Semi-steel tire mold with temperature measuring hole

Abstract

A semi-steel tire mold with a temperature measuring hole relates to the technical field of tires and comprises a pattern block, an upper side plate, a lower side plate, an upper steel ring and a lower steel ring, one end of the upper side plate and one end of the lower side plate are in contact connection with the pattern block, the other end of the upper side plate and one end of the lower side plate are in contact connection with the upper steel ring and the lower steel ring, and a movable block is arranged at the position, close to the lower steel ring, of the lower side plate. A temperature measuring hole is formed below the movable block, and a temperature measuring line is arranged in the temperature measuring hole; the temperature measuring hole comprises a threading hole, a communicating hole and a pay-off hole, the threading hole is formed below the movable block, one end of the communicating hole is communicated with the threading hole, and the other end of the communicating hole extends to the edge, close to the pattern block, of the lower side plate and is communicated with the pay-off hole. And compared with the temperature measuring hole formed in the steel ring which is plugged by using a plugging bolt, threads do not need to be arranged in the temperature measuring hole, so that the temperature measuring line cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, and particularly relates to a semi-steel tire mold with a temperature measuring hole. Background Art

[0002] During the manufacturing process of existing semi-steel tires, it is necessary to measure the temperature of the semi-steel tires. The purpose of tire temperature measurement is to find the correct vulcanization time of the tires to ensure that the tires are not over-vulcanized or under-vulcanized. During the vulcanization process of the green tire, due to the barrier of the mold, the temperature measuring instrument cannot be directly connected to the green tire for temperature measurement. At this time, a temperature measuring hole needs to be opened on the mold, and the temperature measuring wire connects the temperature measuring instrument and the green tire through the temperature measuring hole.

[0003] For example, the publication number is CN112847965A, and the name is "A Tire Mold with a Temperature Measuring Hole and a Temperature Measuring System and Method" discloses a temperature measuring hole structure, including a tread block, a side plate, and a steel ring. The outer side of the side plate cooperates with the tread block, and the inner side cooperates with the steel ring; a temperature measuring hole is arranged on the steel ring, and a plug bolt capable of blocking the temperature measuring hole is arranged in the temperature measuring hole. When not measuring the temperature, the temperature measuring hole is blocked with the plug bolt to protect the vulcanization bladder; a temperature measuring wire is arranged in the temperature measuring hole for accurate temperature measurement. The beneficial effects of the invention are as follows: By changing the opening position of the temperature measuring hole from the side plate in the prior art to opening the hole on the steel ring, the change of the routing path of the temperature measuring wire is realized, thereby reducing the number of mold components, reducing the mold processing difficulty and manufacturing cost, simplifying the tire vulcanization temperature measurement operation process, greatly saving the temperature measurement preparation time while ensuring the tire vulcanization quality, improving the temperature measurement accuracy, and greatly improving the work efficiency. However, there are also certain defects: Setting the temperature measuring hole on the steel ring and using a plug bolt to block the temperature measuring hole requires setting threads in the temperature measuring hole, and the threads will damage the temperature measuring wire and affect the temperature measurement result. Content of the Utility Model

[0004] Aiming at the above deficiencies of the prior art, the purpose of the utility model is to provide a semi-steel tire mold with a temperature measuring hole, which can solve the technical problem that when the temperature measuring hole is arranged on the steel ring and a plug bolt is used to block the temperature measuring hole, threads need to be arranged in the temperature measuring hole, and the threads will damage the temperature measuring wire and affect the temperature measurement result.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A semi-steel tire mold with a temperature measuring hole, including a tread block, an upper side plate, a lower side plate, an upper steel ring, and a lower steel ring. One end of the upper side plate and the lower side plate is in contact connection with the tread block, and the other end is in contact connection with the upper steel ring and the lower steel ring. A movable block is arranged at a position on the lower side plate close to the lower steel ring, a temperature measuring hole is arranged below the movable block, and a temperature measuring wire is arranged in the temperature measuring hole;

[0007] The temperature measuring hole includes a wire threading hole, a communication hole, and a wire releasing hole. The wire threading hole is provided below the movable block. One end of the communication hole is communicated with the wire threading hole, and the other end extends to the edge of the lower side plate near the pattern block and is communicated with the wire releasing hole.

[0008] Preferably, a front end reference line is provided on the lower side plate. The extension line of the front end reference line intersects with the central extension line of the temperature measuring hole, and the included angle is α, where α ≤ 45°.

[0009] Preferably, the wire threading hole is a cylindrical hole with a diameter of 10 - 12 mm, and its hole depth extends to the bottom of the lower side plate.

[0010] Preferably, the communication hole is a rectangular groove with a groove width of 14 - 16 mm and a groove depth of 10 - 12 mm. A first chamfer is provided at the connection between the communication hole and the wire threading hole, and the radius of the first chamfer is 5 - 7 mm.

[0011] Preferably, the wire releasing hole is a combination of a cuboid and a semi - cylinder. Its total length is 19 - 21 mm, the width is 14 - 16 mm, the diameter of the semi - cylinder is 14 - 16 mm. The hole depth of the wire releasing hole extends to the bottom of the lower side plate. A second chamfer is provided at the connection between the wire releasing hole and the communication hole, and the radius of the second chamfer is 4 - 6 mm.

[0012] Preferably, a third chamfer is provided at the connection between the movable block and the wire threading hole, and the radius of the third chamfer is 1 - 1.5 mm. A fourth chamfer is provided at the connection between the wire releasing hole and the lower side plate, and the radius of the fourth chamfer is 1.5 - 2 mm.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The temperature measuring hole of the present utility model is opened on the lower side plate and is blocked by a movable block. Compared with the temperature measuring hole opened on the steel ring that is blocked by a blocking bolt, there is no need to set a thread in the temperature measuring hole, and the temperature measuring wire will not be damaged.

[0015] 2. By providing chamfers at each connection, the present utility model ensures that the temperature measuring wire will not be cut by sharp corners during the temperature measurement process.

[0016] 3. By setting the included angle formed by the intersection of the extension line of the front end reference line and the central extension line of the temperature measuring hole to be less than or equal to 45°, it is convenient for the temperature measuring personnel to operate. Description of the Drawings

[0017] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the accompanying drawings required for use in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other accompanying drawings can also be obtained based on these drawings.

[0018] Figure 1 is a sectional view of the present utility model;

[0019] Figure 2 is a schematic diagram of the temperature measuring hole connection structure of the present utility model;

[0020] Figure 3 is a top view of the temperature measuring hole of the present utility model;

[0021] Figure 4 is a bottom view of the present utility model.

[0022] Explanation of reference numerals:

[0023] 1 - tread block, 2 - upper side plate, 3 - lower side plate, 4 - upper steel ring, 5 - lower steel ring, 6 - movable block, 7 - temperature measuring hole, 71 - wire passing hole, 72 - communication hole, 73 - wire releasing hole, 8 - front end reference line, 9 - chamfer one, 10 - chamfer two, 11 - chamfer three, 12 - chamfer four. Detailed implementation manners

[0024] The following will make a detailed description of the content of the present utility model by way of example in conjunction with the accompanying drawings of the specification. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Embodiment

[0025] As Figures 1 to 4 shown, the present utility model discloses a semi-steel tire mold with a temperature measuring hole, which includes a tread block 1, an upper side plate 2, a lower side plate 3, an upper steel ring 4 and a lower steel ring 5. One end of the upper side plate 2 and the lower side plate 3 is in contact connection with the tread block 1, and the other end is in contact connection with the upper steel ring 4 and the lower steel ring 5. A movable block 6 is arranged at a position on the lower side plate 3 close to the lower steel ring 5, and a temperature measuring hole 7 is arranged below the movable block 6. A temperature measuring wire is arranged in the temperature measuring hole 7. The temperature measuring hole 7 of the present utility model is opened on the lower side plate 3 and is blocked by the movable block 6 when not measuring temperature. Compared with the temperature measuring hole opened on the steel ring and blocked by a plug bolt, there is no need to set a thread in the temperature measuring hole, and the temperature measuring wire will not be damaged.

[0026] The temperature measurement hole 7 includes a wire threading hole 71, a communication hole 72, and a wire releasing hole 73. The wire threading hole 71 is provided below the movable block 6. One end of the communication hole 72 communicates with the wire threading hole 71, and the other end extends to the edge of the lower side plate 3 close to the pattern block 1 and communicates with the wire releasing hole 73. The diameter of the wire threading hole 71 is larger than the sum of the diameters of the multi-strand temperature measurement wires to ensure that the multi-strand temperature measurement wires can pass through smoothly.

[0027] A front end reference line 8 is provided on the lower side plate 3. The extension line of the front end reference line 8 intersects with the central extension line of the temperature measurement hole 7, and the included angle is α, where α ≤ 45°, which is convenient for the temperature measurement personnel to operate.

[0028] Further, in this embodiment, the wire threading hole 71 is a cylindrical hole with a diameter of 12 mm, and its hole depth extends to the bottom of the lower side plate 3. The communication hole 72 is a rectangular groove with a groove width of 16 mm and a groove depth of 12 mm. A first chamfer 9 is provided at the connection between the communication hole 72 and the wire threading hole 71, and the radius of the first chamfer 9 is 6 mm. The wire releasing hole 73 is a combination of a cuboid and a semi-cylinder, with a total length of 20 mm, a width of 15 mm, and the diameter of the semi-cylinder being 15 mm. The hole depth of the wire releasing hole 73 extends to the bottom of the lower side plate 3. A second chamfer 10 is provided at the connection between the wire releasing hole 73 and the communication hole 72, and the radius of the second chamfer 10 is 5 mm. A third chamfer 11 is provided at the connection between the movable block 6 and the wire threading hole 71, and the radius of the third chamfer 11 is 1.2 mm. A fourth chamfer 12 is provided at the connection between the wire releasing hole 73 and the lower side plate 3, and the radius of the fourth chamfer 12 is 2 mm. The provision of the first chamfer 9, the second chamfer 10, the third chamfer 11, and the fourth chamfer 14 ensures that the temperature measurement wire will not be cut by sharp corners during the temperature measurement process.

[0029] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its application concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A semi-steel tire mold with a temperature measuring hole, comprising a tread block (1), an upper side plate (2), a lower side plate (3), an upper steel ring (4) and a lower steel ring (5), wherein one end of the upper side plate (2) and the lower side plate (3) are in contact with the tread block (1), and the other end is in contact with the upper steel ring (4) and the lower steel ring (5), characterized in that: A movable block (6) is provided on the lower side plate (3) at a position close to the lower steel ring (5), a temperature measuring hole (7) is provided below the movable block (6), and a temperature measuring line is provided in the temperature measuring hole (7); The temperature measuring hole (7) comprises a threading hole (71), a connecting hole (72) and a wire releasing hole (73); the threading hole (71) is arranged below the movable block (6); one end of the connecting hole (72) is connected to the threading hole (71), and the other end extends to the edge of the lower side plate (3) close to the pattern block (1) and is connected to the wire releasing hole (73).

2. A semi-steel tire mold with a temperature measuring hole as claimed in claim 1, characterized in that: The lower side plate (3) is provided with a front end reference line (8), and an extension line of the front end reference line (8) intersects with a center extension line of the temperature measuring hole (7), with an included angle α, wherein α≤45°.

3. A semi-steel tire mold with a temperature measuring hole as claimed in claim 1, characterized in that: The threading hole (71) is a cylindrical hole with a diameter of 10-12 mm, and its hole depth extends to the bottom of the lower side plate (3).

4. A semi-steel tire mold with a temperature measuring hole as claimed in claim 1, characterized in that: The communicating hole (72) is a rectangular groove with a groove width of 14-16 mm and a groove depth of 10-12 mm. A chamfer (9) is provided at the connection between the communicating hole (72) and the threading hole (71), and the radius of the chamfer (9) is 5-7 mm.

5. A semi-steel tire mold with a temperature measuring hole as claimed in claim 1, characterized in that: The wire-releasing hole (73) is a combination of a rectangular parallelepiped and a semi-cylinder, with a total length of 19-21 mm and a width of 14-16 mm. The diameter of the semi-cylinder is 14-16 mm. The hole depth of the wire-releasing hole (73) extends to the bottom of the lower side plate (3). A second chamfer (10) is provided at the connection between the wire-releasing hole (73) and the connecting hole (72), and the radius of the second chamfer (10) is 4-6 mm.

6. A semi-steel tire mold with a temperature measuring hole as claimed in claim 1, characterized in that: A third chamfer (11) is provided at the connection between the movable block (6) and the threading hole (71), and the radius of the third chamfer (11) is 1-1.5 mm. A fourth chamfer (12) is provided at the connection between the wire release hole (73) and the lower side plate (3), and the radius of the fourth chamfer (12) is 1.5-2 mm.

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