturer will adjust the corresponding clamping force according to the process. If the clamping force is adjusted too small, the gap between the two models will be greater than zero, and the rubber edge will be lost during the tire vulcanization process, resulting in unqualified products. If the clamping force is adjusted too large, the stress and deformation of the machine will become worse, the residual clamping force between the models will be large, the residual deformation will be large, and the power consumption will increase. Therefore, it is necessary to select the appropriate clamping force when vulcanizing tires of different specifications.

[0003] The traditional mechanical clamping force measuring mechanism uses a tonnage gauge to read the displacement value. It is modified with a dial gauge to measure the change in the stretch of the connecting rod. The displacement value measured by the dial gauge is converted into a force value according to Hooke's law. After multiplying the coefficient according to the number of models, the value is calibrated on the dial of the dial gauge to display the clamping force value. The mechanical clamping force measuring mechanism is generally arranged on the connecting rods of the moving parts on the left and right sides of the machine. Since the connecting rods of the machine are farther than the operating platform and the tonnage gauge is small, it is not easy to read the clamping force value; in addition, the graduation value of the tonnage gauge is between 10KN and 200KN, and the accuracy is relatively low. And a tonnage gauge of one specification can generally only be used for one model. In addition, in order to improve the quality of tire vulcanization, more and more manufacturers have begun to study the relationship between the dynamic change of clamping force and the vulcanization quality during the vulcanization process. For the traditional mechanical clamping force measuring mechanism, it is difficult to record and analyze the dynamic change of clamping force through manual reading. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a clamping force detection device for a tire shaping vulcanizer, so as to make it more convenient to read the clamping force value and improve the accuracy of clamping force detection.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The clamping force detection device of the tire shaping vulcanizing machine includes:

[0007] A shell, the shell is in the shape of a circular cylinder, the shell is respectively provided with a first connecting hole and a second connecting hole, the axes of the first connecting hole and the second connecting hole coincide, and the axis of the first connecting hole is perpendicular to and intersects with the axis of the shell;

[0008] A first positioning sleeve, wherein the first positioning sleeve is coaxially sleeved in the first connecting hole;

[0009] A second positioning sleeve, wherein the second positioning sleeve is coaxially sleeved on the second connecting hole;

[0010] A force measuring rod, wherein the force measuring rod is slidably connected in the first positioning sleeve and the second positioning sleeve;

[0011] A capacitive grid sensor, the capacitive grid sensor comprising a fixed grid plate and a moving grid plate; the fixed grid plate is fixedly connected to a housing, the fixed grid plate is located on the inner side of the housing; the moving grid plate is fixedly connected to a force measuring rod, the moving grid plate and the fixed grid plate are slidably matched;

[0012] A digital circuit module, the digital circuit module is electrically connected to the capacitive sensor;

[0013] A display device is electrically connected to the digital circuit module.

[0014] Furthermore, the above-mentioned tire shaping and vulcanizing machine mold force detection device structure also includes a spring, one end of which is connected to the middle of the force measuring rod through a connecting piece, and the other end is connected to the shell, and the axial direction of the spring is parallel to the axial direction of the force measuring rod.

[0015] Furthermore, in the structure of the above-mentioned tire shaping vulcanizer mold force detection device, an arc groove is provided at the lower end of the force measuring rod, a steel ball is movably connected to the arc groove, an external thread is provided on the outer side of the lower end of the force measuring rod, and a nut sleeve is also included, the nut sleeve is connected to the external thread at the lower end of the force measuring rod, and the nut sleeve is covered on the side of the steel ball.

[0016] Furthermore, in the structure of the clamping force detection device for the tire shaping and vulcanizing machine, a convex edge is provided at the upper end of the force measuring rod.

[0017] Furthermore, in the structure of the above-mentioned tire shaping and vulcanizing machine mold force detection device, the side of the force measuring rod is connected to an anti-rotation rod, the shell is provided with a limiting slot, the direction of the limiting slot is in the same plane as the axis of the force measuring rod, and the end of the anti-rotation rod is slidably connected to the limiting slot.

[0018] Furthermore, in the above-mentioned tire shaping and vulcanizing machine mold force detection device structure, the display device is a liquid crystal display screen.

[0019] Furthermore, in the structure of the clamping force detection device for the tire shaping and vulcanizing machine, a data transmission interface is provided on the side of the shell, the data transmission interface is electrically connected to the digital circuit module, and the data transmission interface is used to connect to the industrial control panel of the electric control cabinet.

[0020] The beneficial effect of the utility model is that: since the moving grid plate is fixedly connected to the force measuring rod, the fixed grid plate is fixedly connected to the shell, and the force measuring rod is stably slidably connected to the shell through the first positioning sleeve and the second positioning sleeve, when the force measuring rod is subjected to force and slides, the signal of the capacitive grid sensor is converted through the relative movement of the moving grid plate and the fixed grid plate through the digital circuit module, and displayed in real time through the display device, making it more convenient to read the clamping force value and improving the accuracy of clamping force detection.

[0021] Furthermore, the force measuring rod is connected to the housing through a spring to prevent shaking when reading data and ensure the stability of the data.

[0022] Furthermore, by designing an anti-rotation rod structure, the force measuring rod is prevented from rotating during the sliding process of the first positioning sleeve and the second positioning sleeve, thereby ensuring that the moving grid plate cannot rotate to affect the displacement sensing.

[0023] Furthermore, the display device is a liquid crystal display screen, which displays the value of the mold clamping force in real time, and the mode conversion for switching between different specifications of mold clamping force can be achieved through the buttons on the panel.

[0024] Furthermore, the clamping force value is transmitted to the industrial control screen of the electric control cabinet through the data transmission connector of the shell, realizing real-time display, recording, early warning and alarm functions of the clamping force, and even shutdown, to ensure the safety of equipment and personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the internal structure of a mold clamping force detection device for a tire shaping vulcanizer according to a specific embodiment of the utility model;

[0026] Figure 2 This is a front view of a mold clamping force detection device for a tire shaping vulcanizer according to a specific embodiment of the utility model;

[0027] Figure 3 It is a left view of a mold clamping force detection device for a tire shaping vulcanizing machine according to a specific embodiment of the utility model;

[0028] Description of labels:

[0029] 1. Housing; 11. First connection hole; 12. Second connection hole; 13. Data transmission interface;

[0030] 2. The first positioning sleeve;

[0031] 3. The second positioning sleeve;

[0032] 4. force measuring rod; 41. convex edge;

[0033] 51. Fixed grid plate; 52. Moving grid plate;

[0034] 6. Spring;

[0035] 7. Steel balls;

[0036] 8. Nut sleeve;

[0037] 9. Anti-rotation rod;

[0038] 10. Display device. DETAILED DESCRIPTION

[0039] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in conjunction with the implementation modes and the accompanying drawings.

[0040] Please refer to Figures 1 to 3 The specific implementation of the utility model relates to a mold force detection device for a tire shaping and vulcanizing machine, comprising:

[0041] A housing 1, wherein the housing 1 is in the shape of a circular cylinder, and is provided with a first connecting hole 11 and a second connecting hole 12, respectively. The axes of the first connecting hole 11 and the second connecting hole 12 coincide with each other, and the axis of the first connecting hole 11 is perpendicular to and intersects with the axis of the housing 1;

[0042] A first positioning sleeve 2, wherein the first positioning sleeve 2 is coaxially sleeved in the first connecting hole 11;

[0043] A second positioning sleeve 3, wherein the second positioning sleeve 3 is coaxially sleeved in the second connecting hole 12;

[0044] A force measuring rod 4, wherein the force measuring rod 4 is slidably connected to the first positioning sleeve 2 and the second positioning sleeve 3;

[0045] A capacitive grid sensor, the capacitive grid sensor comprises a fixed grid plate 51 and a moving grid plate 52; the fixed grid plate 51 is fixedly connected to the housing 1, and the fixed grid plate 51 is located on the inner side of the housing 1; the moving grid plate 52 is fixedly connected to the force measuring rod 4, and the moving grid plate 52 and the fixed grid plate 51 are slidably matched;

[0046] A digital circuit module, the digital circuit module is electrically connected to the capacitive sensor;

[0047] The display device 10 is electrically connected to the digital circuit module.

[0048] In the above embodiment, since the dynamic grid plate 52 is fixedly connected to the force measuring rod 4, the fixed grid plate 51 is fixedly connected to the housing 1, and the force measuring rod 4 is stably slidably connected to the housing 1 through the first positioning sleeve 2 and the second positioning sleeve 3, when the force measuring rod 4 is subjected to force and slides, the signal of the capacitive grid sensor is converted through the relative movement of the dynamic grid plate 52 and the fixed grid plate 51 through the digital circuit module, and is displayed in real time through the display device 10, making it easier to read the clamping force value and improving the accuracy of the clamping force detection. The clamping force division value is smaller, and a more accurate clamping force can be obtained, and the clamping force value accuracy can be read to 0.1KN.

[0049] In the above implementation manner, one digital clamping force indicator can match tonnage meters of multiple specifications and models, and can be used for vulcanizers of multiple specifications and models.

[0050] As a preferred embodiment, a spring 6 is further included, one end of which is connected to the middle of the force measuring rod 4 through a connecting piece, and the other end is connected to the housing 1 , and the axial direction of the spring 6 is parallel to the axial direction of the force measuring rod 4 .

[0051] In the above embodiments, the force measuring rod 4 is connected to the housing 1 via the spring 6 to prevent shaking during data reading and ensure data stability.

[0052] As a preferred embodiment, an arc groove is provided at the lower end of the force measuring rod 4, and a steel ball 7 is movably connected to the arc groove. An external thread is provided on the outer side of the lower end of the force measuring rod 4, and also includes a nut sleeve 8. The nut sleeve 8 is connected to the external thread at the lower end of the force measuring rod 4, and the nut sleeve 8 is covered on the side of the steel ball 7.

[0053] As a preferred embodiment, a convex edge 41 is provided at the upper end of the force measuring rod 4 .

[0054] As a preferred embodiment, the side of the force measuring rod 4 is connected to an anti-rotation rod 9, the shell 1 is provided with a limiting slot, the direction of the limiting slot is in the same plane as the axis of the force measuring rod 4, and the end of the anti-rotation rod 9 is slidably connected to the limiting slot.

[0055] As a preferred embodiment, the display device 10 is a liquid crystal display screen, which displays the clamping force value in real time, and the mode conversion for switching between different specifications of clamping force can be achieved through the buttons on the panel.

[0056] As a preferred embodiment, a data transmission interface 13 is provided on the side of the housing 1, and the data transmission interface 13 is electrically connected to the digital circuit module. The data transmission interface 13 is used to connect to the industrial control panel of the electric control cabinet.

[0057] In the above implementation, the clamping force value is transmitted to the industrial control screen of the electric control cabinet through the data transmission connector, realizing the real-time display, recording, early warning and alarm functions of the clamping force, and even shutdown, which has ensured the safety of equipment and personnel. Dynamic recording of the clamping force change curve provides research conditions for studying the clamping force change and vulcanization quality during vulcanization.

[0058] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in the relevant technical field, are also included in the patent protection scope of the present invention.

Claims

1. A device for detecting the clamping force of a tire shaping and vulcanizing machine, characterized in that: include: A shell, the shell is in the shape of a circular cylinder, the shell is respectively provided with a first connecting hole and a second connecting hole, the axes of the first connecting hole and the second connecting hole coincide, and the axis of the first connecting hole is perpendicular to and intersects with the axis of the shell; A first positioning sleeve, wherein the first positioning sleeve is coaxially sleeved in the first connecting hole; A second positioning sleeve, wherein the second positioning sleeve is coaxially sleeved on the second connecting hole; A force measuring rod, wherein the force measuring rod is slidably connected in the first positioning sleeve and the second positioning sleeve; A capacitive grid sensor, the capacitive grid sensor comprising a fixed grid plate and a moving grid plate; the fixed grid plate is fixedly connected to a housing, the fixed grid plate is located on the inner side of the housing; the moving grid plate is fixedly connected to a force measuring rod, the moving grid plate and the fixed grid plate are slidably matched; A digital circuit module, the digital circuit module is electrically connected to the capacitive sensor; A display device is electrically connected to the digital circuit module.

2. The device for detecting mold clamping force of a tire shaping and vulcanizing machine according to claim 1, characterized in that: It also includes a spring, one end of which is connected to the middle part of the force measuring rod through a connecting piece, and the other end is connected to the shell, and the axial direction of the spring is parallel to the axial direction of the force measuring rod.

3. The device for detecting mold clamping force of a tire shaping and vulcanizing machine according to claim 1, characterized in that: An arc groove is provided at the lower end of the force measuring rod, and a steel ball is movably connected to the arc groove. An external thread is provided on the outer side of the lower end of the force measuring rod, and a nut sleeve is also included. The nut sleeve is connected to the external thread at the lower end of the force measuring rod, and the nut sleeve covers the side of the steel ball.

4. The clamping force detection device for a tire shaping and vulcanizing machine according to claim 1, characterized in that: The upper end of the force measuring rod is provided with a convex edge.

5. The device for detecting mold clamping force of a tire shaping and vulcanizing machine according to claim 1, characterized in that: The side of the force measuring rod is connected with an anti-rotation rod, the shell is provided with a limiting slot, the direction of the limiting slot and the axis of the force measuring rod are located in the same plane, and the end of the anti-rotation rod is slidably connected to the limiting slot.

6. The device for detecting mold clamping force of a tire shaping and vulcanizing machine according to claim 1, characterized in that: The display device is a liquid crystal display screen.

7. The device for detecting mold clamping force of a tire shaping and vulcanizing machine according to claim 1, characterized in that: A data transmission interface is provided on the side of the shell, and the data transmission interface is electrically connected to the digital circuit module. The data transmission interface is used to connect to the industrial control screen of the electric control cabinet.

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