Electric heating mold for rubber tire production

Abstract

The utility model discloses an electric heating die for rubber tire production, which relates to the technical field of rubber tire production and comprises a lower die holder and an upper die holder and further comprises a base fixedly connected to one side, deviating from the upper die holder, of the lower die holder; the annular plate is fixedly connected to the outer wall of the upper die base, a positioning column is fixedly connected to the bottom end of the annular plate, and a conical head is arranged at the bottom of the positioning column; the positioning pipe is fixedly connected to the side position of the top end of the base, a positioning through hole is formed in the positioning pipe, and the positioning through hole is in a circular truncated cone shape with the wide upper portion and the narrow lower portion. According to the utility model, the conical head is arranged at the bottom of the positioning column for positioning the upper die holder and the lower die holder, and the circular-truncated-cone-shaped positioning through hole with the wide upper part and the narrow lower part is formed in the inner side of the positioning pipe and is matched with the conical head, so that even if the conical head and the positioning through hole are abraded, accurate positioning can be realized through further pressing between the conical head and the positioning through hole; and the positioning accuracy between the upper mold base and the lower mold base in the electric heating mold can be improved, so that the production quality of rubber tires is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber tire production, in particular to an electric heating mold for rubber tire production. Background Art

[0002] In the production process of rubber tires, tire molds are mainly used for tire vulcanization molding. Among them, electric heating molds are a commonly used type of tire molds. They mainly heat the inner cavity of the mold by electric heating, so that the rubber tire can be shaped in the mold by heating and softening.

[0003] In the existing technology, the electric heating mold used for rubber tire molding processing is mainly composed of an upper mold and a lower mold. The upper mold and the lower mold are stacked to form a mold cavity for accommodating the rubber tire blank. At the same time, the upper mold and the lower mold are also equipped with electric heating devices, thereby meeting the use requirements of heating and molding the rubber tire.

[0004] In actual use, it is found that the accuracy of the alignment of the upper mold and the lower mold directly affects the heating quality of the rubber tire. In the electric heating mold currently used, the upper mold and the lower mold are mainly aligned by positioning columns. However, repeated use can easily cause wear between the positioning columns and the guide grooves, thereby increasing the gap between the two after alignment, reducing the accuracy of the alignment between the upper mold and the lower mold, and affecting the processing quality of the rubber tire. For this reason, an electric heating mold for rubber tire production is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an electrically heated mold for producing rubber tires to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an electrically heated mold for producing rubber tires, comprising a lower mold base and an upper mold base, and further comprising:

[0007] A base, the base being fixedly connected to a side of the lower die base facing away from the upper die base;

[0008] An annular plate, the annular plate is fixedly connected to the side of the outer wall of the upper die base close to the lower die base, the bottom end of the annular plate is fixedly connected to a positioning column, and the bottom of the positioning column is provided with a conical head;

[0009] A positioning tube is fixedly connected to the side position of the top end of the base. A positioning through hole matching the conical head is provided in the positioning tube. The positioning through hole is in the shape of a truncated cone that is wide at the top and narrow at the bottom.

[0010] Preferably, there are at least two positioning tubes and positioning posts, which are arranged at intervals, and the positioning tubes correspond to the positioning posts one by one.

[0011] Preferably, a positioning seat is movably provided in the positioning tube, the positioning through hole is opened in the middle of the positioning seat, and the two ends of the positioning through hole are connected to the top and bottom ends of the positioning seat, and an elastic compression spring is fixedly connected between the positioning seat and the bottom of the inner cavity of the positioning tube.

[0012] Preferably, a linear bearing is provided between the positioning tube and the positioning seat, the outer wall of the linear bearing is fixedly connected to the inner wall of the positioning tube, and the outer wall of the positioning seat is slidably connected to the inner side of the linear bearing.

[0013] Preferably, a support frame extending to the top of the lower mold base is fixedly installed on the side wall of the base, a lifting cylinder is fixedly connected to the top of the support frame, and a pressure plate is fixedly connected to the telescopic end of the lifting cylinder.

[0014] Preferably, the support frame includes a rotating seat, which is fixedly connected to the side wall of the base, the top of the rotating seat is fixedly connected to a seat bearing, the middle of the seat bearing is rotatably connected to a support rod, the top of the support rod is fixedly connected to a supporting plate, and the lifting cylinder is fixedly connected to the end of the supporting plate away from the support rod.

[0015] The technical effects and advantages of this utility model are:

[0016] The utility model provides a conical head at the bottom of the positioning column used for positioning the upper die base and the lower die base, and provides a truncated cone-shaped positioning through hole that is wide at the top and narrow at the bottom on the inner side of the positioning tube to cooperate with the conical head. Even if the conical head and the positioning through hole are worn, accurate positioning can be achieved by further pressing the two together, which helps to improve the accuracy of positioning between the upper die base and the lower die base in the electric heating mold, thereby improving the production quality of rubber tires. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a schematic diagram of the three-dimensional structure of the base of the utility model.

[0019] Figure 3 This is a schematic side sectional structural diagram of the positioning tube of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the positioning column of the utility model.

[0021] In the figure: 100, base; 101, positioning tube; 102, positioning column; 103, conical head; 104, linear bearing; 105, positioning seat; 106, positioning through hole; 107, elastic compression spring; 108, pressure plate; 109, rotating seat; 110, seat bearing; 111, support rod; 112, load-bearing plate; 113, lifting cylinder; 200, lower die base; 300, upper die base; 301, annular plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] The utility model provides Figures 1-4 The electric heating mold for rubber tire production shown in the figure includes a lower mold base 200 and an upper mold base 300. The upper mold base 200 and the lower mold base 300 are stacked to perform heating and molding of the rubber tire. The principle of the tire vulcanization mold disclosed in the utility model patent with the authorization announcement number CN219947360U includes a base 100, an annular plate 301 and a positioning tube 101. The base 100 is fixedly connected to the side of the lower mold base 200 away from the upper mold base 300, the annular plate 301 is fixedly connected to the side of the outer wall of the upper mold base 300 close to the lower mold base 200, and the positioning tube 101 is fixedly connected to the side position of the top of the base 100; the bottom end of the annular plate 301 is fixedly connected to a positioning column 102, the bottom of the positioning column 102 is provided with a conical head 103, and the positioning tube 101 is provided with a positioning through hole 106 matching the conical head 103, and the positioning through hole 106 is circular with a wide top and a narrow bottom. The upper mold base 300 and the lower mold base 300 are stacked together by only inserting the conical head 103 at the bottom of the positioning column 102 at the bottom end of the annular plate 301 of the upper mold base 300 into the positioning hole 106 in the positioning tube 101. The conical head 103 and the positioning hole 106, which is wide at the top and narrow at the bottom, can be used to interweave the self-centering positioning, thereby making the stacking positioning between the upper mold base 300 and the lower mold base 200 more accurate; there are at least two positioning tubes 101 and positioning columns 102 and they are arranged at intervals. The positioning tubes 101 correspond to the positioning columns 102 one by one. The mutual cooperation of multiple positioning columns 102 and multiple positioning tubes 101 can realize multi-point positioning when the upper mold base 300 and the lower mold base 200 are stacked, making the stacking position between the two more accurate, thereby making the mold cavity formed inside the two more accurately positioned, thereby ensuring the quality of the rubber tire heating and molding.

[0024] Furthermore, a positioning seat 105 is movably provided in the positioning tube 101, and a linear bearing 104 is provided between the positioning tube 101 and the positioning seat 105. The outer wall of the linear bearing 104 is fixedly connected to the inner wall of the positioning tube 101, and the outer wall of the positioning seat 105 is slidably connected to the inner side of the linear bearing 104. A positioning through hole 106 is opened in the middle position of the positioning seat 105, and the two ends of the positioning through hole 106 are connected to the top and bottom ends of the positioning seat 105. An elastic compression spring 107 is fixedly connected between the positioning seat 105 and the bottom of the inner cavity of the positioning tube 101. By using the setting of the linear bearing 104, It can only reduce the friction resistance encountered by the positioning seat 105 during the lifting and lowering movement in the positioning tube 101, avoid wear between the two, and enhance the stability of the positioning seat 105 during the lifting and lowering process. The setting of the elastic compression spring 107 can elastically support the positioning seat 105, so that the conical head 103 at the bottom of the positioning column 102 can maintain a tight extrusion state with the positioning through hole 106 on the positioning seat 105, thereby ensuring the accuracy of positioning between the two, so that when the conical head 103 or the inner wall of the positioning through hole 106 is worn, the accuracy of positioning between the two can still be guaranteed.

[0025] Furthermore, a support frame extending to the top of the lower die base 200 is fixedly installed on the side wall of the base 100, and a lifting cylinder 113 is fixedly connected to the top of the support frame. The telescopic end of the lifting cylinder 113 is fixedly connected to the pressing plate 108. The lifting cylinder 113 drives the pressing plate 108 to rise and fall. After the upper die base 300 is stacked to the top position of the lower die base 200, the pressure transmitted to the pressing plate 108 by the lifting cylinder 113 can make the pressing plate 108 press down the upper die base 300, thereby maintaining the stability of the stacking between the upper die base 300 and the lower die base 200.

[0026] Among them, the support frame includes a rotating seat 109, which is fixedly connected to the side wall of the base 100, and a seat bearing 110 is fixedly connected to the top of the rotating seat 109. The middle part of the seat bearing 110 is rotatably connected to the support rod 111, and the top of the support rod 111 is fixedly connected to the supporting plate 112. The lifting cylinder 113 is fixedly connected to the end of the supporting plate 112 away from the support rod 111. The seat bearing 110 is used to make the support rod 111 and the rotating seat 109 rotatable. In this way, the pressing plate 108 can be moved away from the top of the upper mold base 300 through the rotation of the support rod 111, and the space above the upper mold base 300 is vacated, making the disassembly and assembly of the upper mold base 300 more convenient and efficient.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An electrically heated mold for producing rubber tires, comprising a lower mold base (200) and an upper mold base (300), characterized in that: Also includes: A base (100), wherein the base (100) is fixedly connected to a side of the lower mold base (200) facing away from the upper mold base (300); An annular plate (301), the annular plate (301) is fixedly connected to the outer wall of the upper die base (300) on one side close to the lower die base (200), the bottom end of the annular plate (301) is fixedly connected to a positioning column (102), and the bottom of the positioning column (102) is provided with a conical head (103); A positioning tube (101) is fixedly connected to the side position of the top end of the base (100), and a positioning through hole (106) matching the conical head (103) is provided in the positioning tube (101), and the positioning through hole (106) is in the shape of a truncated cone that is wide at the top and narrow at the bottom.

2. The electrically heated mold for producing rubber tires according to claim 1, characterized in that: There are at least two positioning tubes (101) and positioning posts (102) and they are arranged at intervals, and the positioning tubes (101) correspond to the positioning posts (102) one by one.

3. The electrically heated mold for producing rubber tires according to claim 2, characterized in that: A positioning seat (105) is movably provided in the positioning tube (101), the positioning through hole (106) is opened in the middle of the positioning seat (105), and the two ends of the positioning through hole (106) are connected to the top and bottom ends of the positioning seat (105), and an elastic compression spring (107) is fixedly connected between the positioning seat (105) and the bottom of the inner cavity of the positioning tube (101).

4. The electrically heated mold for producing rubber tires according to claim 3, characterized in that: A linear bearing (104) is provided between the positioning tube (101) and the positioning seat (105); the outer wall of the linear bearing (104) is fixedly connected to the inner wall of the positioning tube (101); and the outer wall of the positioning seat (105) is slidably connected to the inner side of the linear bearing (104).

5. The electrically heated mold for producing rubber tires according to claim 4, characterized in that: A support frame extending to the top of the lower die base (200) is fixedly installed on the side wall of the base (100), a lifting cylinder (113) is fixedly connected to the top of the support frame, and a pressing plate (108) is fixedly connected to the telescopic end of the lifting cylinder (113).

6. The electrically heated mold for producing rubber tires according to claim 5, characterized in that: The support frame includes a rotating seat (109), the rotating seat (109) is fixedly connected to the side wall of the base (100), the top of the rotating seat (109) is fixedly connected to a seat bearing (110), the middle of the seat bearing (110) is rotatably connected to a support rod (111), the top of the support rod (111) is fixedly connected to a bearing plate (112), and the lifting cylinder (113) is fixedly connected to the end of the bearing plate (112) away from the support rod (111).

Images