Electric heating device for die sleeve of vulcanizing machine

Abstract

The invention discloses an electric heating device for a die sleeve of a vulcanizing machine. The electric heating device comprises a heat preservation shield, a guide rod, a swing rod, a lower movable arm, an upper movable arm, a lifting adjusting rod, a telescopic support and a wire. A plurality of lugs are symmetrically and evenly distributed on the inner wall of the heat preservation shield along the circumference. Two ends of the guide rod are mounted in guide holes of the lugs, the upper end of the guide rod is connected with the swing rod, the lower end of the guide rod is connected with the lower movable arm, and the upper movable arm slidably sleeves the guide rod; the upper end of the lifting adjusting rod penetrates out of the swing rod, and the lower end of the lifting adjusting rod is connected with the upper movable arm. The telescopic support is composed of a mounting base and a plurality of telescopic units, each telescopic unit is provided with a wire clamp, and the telescopic support is fixed between the upper movable arm and the lower movable arm through the mounting base. The wire is wound around the mold through the wire clamp. The mold is directly heated through electromagnetic induction, the induction coil can be adaptively adjusted along with molds of different specifications, and the defect that an existing electric heating device is limited in size is overcome.

Description

Technical Field

[0001] The invention relates to a component structure of a tire shaping vulcanizer, in particular to an electric heating device for a mold sleeve of a vulcanizer. Background Art

[0002] The mold heating of the traditional vulcanizer is achieved by steam heating. The heating device is generally divided into three parts: upper hot plate, lower hot plate, and mold sleeve. Steam enters from the steam interface to heat the mold (such as Figure 1 However, due to the high energy consumption and complex control of steam heating, a new heating method - electric heating - is gradually replacing steam heating. Currently, there are many electric heating solutions for upper and lower heating plates, but electric heating solutions for membrane sleeves are rare.

[0003] Prior art CN 116476426 A discloses an electromagnetic heating device for a tire vulcanizer's flexible mold. Based on the principle of electromagnetic induction heating, the device improves the existing steam chamber structure of the flexible mold's center sleeve. By creating annular coil grooves of varying diameters and winding induction coils within these grooves, combined with a corresponding heating control system, the flexible mold's center sleeve is heated, ultimately heating the tread blocks through heat conduction. However, this solution still presents the following issues: due to the varying mold sizes and heights, the device cannot adapt to the vulcanization requirements of tires of varying specifications. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the present invention provides an electric heating device for a vulcanizing machine mold sleeve, which relies on electromagnetic induction to directly heat the mold and can be applied to the electric heating of molds of different specifications.

[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0006] The electric heating device of the mold sleeve of the vulcanizing machine includes a heat-insulating shield, a guide rod, a swing rod, a lower movable arm, an upper movable arm, a lifting adjustment rod, a telescopic bracket, and a wire;

[0007] The heat preservation shield is cylindrical, and a plurality of ear seats are evenly distributed on the inner wall along the circumference, and a guide hole is opened in the ear seats;

[0008] The two ends of the guide rod are installed in the guide holes of the ear seat, the upper end of the guide rod is connected to the swing rod, the lower end of the guide rod is connected to the lower movable arm, and the upper movable arm is slidably sleeved on the guide rod;

[0009] The lifting adjustment rod and the guide rod are arranged side by side, the upper end of the lifting adjustment rod passes through the swing rod, and the lower end is connected to the upper movable arm;

[0010] The telescopic bracket is composed of a mounting base and a plurality of telescopic units. Each telescopic unit is provided with a wire clamp. The telescopic bracket is fixed between the upper movable arm and the lower movable arm through the mounting base. The lifting adjustment rod can drive the telescopic unit to extend and retract.

[0011] The wire is wound around the mold through a wire clamp.

[0012] Furthermore, the telescopic unit is a parallel four-bar linkage mechanism formed by four connecting rods of equal length connected by pins.

[0013] Furthermore, a wire winder is provided on the outside of the heat-insulating shield, and the wire can be tightened or loosened by the wire winder.

[0014] Furthermore, the lifting adjustment rod is provided with a thread, and the rocker arm is provided with a nut for limiting the lifting adjustment rod.

[0015] Compared with the existing technology, the advantages and effects of the present invention are: the present invention enables the induction coil to be adaptively adjusted to molds of different specifications through the coordinated cooperation of multiple components such as the guide rod, rocker arm, movable arm, lifting adjustment rod, and telescopic bracket, thereby overcoming the disadvantage of the limited size of existing electric heating devices and being able to electrically heat molds of different sizes and heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of an existing vulcanizing machine mold heating device (steam heating).

[0017] Figure 2 It is a structural schematic diagram of the present invention.

[0018] Figure 3 It is a top view of the present invention.

[0019] Figure 4 It is a front view of the telescopic bracket in the present invention.

[0020] Figure 5 It is a side view of the telescopic bracket in the present invention.

[0021] Figure 6 It is a schematic diagram of the working state of the present invention.

[0022] Figure number identification: 1. Thermal insulation cover; 2. Guide rod; 3. Rocker arm; 4. Upper movable arm; 5. Lower movable arm; 6. Lifting adjustment rod; 7. Telescopic bracket; 7-1. Mounting seat; 7-2. Telescopic unit; 7-3. Wire clamp; 8. Wire; 9. Ear seat; 10. Winder. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the following examples, but the present invention is not limited to these examples.

[0024] The electric heating device for the mold sleeve of the vulcanizing machine described in this embodiment is as follows: Figure 2 and Figure 3 As shown, it includes a heat preservation shield 1, a guide rod 2, a swing arm 3, a lower movable arm 4, an upper movable arm 5, a lifting adjustment rod 6, a telescopic bracket 7, a wire 8, and a winder 10.

[0025] like Figure 2 and Figure 3 As shown, the thermal insulation shield 1 is cylindrical and is mainly composed of steel, thermal insulation materials and other materials. It is used to insulate the entire vulcanization chamber and also serves as a support for the device. The top and bottom ends of the inner wall of the thermal insulation shield 1 are symmetrically distributed along the circumference with a number of ear seats 9, and the ear seats 9 are provided with guide holes for installing the guide rod 2.

[0026] like Figure 2 As shown, the two ends of the guide rod 2 are respectively installed in the guide holes of the upper and lower ear seats 9, the upper end of the guide rod 2 is connected to a horizontally arranged rocker rod 3, the lower end of the guide rod 2 is connected to the lower movable arm 4, and the upper movable arm 5 is slidably sleeved on the guide rod 2. By toggling the rocker rod 2, the guide rod 2 can be rotated in the guide hole of the ear seat 9, thereby driving the lower movable arm 4 and the upper movable arm 5 to swing together around their axis.

[0027] like Figure 2 As shown, the lifting adjustment rod 6 is arranged side by side with the guide rod 2, the upper end of the lifting adjustment rod 6 passes through the rocker arm 3 and is connected to a cross handle, and the lower end is rotatably connected to the upper movable arm 5. The rod body of the lifting adjustment rod 6 is provided with a thread, and the rocker arm 3 is provided with a limiting nut for limiting the lifting adjustment rod 6. The lifting and lowering of the lifting adjustment rod 6 can be controlled by rotating the cross handle.

[0028] like Figure 2 、 4 As shown in Figures 5 and 6, the telescopic bracket 7 consists of a mounting base 7-1 and a plurality of telescopic units 7-2. In this embodiment, the telescopic unit 7-2 is a parallel four-bar linkage formed by four equal-length connecting rods connected by a pin. Each telescopic unit 7-2 is provided with a wire clamp 7-3, and the wire clamp 7-3 is a pin with a ring structure. The telescopic bracket 7 is fixed between the upper movable arm 4 and the lower movable arm 5 through the upper and lower mounting bases 7-1. The upper movable arm 5 can be driven to move up and down by the lifting adjustment rod 6, thereby driving the telescopic unit 7-2 to extend and retract up and down.

[0029] like Figure 2 and Figure 3 As shown, the wire 8 is wound around the mold through the wire clamp 7-3, and a winder 10 is also provided on the outside of the thermal insulation shield 1. The wire 8 can adjust the winding length through the winder 10 to achieve tightening or loosening.

[0030] The working principle of this embodiment is as follows:

[0031] 1. When installing the mold (such as Figure 6 As shown), the telescopic bracket 7 is opened to the maximum position by the rocker 2, and the wire 8 is wound. Since the outer diameter and height of molds of different specifications are different, the height of the telescopic bracket 5 can be adjusted to be consistent with the height of the mold by the lifting adjustment rod 6;

[0032] 2. After the mold is installed, close the telescopic bracket 7 to the same diameter as the mold through the swing rod 2, tighten the wire 8 through the winder 10, and finally connect the wire 8 to the external controller to complete the installation;

[0033] 3. When the mold needs to be disassembled, the wire 8 is loosened through the winder 10, and the telescopic bracket 7 is opened to the maximum through the rocker 2. At the same time, the coil is expanded, and then the mold can be disassembled and assembled smoothly.

Claims

1. Vulcanizing machine mold sleeve electric heating device, characterized by: It comprises a heat-insulating shield (1), a guide rod (2), a swing rod (3), a lower movable arm (4), an upper movable arm (5), a lifting and lowering adjustment rod (6), a telescopic bracket (7), and a conducting wire (8); The heat-insulating shield (1) is cylindrical, and a plurality of ear seats (9) are evenly distributed symmetrically along the circumference of the inner wall thereof, and a guide hole is opened in the ear seat (9); The two ends of the guide rod (2) are installed in the guide holes of the ear seat (9), the upper end of the guide rod (2) is connected to the swing rod (3), the lower end of the guide rod (2) is connected to the lower movable arm (4), and the upper movable arm (5) is slidably sleeved on the guide rod (2); The lifting adjustment rod (6) is arranged side by side with the guide rod (2), the upper end of the lifting adjustment rod (6) passes through the swing rod (3), and the lower end is connected to the upper movable arm (5); The telescopic bracket (7) is composed of a mounting base (7-1) and a plurality of telescopic units (7-2). Each telescopic unit (7-2) is provided with a wire clamp (7-3). The telescopic bracket (7) is fixed between the upper movable arm (4) and the lower movable arm (5) via the mounting base (7-1). The lifting adjustment rod (6) can drive the telescopic unit (7-2) to extend and retract upward and downward. The conductor (8) is wound around the mold via a wire clamp (7-3).

2. The electric heating device for a vulcanizing machine mold sleeve according to claim 1, characterized in that: The telescopic unit (7-2) is a parallel four-bar linkage mechanism formed by four equal-length connecting rods connected by pins.

3. The electric heating device for a vulcanizing machine mold sleeve according to claim 1, characterized in that: A wire winder (10) is further provided on the outside of the heat-insulating shield (1), and the wire (8) can be tightened or loosened via the wire winder (10).

4. The electric heating device for a vulcanizing machine mold sleeve according to claim 1, characterized in that: The lifting adjustment rod (6) is provided with a thread, and the rocker arm (3) is provided with a nut for limiting the lifting adjustment rod (6).

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